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• Welcome to BlogEngine.NET 2.9 using Microsoft SQL Server

  If you see this post it means that BlogEngine.NET 2.9 is running and the hard part of creating your own blog is done. There is only a few things left to do. Write Permissions To be able to log in to the blog and writing posts, you need to enable write permissions on the App_Data folder. If you’re blog is hosted at a hosting provider, you can either log into your account’s admin page or call the support. You need write permissions on the App_Data folder because all posts, comments, and blog attachments are saved as XML files and placed in the App_Data folder.  If you wish to use a database to to store your blog data, we still encourage you to enable this write access for an images you may wish to store for your blog posts.  If you are interested in using Microsoft SQL Server, MySQL, SQL CE, or other databases, please see the BlogEngine wiki to get started. Security When you've got write permissions to the App_Data folder, you need to change the username and password. Find the sign-in link located either at the bottom or top of the page depending on your current theme and click it. Now enter "admin" in both the username and password fields and click the button. You will now see an admin menu appear. It has a link to the "Users" admin page. From there you can change the username and password.  Passwords are hashed by default so if you lose your password, please see the BlogEngine wiki for information on recovery. Configuration and Profile Now that you have your blog secured, take a look through the settings and give your new blog a title.  BlogEngine.NET 2.9 is set up to take full advantage of of many semantic formats and technologies such as FOAF, SIOC and APML. It means that the content stored in your BlogEngine.NET installation will be fully portable and auto-discoverable.  Be sure to fill in your author profile to take better advantage of this. Themes, Widgets & Extensions One last thing to consider is customizing the look of your blog.  We have a few themes available right out of the box including two fully setup to use our new widget framework.  The widget framework allows drop and drag placement on your side bar as well as editing and configuration right in the widget while you are logged in.  Extensions allow you to extend and customize the behaivor of your blog.  Be sure to check the BlogEngine.NET Gallery at dnbegallery.org as the go-to location for downloading widgets, themes and extensions. On the web You can find BlogEngine.NET on the official website. Here you'll find tutorials, documentation, tips and tricks and much more. The ongoing development of BlogEngine.NET can be followed at CodePlex where the daily builds will be published for anyone to download.  Again, new themes, widgets and extensions can be downloaded at the BlogEngine.NET gallery. Good luck and happy writing. The BlogEngine.NET team

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• Pulling My Hair Out - PHP Forms [migrated]

  - by Joe Turner

  Hello and good morning to all. This is my second post on this subject because the first time, things still didn't work and I have now literally been trying to solve this for about 4/5 days straight... I have a file, called 'edit.php', in this file is a form; <?php $company = $_POST["company"]; $phone = $_POST["phone"]; $colour = $_POST["colour"]; $email = $_POST["email"]; $website = $_POST["website"]; $video = $_POST["video"]; $image = $_POST["image"]; $extension = $_POST["extension"]; ?> <form method="post" action="generate.php"><br> <input type="text" name="company" placeholder="Company Name" /><br> <input type="text" name="slogan" placeholder="Slogan" /><br> <input class="color {required:false}" name="colour" placeholder="Company Colour"><br> <input type="text" name="phone" placeholder="Phone Number" /><br> <input type="text" name="email" placeholder="Email Address" /><br> <input type="text" name="website" placeholder="Full Website - Include http://" /><br> <input type="text" name="video" placeholder="Video URL" /><br> <input type="submit" value="Generate QuickLinks" style="background:url(images/submit.png) repeat-x; color:#FFF"/> </form> Then, when the form is submitted, it creates a file using the variables that have been input. The fields that have been filled in go on to become links, I need to be able to say 'if a field is left blank, then put 'XXX' in as a default value'. Does anyone have any ideas? I really think I have tried everything. I'll put below a snippet from the .php file that generates the links... <?php $File = "includes/details.php"; $Handle = fopen($File, 'w'); ?> <?php $File = "includes/details.php"; $Handle = fopen($File, 'w'); $Data = "<div id='logo'> <img width='270px' src='images/logo.png'/img> <h1 style='color:#$_POST[colour]'>$_POST[company]</h1> <h2>$_POST[slogan]</h2> </div> <ul> <li><a class='full-width button' href='tel:$_POST[phone]'>Phone Us</a></li> <li><a class='full-width button' href='mailto:$_POST[email]'>Email Us</a></li> <li><a class='full-width button' href='$_POST[website]'>View Full Website</a></li> <li><a class='full-width button' href='$_POST[video]'>Watch Us</a></li> </ul> \n"; I really do look forward to any response...

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• Use a custom value object or a Guid as an entity identifier in a distributed system?

  - by Kazark

  tl;dr I've been told that in domain-driven design, an identifier for an entity could be a custom value object, i.e. something other than Guid, string, int, etc. Can this really be advisable in a distributed system? Long version I will invent an situation analogous to the one I am currently facing. Say I have a distributed system in which a central concept is an egg. The system allows you to order eggs and see spending reports and inventory-centric data such as quantity on hand, usage, valuation and what have you. There area variety of services backing these behaviors. And say there is also another app which allows you to compose recipes that link to a particular egg type. Now egg type is broken down by the species—ostrich, goose, duck, chicken, quail. This is fine and dandy because it means that users don't end up with ostrich eggs when they wanted quail eggs and whatnot. However, we've been getting complaints because jumbo chicken eggs are not even close to equivalent to small ones. The price is different, and they really aren't substitutable in recipes. And here we thought we were doing users a favor by not overwhelming them with too many options. Currently each of the services (say, OrderSubmitter, EggTypeDefiner, SpendingReportsGenerator, InventoryTracker, RecipeCreator, RecipeTracker, or whatever) are identifying egg types with an industry-standard integer representation the species (let's call it speciesCode). We realize we've goofed up because this change could effect every service. There are two basic proposed solutions: Use a predefined identifier type like Guid as the eggTypeID throughout all the services, but make EggTypeDefiner the only service that knows that this maps to a speciesCode and eggSizeCode (and potentially to an isOrganic flag in the future, or whatever). Use an EggTypeID value object which is a combination of speciesCode and eggSizeCode in every service. I've proposed the first solution because I'm hoping it better encapsulates the definition of what an egg type is in the EggTypeDefiner and will be more resilient to changes, say if some people now want to differentiate eggs by whether or not they are "organic". The second solution is being suggested by some people who understand DDD better than I do in the hopes that less enrichment and lookup will be necessary that way, with the justification that in DDD using a value object as an ID is fine. Also, they are saying that EggTypeDefiner is not a domain and EggType is not an entity and as such should not have a Guid for an ID. However, I'm not sure the second solution is viable. This "value object" is going to have to be serialized into JSON and URLs for GET requests and used with a variety of technologies (C#, JavaScript...) which breaks encapsulation and thus removes any behavior of the identifier value object (is either of the fields optional? etc.) Is this a case where we want to avoid something that would normally be fine in DDD because we are trying to do DDD in a distributed fashion? Summary Can it be a good idea to use a custom value object as an identifier in a distributed system (solution #2)?

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• Oracle Applications Cloud Release 8 Customization: Your User Interface, Your Text

  - by ultan o'broin

  Introducing the User Interface Text Editor In Oracle Applications Cloud Release 8, there’s an addition to the customization tool set, called the User Interface Text Editor  (UITE). When signed in with an application administrator role, users launch this new editing feature from the Navigator's Tools > Customization > User Interface Text menu option. See how the editor is in there with other customization tools? User Interface Text Editor is launched from the Navigator Customization menu Applications customers need a way to make changes to the text that appears in the UI, without having to initiate an IT project. Business users can now easily change labels on fields, for example. Using a composer and activated sandbox, these users can take advantage of the Oracle Metadata Services (MDS), add a key to a text resource bundle, and then type in their preferred label and its description (as a best practice for further work, I’d recommend always completing that description). Changing a simplified UI field label using Oracle Composer In Release 8, the UITE enables business users to easily change UI text on a much wider basis. As with composers, the UITE requires an activated sandbox where users can make their changes safely, before committing them for others to see. The UITE is used for editing UI text that comes from Oracle ADF resource bundles or from the Message Dictionary (or FND_MESSAGE_% tables, if you’re old enough to remember such things). Functionally, the Message Dictionary is used for the text that appears in business rule-type error, warning or information messages, or as a text source when ADF resource bundles cannot be used. In the UITE, these Message Dictionary texts are referred to as Multi-part Validation Messages.   If the text comes from ADF resource bundles, then it’s categorized as User Interface Text in the UITE. This category refers to the text that appears in embedded help in the UI or in simple error, warning, confirmation, or information messages. The embedded help types used in the application are explained in an Oracle Fusion Applications User Experience (UX) design pattern set. The message types have a UX design pattern set too. Using UITE  The UITE enables users to search and replace text in UI strings using case sensitive options, as well as by type. Users select singular and plural options for text changes, should they apply. Searching and replacing text in the UITE The UITE also provides users with a way to preview and manage changes on an exclusion basis, before committing to the final result. There might, for example, be situations where a phrase or word needs to remain different from how it’s generally used in the application, depending on the context. Previewing replacement text changes. Changes can be excluded where required. Multi-Part Messages The Message Dictionary table architecture has been inherited from Oracle E-Business Suite days. However, there are important differences in the Oracle Applications Cloud version, notably the additional message text components, as explained in the UX Design Patterns. Message Dictionary text has a broad range of uses as indicated, and it can also be reserved for internal application use, for use by PL/SQL and C programs, and so on. Message Dictionary text may even concatenate together at run time, where required. The UITE handles the flexibility of such text architecture by enabling users to drill down on each message and see how it’s constructed in total. That way, users can ensure that any text changes being made are consistent throughout the different message parts. Multi-part (Message Dictionary) message components in the UITE Message Dictionary messages may also use supportability-related numbers, the ones that appear appended to the message text in the application’s UI. However, should you have the requirement to remove these numbers from users' view, the UITE is not the tool for the job. Instead, see my blog about using the Manage Messages UI.

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• Editing files without race conditions?

  - by user2569445

  I have a CSV file that needs to be edited by multiple processes at the same time. My question is, how can I do this without introducing race conditions? It's easy to write to the end of the file without race conditions by open(2)ing it in "a" (O_APPEND) mode and simply write to it. Things get more difficult when removing lines from the file. The easiest solution is to read the file into memory, make changes to it, and overwrite it back to the file. If another process writes to it after it is in memory, however, that new data will be lost upon overwriting. To further complicate matters, my platform does not support POSIX record locks, checking for file existence is a race condition waiting to happen, rename(2) replaces the destination file if it exists instead of failing, and editing files in-place leaves empty bytes in it unless the remaining bytes are shifted towards the beginning of the file. My idea for removing a line is this (in pseudocode): filename = "/home/user/somefile"; file = open(filename, "r"); tmp = open(filename+".tmp", "ax") || die("could not create tmp file"); //"a" is O_APPEND, "x" is O_EXCL|O_CREAT while(write(tmp, read(file)); //copy the $file to $file+".new" close(file); //edit tmp file unlink(filename) || die("could not unlink file"); file = open(filename, "wx") || die("another process must have written to the file after we copied it."); //"w" is overwrite, "x" is force file creation while(write(file, read(tmp))); //copy ".tmp" back to the original file unlink(filename+".tmp") || die("could not unlink tmp file"); Or would I be better off with a simple lock file? Appender process: lock = open(filename+".lock", "wx") || die("could not lock file"); file = open(filename, "a"); write(file, "stuff"); close(file); close(lock); unlink(filename+".lock"); Editor process: lock = open(filename+".lock", "wx") || die("could not lock file"); file = open(filename, "rw"); while(contents += read(file)); //edit "contents" write(file, contents); close(file); close(lock); unlink(filename+".lock"); Both of these rely on an additional file that will be left over if a process terminates before unlinking it, causing other processes to refuse to write to the original file. In my opinion, these problems are brought on by the fact that the OS allows multiple writable file descriptors to be opened on the same file at the same time, instead of failing if a writable file descriptor is already open. It seems that O_CREAT|O_EXCL is the closest thing to a real solution for preventing filesystem race conditions, aside from POSIX record locks. Another possible solution is to separate the file into multiple files and directories, so that more granular control can be gained over components (lines, fields) of the file using O_CREAT|O_EXCL. For example, "file/$id/$field" would contain the value of column $field of the line $id. It wouldn't be a CSV file anymore, but it might just work. Yes, I know I should be using a database for this as databases are built to handle these types of problems, but the program is relatively simple and I was hoping to avoid the overhead. So, would any of these patterns work? Is there a better way? Any insight into these kinds of problems would be appreciated.

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• return the result of a query and the total number of rows in a single function

  - by csotelo

  This is a question as might be focused on working in the best way, if there are other alternatives or is the only way: Using Codeigniter ... I have the typical 2 functions of list records and show total number of records (using the page as an alternative). The problem is that they are rather large. Sample 2 functions in my model: count Rows: function get_all_count() { $this->db->select('u.id_user'); $this->db->from('user u'); if($this->session->userdata('detail') != '1') { $this->db->join('management m', 'm.id_user = u.id_user', 'inner'); $this->db->where('id_detail', $this->session->userdata('detail')); if($this->session->userdata('management') === '1') { $this->db->or_where('detail', 1); } else { $this->db->where("id_profile IN ( SELECT e2.id_profile FROM profile e, profile e2, profile_path p, profile_path p2 WHERE e.id_profile = " . $this->session->userdata('profile') . " AND p2.id_profile = e.id_profile AND p.path LIKE(CONCAT(p2.path,'%')) AND e2.id_profile = p.id_profile )", NULL, FALSE); $this->db->where('MD5(u.id_user) <>', $this->session->userdata('id_user')); } } $this->db->where('u.id_user <>', 1); $this->db->where('flag <>', 3); $query = $this->db->get(); return $query->num_rows(); } results per page function get_all($limit, $offset, $sort = '') { $this->db->select('u.id_user, user, email, flag'); $this->db->from('user u'); if($this->session->userdata('detail') != '1') { $this->db->join('management m', 'm.id_user = u.id_user', 'inner'); $this->db->where('id_detail', $this->session->userdata('detail')); if($this->session->userdata('management') === '1') { $this->db->or_where('detail', 1); } else { $this->db->where("id_profile IN ( SELECT e2.id_profile FROM profile e, profile e2, profile_path p, profile_path p2 WHERE e.id_profile = " . $this->session->userdata('profile') . " AND p2.id_profile = e.id_profile AND p.path LIKE(CONCAT(p2.path,'%')) AND e2.id_profile = p.id_profile )", NULL, FALSE); $this->db->where('MD5(u.id_user) <>', $this->session->userdata('id_user')); } } $this->db->where('u.id_user <>', 1); $this->db->where('flag <>', 3); if($sort) $this->db->order_by($sort); $this->db->limit($limit, $offset); $query = $this->db->get(); return $query->result(); } You see, I repeat the most of the functions, the difference is that only the number of fields and management pages. I wonder if there is any alternative to get as much results as the query in a single function. I have seen many tutorials, and all create 2 functions: one to count and another to show results ... Will there be more optimal?

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• How to display strings in activity 3 from activity 1, 2? [migrated]

  - by user107160

  I need to get strings values from two different activities say activity1 and activity2, each activity should have maximum 4 edittext field..so totally eight fields should be displayed orderly in activity3. I have tried the code which is not displaying in the activity3. Look at code, Activity1 String namef = fname.getText().toString(); Intent first = new Intent(AssessmentActivity.this, Second.class); first.putExtra("list1", namef); startActivity(first); String namel = lname.getText().toString(); Intent second = new Intent(AssessmentActivity.this, Second.class); second.putExtra("list2", namel); startActivity(second); String phone = mob.getText().toString(); Intent third = new Intent(AssessmentActivity.this, Second.class); third.putExtra("list3", phone); startActivity(third); String mailid = email.getText().toString(); Intent fourth = new Intent(AssessmentActivity.this, Second.class); fourth.putExtra("list4", mailid); startActivity(fourth); Activity2 String cont = addr.getText().toString(); Intent fifth = new Intent(Second.this, Third.class); fifth.putExtra("list5", cont); startActivity(fifth); String db = dob.getText().toString(); Intent sixth = new Intent(Second.this, Third.class); sixth.putExtra("list6", db); startActivity(sixth); String nation = citizen.getText().toString(); Intent Seventh = new Intent(Second.this, Third.class); Seventh.putExtra("list7", nation); startActivity(Seventh); String subject = course.getText().toString(); Intent Eight = new Intent(Second.this, Third.class); Eight.putExtra("list8", subject); startActivity(Eight); *Activity3* TextView first = (TextView)findViewById(R.id.textView2); String fieldone = getIntent().getStringExtra("list1" ); first.setText(fieldone); TextView second = (TextView)findViewById(R.id.textView3); String fieldtwo = getIntent().getStringExtra("list2" ); second.setText(fieldtwo); TextView third = (TextView)findViewById(R.id.textView4); String fieldthree = getIntent().getStringExtra("list3" ); third.setText(fieldthree); TextView fourth = (TextView)findViewById(R.id.textView5); String fieldfour = getIntent().getStringExtra("list4" ); fourth.setText(fieldfour); TextView fifth = (TextView)findViewById(R.id.textView6); String fieldfive = getIntent().getStringExtra("list5" ); fifth.setText(fieldfive); TextView sixth = (TextView)findViewById(R.id.textView7); String fieldsix = getIntent().getStringExtra("list6" ); sixth.setText(fieldsix); TextView seventh = (TextView)findViewById(R.id.textView8); String fieldseven = getIntent().getStringExtra("list7" ); seventh.setText(fieldseven); TextView eight = (TextView)findViewById(R.id.textView3); String fieldeight = getIntent().getStringExtra("list8"); eight.setText(fieldeight);

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• vSphere Client vCenter Template Customization Specification Using Windows Sysprep Unattended Answer XML File

  - by Brian

  I'm trying to setup a vSphere Client vCenter v5.0.0 Build 455964 Template Customization Specification using a Windows Sysprep unattended answer XML file for Win2008R2. However I didn't know how Sysprep worked before attempting this so it was a time-consuming nightmare (even after reviewing VMware vSphere ESXi 5's documentation)! I think I've figure out what I'm supposed to be doing, but it's still not working. The biggest problem at this point is that vSphere Client vCenter Customization Specification IP address information is not sticking when I load a Sysprep XML file with just 1 basic setting! This can only be a bug. Here is the process I'm using: PROCESS for Windows - vSphere Client Install Windows OS install VM Tools customize Windows (GPOs can be used to do this after deployment) install Applications (GPOs can be used to do this after deployment too) shutdown the VM convert the VM to a template create a custom Windows Sysprep XML answer file with desired customizations View Management Customization Specifications Manager create "New" Specification for "Target Virtual Machine OS" select Windows check "Use Custom Sysprep Answer File" (ADDS: Custom Sysprep File. KEEPS: Network (IP), Operating System Options (SID, Sysprep /generalize). REPLACES: Registration Information of Owner Name & Organization, Computer Name, Windows License (Key), Administrator Password, Time Zone, Run Once, Workgroup or Domain) name it as "VMwareCS-OS####R#x32/64w/Sysprep-TEST" (CS=Customization Specification) set Description as "Created YYYY/MM/DD by FLast" NEXT import a Sysprep answer file from secure location NEXT Custom settings NEXT click "..." box to right of "Use DHCP" set "Use the following IP settings:" for "IP Address" fill out the first 2 octets set appropriate values for other 2-3 fields set DNS server addresses OK NEXT check "Generate New Security ID (SID)" ALWAYS as template is likely a domain-member computer so it can be updated occasionally NEXT Finish View Inventory VMs and Templates right-click previously completed template Deploy Virtual Machine from this Template provide the new OS name (max15char) select inventory location NEXT select Host/Cluster (wait for validation to succeed) NEXT select Resource Pool (wait for validation to succeed) NEXT select Storage location NEXT check "Power on this virtual machine after creation" select "Customize using an existing customization specification" select desired specification select "Use the Customization Wizard to temporarily adjust the specification before deployment" NEXT NEXT Custom settings? NEXT check "Generate New Security ID (SID)" ALWAYS as template is likely a domain-member computer so it can be updated occasionally NEXT Finish Finish. I know a community member named "brian" (http://serverfault.com/users/25904/brian) has worked with this scenario before, but I couldn't figure out how to contact him directly, so Brian if you see this message could you provide some information to help? Thanks, Brian

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• How can I centralise MySQL data between 3 or more geographically separate servers?

  - by Andy Castles

  To explain the background to the question: We have a home-grown PHP application (for running online language-learning courses) running on a Linux server and using MySQL on localhost for saving user data (e.g. results of tests taken, marks of submitted work, time spent on different pages in the courses, etc). As we have students from different geographic locations we currently have 3 virtual servers hosted close to those locations (Spain, UK and Hong Kong) and users are added to the server closest to them (they access via different URLs, e.g. europe.domain.com, uk.domain.com and asia.domain.com). This works but is an administrative nightmare as we have to remember which server a particular user is on, and users can only connect to one server. We would like to somehow centralise the information so that all users are visible on any of the servers and users could connect to any of the 3 servers. The question is, what method should we use to implement this. It must be an issue that that lots of people have encountered but I haven't found anything conclusive after a fair bit of Googling around. The closest I have seen to solutions are: something like master-master replication, but I have read so many posts suggesting that this is not a good idea as things like auto_increment fields can break. circular replication, this sounded perfect but to quote from O'Reilly's High Performance MySQL, "In general, rings are brittle and best avoided" We're not against rewriting code in the application to make it work with whatever solution is required but I am not sure if replication is the correct thing to use. Thanks, Andy P.S. I should add that we experimented with writes to a central database and then using reads from a local database but the response time between the different servers for writing was pretty bad and it's also important that written data is available immediately for reading so if replication is too slow this could cause out-of-date data to be returned. Edit: I have been thinking about writing my own rudimentary replication script which would involve something like having each user given a server ID to say which is his "home server", e.g. users in asia would be marked as having the Hong Kong server as their own server. Then the replication scripts (which would be a PHP script set to run as a cron job reasonably frequently, e.g. every 15 minutes or so) would run independently on each of the servers in the system. They would go through the database and distribute any information about users with the "home server" set to the server that the script is running on to all of the other databases in the system. They would also need to suck new information which has been added to any of the other databases on the system where the "home server" flag is the server where the script is running. I would need to work out the details and build in the logic to deal with conflicts but I think it would be possible, however I wanted to make sure that there is not a correct solution for this already out there as it seems like it must be a problem that many people have already come across.

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• Asterisk Outgoing CDR Logging To Mysql

  - by user3295551

  Trying to utilize the cdr logging (to mysql) using custom fields. The problem I am facing is only when an outbound call is placed, during inbound calls the custom field I am able to log no problem. The reason I am having an issue is because the custom cdr field I need is a unique value for each user on the system. sip.conf ... ... [sales_department](!) type=friend host=dynamic context=SalesAgents disallow=all allow=ulaw allow=alaw qualify=yes qualifyfreq=30 ;; company sales agents: [11](sales_agent) secret=xxxxxx callerid="<...>" [12](sales_agent) secret=xxxxxx callerid="<...>" [13](sales_agent) secret=xxxxxx callerid="<...>" [14](sales_agent) secret=xxxxxx callerid="<...>" extensions.conf [SalesAgents] include => Services ; Outbound calls exten=>_1NXXNXXXXXX,1,Dial(SIP/${EXTEN}@myprovider) ; Inbound calls exten=>100,1,NoOp() same => n,Set(CDR(agent_id)=11) same => n,CELGenUserEvent(Custom Event) same => n,Dial(${11_1},25) same => n,GotoIf($["${DIALSTATUS}" = "BUSY"]?busy:unavail) same => n(unavail),VoiceMail(11@asterisk) same => n,Hangup() same => n(busy),VoiceMail(11@asterisk) same => n,Hangup() exten=>101,1,NoOp() same => n,Set(CDR(agent_id)=12) same => n,CELGenUserEvent(Custom Event) same => n,Dial(${12_1},25) same => n,GotoIf($["${DIALSTATUS}" = "BUSY"]?busy:unavail) same => n(unavail),VoiceMail(12@asterisk) same => n,Hangup() same => n(busy),VoiceMail(12@asterisk) same => n,Hangup() ... ... For the inbound section of the dialplan in the above example I am able to insert the custom cdr field (agent_id). But above it you can see for the Oubound section of the dialplan I have been stumped on how I would be able to tell the dialplan which agent_id is making the outbound call. My Question: how to take the agent_id=[11] & agent_id=[12] and agent_id=[13] and agent_id=[14] etc and use that as a custom field for cdr on outbound calls?

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• 401 - Unauthorized On Server 2008 R2 IIS 7.5

  - by mxmissile

  I have a web application deployed to Server 2008 IIS 7.5 box. From remote it gives this error: 401 - Unauthorized: Access is denied due to invalid credentials. (remote = desktops on the same LAN) Have tried several remote clients using different browsers, all the same result. (IE, FF, and Chrome) Hitting the application from the desktop of the server itself works flawlessly. However I have not tried Firebug on the server desktop. I would assume it's still issuing a 401 status code yet returning the content anyway. See Update #2. The application is using Anonymous Authentication. The application is written in .NET 4.0 Asp.Net using the MVC framework. Static content works fine, example: http://server.com/content/image.jpg Sysinternals procmon returns these 2 results for each request: FAST IO DISALLOWED and PATH NOT FOUND. I have 2 other MVC apps running fine on the same server. I have checked the security on the folders and they all match. App runs fine on a Server 2008 IIS 7.0 box. Nothing shows up in the Event log on the server related to this. Pulling my hair out here, any troubleshooting tips? UPDATE #1: This just get's more WTF as I dig. If I click on the Application in IIS Manager - Error Pages - Edit Feature Settings select Detailed Errors, the app works remotely. Not leaving this on, so problem is not solved yet, its just more confusing. UPDATE #2: Using Firebug, I see that the Status is still 401 Unauthorized, but the Response is returning the application's correct HTML. UPDATE #3 Playing around with Failed Request Tracing, here is the WARNING Request Trace that is causing the 401: ModuleName ManagedPipelineHandler Notification 128 HttpStatus 401 HttpReason Unauthorized HttpSubStatus 0 ErrorCode 0 ConfigExceptionInfo Notification EXECUTE_REQUEST_HANDLER ErrorCode The operation completed successfully. (0x0) Update #4 Regular IIS log is showing this: #Software: Microsoft Internet Information Services 7.5 #Version: 1.0 #Date: 2010-07-20 19:17:22 #Fields: date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) sc-status sc-substatus sc-win32-status time-taken 2010-07-20 19:17:22 10.10.1.10 GET /Purchasing/Home - 80 - 10.10.1.12 Mozilla/5.0+(Windows;+U;+Windows+NT+6.1;+en-US;+rv:1.9.2.6)+Gecko/20100625+Firefox/3.6.6 401 0 0 4414

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• Postfix: How to apply header_checks only for specific Domains?

  - by Lukas

  Basically what I want to do is rewriting the From: Header, using header_checks, but only if the mail goes to a certain domain. The problem with header_check is, that I can't check for a combination of To: and From: Headers. Now I was wondering if it was possible to use the header_checks in combination with smtpd_restriction_classes or something similar. I've found a lot information about header_checks and multiple header fields, when searching the net. All of them basically telling me, that one can't combine two header for checking. But I didn't find any information if it was possible to only do a header check if a condition (eg. mail goes to example.com) was met. Edit: While doing some more Research I've found the following article which suggests to add a Service in postfix master.cf, use a transportmap to pass mails for the Domain to that service and have a separate header_check defined with -o. The thing is that I can't get it to work... What I did so far is adding the Service to the master.cf: example unix - - n - - smtpd -o header_checks=regexp:/etc/postfix/check_headers_example Adding the followin Line to the transportmap: example.com example: Last but not least I have two regexp-files for header checks, one for the newly added service, and one to redirect answers to the rewritten domain. check_headers_example: /From:(.*)@mydomain.ain>(.*)/ REPLACE From:[email protected]>$2 Obviously if someone answers, the mail would go to nirvana, so I have the following check_headers defined in the main postfix process: /To:(.*)<(.*)@mydomain.example.com>(.*)/ REDIRECT [email protected]$2 Somehow the Transport is ignored. Any help is appreciated. Edit 2: I'm still stuck... I did try the following: smtpd_restriction_classes = header_rewrite header_rewrite = regexp:/etc/postfix/rewrite_headers_domain smtpd_recipient_restrictions = (some checks) check_recipient_access hash:/etc/postfix/rewrite_table, (more checks) In the rewrite_table the following entries exist: /From:(.*)@mydomain.ain>(.*)/ REPLACE From:[email protected]>$2 All it gets me is a NOQUEUE: reject: 451 4.3.5 Server configuration error. I couldn't find any resources on how you would do that but some people saying it wasn't possible. Edit 3: The reason I asked this question was, that we have a customer (lets say customer.com) who uses some aliases that will forward mail to a domain, let's say example.com. The mailserver at example.com does not accept any mail from an external server that come from a sender @example.com. So all mails that are written from example.com to [email protected] will be rejected in the end. An exception on example.com's mailserver is not possible. We didn't really solve this problem, but will try to work around it by using lists (mailman) instead of aliases. This is not really nice though, nor a real solution. I'd appreciate all suggestions how this could be done in a proper way.

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• Sent items listed by sender's name (my name!) not recipient in Outlook for Mac 2011

  - by user568458

  Outlook 2011 on a Mac (OSX7 Lion), on a (mostly PC) office network using Microsoft Exchange server. In Outlook 2011, in the network "Sent Items" folder, all emails are listed showing the sender's name (my name), not the recipients' names. That means every single email is headed with my own name, like this: My Name 08/09/2012 Some subject line [flag] My Name 08/09/2012 Re: Another subject line [flag] My Name 07/09/2012 Re: different subject line [flag] My Name 07/09/2012 different subject line [flag] ...and so on. There's no clue at all as to who these emails were to, until I open each and every one. I guess it's reassuring to be told that every email that I sent was sent by me... and if I was ever to forget my own name while browsing my sent emails folder, it'd be super useful... But it's not very helpful for navigating sent emails. Is this normal for Office for Mac 2011? How can I fix this, so that the list shows the recipients' names instead of endlessly reminding me of my own name? Things I've found while researching this: This can also happen in Outlook for Windows. On Windows, it's easily fixed by resetting the field. That method doesn't work on Mac because the fields can't be selected separately. It seems this can also happen in Apple Mail too, and a lot of people seem stumped by this. I can't find anything on this specific to Outlook 2011 or Outlook for Mac in general. A simple guide on how to fix this would be the best answer, but I'd also welcome any knowledgable thoughts from Microsoft Exchange Server people on whether this sounds like an Outlook settings issue which I can fix on my machine, or some issue relating to how the Mac gets data from the server and network. The fact that Apple Mail users have encountered the same issue with no apparent fix makes me think the problem might be in the network rather than the mail client - but that's way beyond my limited knowledge of these things. I don't know whether the local ("On my computer") Sent Items folder has the same problem, as it's configured so that no emails except drafts are ever stored in these local folders. Drafts saved locally are listed by recipient as expected.

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• UNIX Question to b answered??? [closed]

  - by Nits

  Create a tree structure named ‘training’ in which there are 3 subdirectories – ‘level 1’,’ level2’ and ‘cep’. Each one is again further divided into 3. The ‘level 1’ is divided into ‘sdp’, ‘re’ and ‘se’. From the subdirectory ‘se’ how can one reach the home directory in one step and also how to navigate to the subdirectory ‘sdp’ in one step? Give the commands, which do the above actions? How will you copy a directory structure dir1 to dir2 ? (with all the subdirectories) How can you find out if you have the permission to send a message? Find the space occupied ( in Bytes) by the /home directory including all its subdirectories. What is the command for printing the current time in 24-hour format? What is the command for printing the year, month, and date with a horizontal tab between the fields? Create the following files: chapa, chapb, chapc, chapd, chape, chapA, chapB, chapC, chapD, chapE, chap01, chap02, chap03, chap04, chap05, chap11, chap12, chap13, chap14, and chap15. With reference to question 7, What is the command for listing all files ending in small letters? With reference to question 7, What is the command for listing all files ending in capitals? With reference to question 7, What is the command for listing all files whose last but one character is 0? With reference to question 7, What is the command for listing all files which end in small letters but not ‘a’ and ‘c’? In an organisation one wants to know how many programmers are there. The employee data is stored in a file called ‘personnel’ with one record per employee. Every record has field for designation. How can grep be used for this purpose? In the organisation mentioned in question 12 how can sed be used to print only the records of all employees who are programmers. In the organisation mentioned in question 12 how can sed be used to change the designation ‘programmer’ to ‘software professional’ every where in the ‘personnel’ file Find out about the sleep command and start five jobs in the background, each one sleeping for 10 minutes. How do you get the status of all the processes running on the system? i.e. using what option?

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• Holding off Windows 2000/3 Server in Shutdown

  - by user1668993

  We have a C# VS2010 application running on a Windows 2000 Server box (there is also a Windows 2003 Server box) as pretty much the only application running. We remove power from the box. There is a short duration battery (maybe 3 minutes of power) which then waits 10 seconds and then decides things are coming down and notifies Windows that it needs to shut down. Windows sends a CTRL_SHUTDOWN_EVENT event to the application which fields it and tries to keep Windows from going down for a while to let another computer which communicates with this one time to do some file work on the first computer. It does this by a timing loop and after the loop is over, it exits gracefully and the computer shuts down. Nice plan but it doesn't work. The application gets to maybe 20 seconds and the application is forcibly killed by Windows and Windows shuts down. At 90 seconds, the hardware firmware running the battery turns off power to the computer. I have tried searching to find out how to hold off Windows for a bit of time. I tried creating (it wasn't there) the HKEY_LOCAL_MACHINE subtree: \SYSTEM\CurrentControlSet\Control\WaitToKillAppTimeout registry key to 60000 but though it seemed to keep the popup from happening, Windows itself died at about the same amount of time -- we think without having the opportunity to shut itself down gracefully. Maybe the registry key worked but wasn't enough. Basically I have an "ill-mannered" application which is refusing to shut down (for the best of reasons) and without the registry key thing, Windows eventually shuts it down anyway and then shuts itself down. With the registry change, we think what is happening is that Windows doesn't shut down the application but Windows itself is killed suddenly without shutting down but power is still not pulled for about another minute, and then power is pulled. So maybe we have layers here. First there is how long the application tries to stay open. Then there is how long Windows is prepared to allow it to stay open. Then there is ... something... which kills windows. Then there is the power loss. Anyone have any ideas how we can get windows to stay open and in operation say to 70 seconds instead of about 20? Is our registry key right, but not enough? Is there some additional key we need to set to determine how long after windows is notified of a shutdown before it just kills itself? Thanks in advance.

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• Python: how do I install SciPy on 64 bit Windows?

  - by Peter Mortensen

  How do I install SciPy on my system? Update 1: for the NumPy part (that SciPy depends on) there is actually an installer for 64 bit Windows: numpy-1.3.0.win-amd64-py2.6.msi (is direct download URL, 2310144 bytes). Running the SciPy superpack installer results in this message in a dialog box: "Cannot install. Python version 2.6 required, which was not found in the registry." I already have Python 2.6.2 installed (and a working Django installation in it), but I don't know about any Registry story. The registry entries seems to already exist: REGEDIT4 [HKEY_LOCAL_MACHINE\SOFTWARE\Python] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Help] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Help\Main Python Documentation] @="D:\\Python262\\Doc\\python262.chm" [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath] @="D:\\Python262\\" [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\InstallPath\InstallGroup] @="Python 2.6" [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\Modules] [HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.6\PythonPath] @="D:\\Python262\\Lib;D:\\Python262\\DLLs;D:\\Python262\\Lib\\lib-tk" What I have done so far: Step 1 Downloaded the NumPy superpack installer numpy-1.3.0rc2-win32-superpack-python2.6.exe (direct download URL, 4782592 bytes). Running this installer resulted in the same message, "Cannot install. Python version 2.6 required, which was not found in the registry.". Update: there is actually an installer for NumPy that works - see beginning of the question. Step 2 Tried to install NumPy in another way. Downloaded the zip package numpy-1.3.0rc2.zip (direct download URL, 2404011 bytes), extracted the zip file in a normal way to a temporary directory, D:\temp7\numpy-1.3.0rc2 (where setup.py and README.txt is). I then opened a command line window and: d: cd D:\temp7\numpy-1.3.0rc2 setup.py install This ran for a long time and also included use of cl.exe (part of Visual Studio). Here is a nearly 5000 lines long transcript (230 KB). This seemed to work. I can now do this in Python: import numpy as np np.random.random(10) with this result: array([ 0.35667511, 0.56099423, 0.38423629, 0.09733172, 0.81560421, 0.18813222, 0.10566666, 0.84968066, 0.79472597, 0.30997724]) Step 3 Downloaded the SciPy superpack installer, scipy-0.7.1rc3- win32-superpack-python2.6.exe (direct download URL, 45597175 bytes). Running this installer resulted in the message listed in the beginning Step 4 Tried to install SciPy in another way. Downloaded the zip package scipy-0.7.1rc3.zip (direct download URL, 5506562 bytes), extracted the zip file in a normal way to a temporary directory, D:\temp7\scipy-0.7.1 (where setup.py and README.txt is). I then opened a command line window and: d: cd D:\temp7\scipy-0.7.1 setup.py install This did not achieve much - here is a transcript (about 95 lines). And it fails: >>> import scipy as sp2 Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named scipy Platform: Python 2.6.2 installed in directory D:\Python262, Windows XP 64 bit SP2, 8 GB RAM, Visual Studio 2008 Professional Edition installed. The startup screen of the installed Python is: Python 2.6.2 (r262:71605, Apr 14 2009, 22:46:50) [MSC v.1500 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> Value of PATH, result from SET in a command line window: Path=D:\Perl64\site\bin;D:\Perl64\bin;C:\Program Files (x86)\PC Connectivity Solution\;D:\Perl\site\bin;D:\Perl\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;d:\Program Files (x86)\WinSCP\;D:\MassLynx\;D:\Program Files (x86)\Analyst\bin;d:\Python262;d:\Python262\Scripts;D:\Program Files (x86)\TortoiseSVN\bin;D:\Program Files\TortoiseSVN\bin;C:\WINDOWS\system32\WindowsPowerShell\v1.0;D:\Program Files (x86)\IDM Computer Solutions\UltraEdit\

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• Summer Programming Plans

  - by Gabe

  I've wanted to start "hacking" for many months now. But I put it off in favor of school and other things. Now, though, I'm free for the summer and want to learn as much as I can. I have a rough idea of what I want to try my hand at, but need some guidance as to what specifically - and how - I should learn. This is my plan so far: 1) Get good at programming in general. I plan to read up on how to think/work like a programmer. I'm waiting for the Pragmatic Programmer to arrive, which will be the first book I read. Q: What other books/ebooks should I look at? What more can I do here? 2) Learn/Improve at HTML/CSS. My first project will be to make a personal website/blog for myself using HTML and CSS. ----Then I hope to write/design articles like Dustin Curtis. After I finish this (and learn a programming language) I'll try to create user-based a user-focused website. Q: It's my understanding that just trying to design/manage websites is a good way to learn/improve at HTML/CSS. Is that all correct? 3) Try music development. This might be a sort of stretch for stackoverflow, but I'm interested in mixing/making techno songs. (Think Justice, or Daft Punk, or MSTRKRFT.) Q: I have a Mac. Any ideas on how I could start/learn music making? Any programs I should download, for instance? 4) My main goal: Learning a web development language/framework. I'm a year into learning/using C++. But what I really want to do is develop websites and web apps. I've searched online, and there seems to be great debate over which language/framework to learn first (and which is best). I think I've narrowed it down to three: Ruby (Rails), Python (Django), and PHP (?). Q #1: Which should I learn and use first? (Reasons?) Q #2: One reason I was leaning towards PHP is that I'm taking a PHP development course next semester. Learning it now would make that course easy. If PHP was not the answer to Q #1, is it worth learning both? Or, would it be better to just focus on PHP for this summer and next semester, and then transition thereafter to a better language? 5) iPhone/iPad Programming (Maybe). I've a number of simple, useful app ideas that I'd like to eventually get too. I just bought a Mac, as well as a few app development books. Q #1: Am I spreading myself thin trying to learn all of the above, and objective-C? Q #2: How much harder/easier is objective-C compared to the above languages? Also, how easy is it to learn obj-C after learning a web development language (and some C++)? Q #3: Yes or no? Should I go for it, or just keeep with #1-4 for now? Also: If you have any tips on how I should learn (or how you learned to hack), I'm all ears. I'd be especially interested in how you planned out learning: did you just hack whenever you felt like it, or did you "study" the language a few hours a day, or something else? Thanks so much, guys.

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• How to retrieve multiple anchors URLs with jQuery ?

  - by pierre-guillaume-degans

  Hello, I would like to create a javascript playlist with Jplayer. This is a nice and easy tool, however I never coded with javascript. Look at the javascript used in this demo. It uses a list to store MP3 and Ogg files : var myPlayList = [ {name:"Tempered Song",mp3:"http://www.miaowmusic.com/mp3/Miaow-01-Tempered-song.mp3",ogg:"http://www.miaowmusic.com/ogg/Miaow-01-Tempered-song.ogg"}, {name:"Hidden",mp3:"http://www.miaowmusic.com/mp3/Miaow-02-Hidden.mp3",ogg:"http://www.miaowmusic.com/ogg/Miaow-02-Hidden.ogg"}, {name:"Lentement",mp3:"http://www.miaowmusic.com/mp3/Miaow-03-Lentement.mp3",ogg:"http://www.miaowmusic.com/ogg/Miaow-03-Lentement.ogg"}, {name:"Lismore",mp3:"http://www.miaowmusic.com/mp3/Miaow-04-Lismore.mp3",ogg:"http://www.miaowmusic.com/ogg/Miaow-04-Lismore.ogg"}, {name:"The Separation",mp3:"http://www.miaowmusic.com/mp3/Miaow-05-The-separation.mp3",ogg:"http://www.miaowmusic.com/ogg/Miaow-05-The-separation.ogg"}, {name:"Beside Me",mp3:"http://www.miaowmusic.com/mp3/Miaow-06-Beside-me.mp3",ogg:"http://www.miaowmusic.com/ogg/Miaow-06-Beside-me.ogg"}, ]; So for now, I just use a django template (but it could be another template engine) to create this variable. However I would like to create this list (myPlayList) dynamically with a javascript function which would retrieve the MP3 urls and the Ogg vorbis URLs from the HTML code. Thus, from this HTML code...: <body> <article id="track-0"> <h1>lorem ipsum</h1> <ul> <li><a href="...">Mp3</a></li> <li><a href="...">Vorbis</a></li> <li><a href="...">Flac</a></li> </ul> </article> <article id="track-1"> <h1>lorem ipsum</h1> <ul> <li><a href="...">Mp3</a></li> <li><a href="...">Vorbis</a></li> <li><a href="...">Flac</a></li> </ul> </article> <article id="track-2"> <h1>lorem ipsum</h1> <ul> <li><a href="...">Mp3</a></li> <li><a href="...">Vorbis</a></li> <li><a href="...">Flac</a></li> </ul> </article> </body> ... I need to build a javascript list like this (where each index of the list represents the track-ID in the HTML: var files = [ {mp3:"...", ogg:"..."}, {mp3:"...", ogg:"..."}, {mp3:"...", ogg:"..."}, ]; Please excuse me for my ugly english. If you need more informations just tell me. Thank you. :-)

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• Safely defining variables for public callback functions in javascript

  - by djreed

  I am working with the YouTube iFrame API to embed a number of videos on a page. Documentation here: https://developers.google.com/youtube/iframe_api_reference#Requirements In summary, you load the API asynchronously using the following snippet: var tag = document.createElement('script'); tag.src = "http://www.youtube.com/player_api"; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); Once loaded, the API fires the predefined callback function onYouTubePlayerAPIReady. For additional context: I am defining a library file for this in Google Closure. I am providing a namespace: goog.provide('yt.video'); I then use goog.exportSymbol so that the API can find the function. That all works fine. My challenge is that I would like to pass 2 variables to the callback function. Is there any way to do this without defining these 2 variables in the context of the window object? goog.provide('yt.video'); goog.require('goog.dom'); yt.video = function(videos, locales) { this.videos = videos; this.captionLocales = locales; this.init(); }; yt.video.prototype.init = function() { var tag = document.createElement('script'); tag.src = "http://www.youtube.com/player_api"; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); }; /* * Callback function fired when YT API is ready * This is exported using goog.exportSymbol in another file and * is being fired by the API properly. */ yt.video.prototype.onPlayerReady = function(videos, locales) { window.console.log('this :' + this); //logs window window.console.log('this.videos : ' + this.videos); //logs undefined /* * Video settings from Django variable */ for(i=0; i<this.videos.length; i++) { var playerEvents = {}; var embedVars = {}; var el = this.videos[i].el; var playerVid = this.videos[i].vid; var playerWidth = this.videos[i].width; var playerHeight = this.videos[i].height; var captionLocales = this.videos[i].locales; if(this.videos[i].playerVars) var embedVars = this.videos[i].playerVars; } if(this.videos[i].events) { var playerEvents = this.videos[i].events; } /* * Show captions by default */ if(goog.array.indexOf(captionLocales, 'es') >= 0) { embedVars.cc_load_policy = 1; }; new YT.Player(el, { height: playerHeight, width: playerWidth, videoId: playerVid, events: playerEvents, playerVars: embedVars }); }; }; To intialize this, I am currently using the following within a self-executing anonymous function: var videos = [ {"vid": "video_id", "el": "player-1", "width": 640, "height": 390, "locales": ["es", "fr"], "events": {"onStateChange": stateChanged}}, {"vid": "video_id", "el": "player-2", "locales": ["es", "fr"], "width": 640, "height": 390} ]; var locales = ['es']; var videoTemplate = new yt.video(videos, locales);

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• What language/framework (technology) to use for website (flash games portal)

  - by cripox

  Hello, I know there are a lot of similar questions on the net, but because I am a newbie in web development I didn't find the solution for my specific problem. I am planing on creating a flash games portal from scratch. It is a big chance that there will be big traffic from the beginning (millions of pageviews). I want to reduce the server costs as much as possible but in the same time to not be tide to an expensive contract as there is a chance that the project will not be as successfully as I want and in that case the money would be very little. The question is : what technology to use? I don't know any web dev technology yet so it doesn't matter what I will learn. My web dev experience is a little php 8 years ago, and from then I programmed in C++ / Java- game and mobile development. I like Java and C syntax and language very much and I tend to dislike dynamic typing or non robust scripting (like php)- but I can get along if these are the best choices. The candidates are now: - Grails (my best for now) Ruby on Rails Cake PHP Other technologies (Google App Engine, Python/Django etc...) I was considering at first using pure C and compiling the web app in the server- just to squeeze more from the servers, but soon I understand that this is overkill. Next my eyes came on Ruby - as there is a lot of buzz for it's easiness of use. Next I discovered Grails and looked at Java because it is said that it is "faster". But I don't know what this "Faster" really means on my needs, so here comes the first question: 1) What will be my biggest consumption on the server, other than bandwidth, for a lot of flash content requests? Is it memory? I heard that Java needs a lot of memory, but is faster. Is it CPU? I am planning to take some daily VPS.NET nodes at first, to see if there is a demand, and if the "spike" is permanent to move to a dedicated server (serverloft.com has some good offers), else to remain with less nodes. I was also considering developing in Google App Engine- cheap or free hosting to use at first - so I can test my assumption- and also very easy to use (no need for sys administration) but the costs became high if used more ( 3 million games played / month .. x mb/ each). And the issue with Google is that it looks me in this technology. My other concern is scalability (not only for traffic/users, but as adding functionality) My plans are to release a functional site in just 4 weeks (just the basics frontend and some quick basic backend - so I can be able to modify some things and add games manually) - but then to raise it and add more things to it. I am planning to take a little different approach than other portals so I need to write it from scratch (a script will not do). 2) Will Grails take much more resources than RoR or Php server wise? I heard that making it on Java stack will be hardware expensive and is overkill if you don't make a bank application. My application will not be very complex (I hope and i will try to) but will have a lot of traffic. I also took in account using CDN for files, but the cheapest CDN found was 5c/GB (vps.net) and the cost per gb on serverloft (http://www.serverloft.com/dedizierte-server/server-details.php?products=4) is only 1.79 cents/GB and comes with the other resources either. I am new to this domain (web). I am learning the ropes and searching on the web for ~half of year but don't have any really practical experience, so I know that I must have some naive thinking and other issues that i don't know from now, so please give me any advice you want regarding anything, not just the specific questions asked. And thank you so much for such great community!

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• SQL SERVER – Enumerations in Relational Database – Best Practice

  - by pinaldave

  Marko Parkkola This article has been submitted by Marko Parkkola, Data systems designer at Saarionen Oy, Finland. Marko is excellent developer and always thinking at next level. You can read his earlier comment which created very interesting discussion here: SQL SERVER- IF EXISTS(Select null from table) vs IF EXISTS(Select 1 from table). I must express my special thanks to Marko for sending this best practice for Enumerations in Relational Database. He has really wrote excellent piece here and welcome comments here. Enumerations in Relational Database This is a subject which is very basic thing in relational databases but often not very well understood and sometimes badly implemented. There are of course many ways to do this but I concentrate only two cases, one which is “the right way” and one which is definitely wrong way. The concept Let’s say we have table Person in our database. Person has properties/fields like Firstname, Lastname, Birthday and so on. Then there’s a field that tells person’s marital status and let’s name it the same way; MaritalStatus. Now MaritalStatus is an enumeration. In C# I would definitely make it an enumeration with values likes Single, InRelationship, Married, Divorced. Now here comes the problem, SQL doesn’t have enumerations. The wrong way This is, in my opinion, absolutely the wrong way to do this. It has one upside though; you’ll see the enumeration’s description instantly when you do simple SELECT query and you don’t have to deal with mysterious values. There’s plenty of downsides too and one would be database fragmentation. Consider this (I’ve left all indexes and constraints out of the query on purpose). CREATE TABLE [dbo].[Person] ( [Firstname] NVARCHAR(100), [Lastname] NVARCHAR(100), [Birthday] datetime, [MaritalStatus] NVARCHAR(10) ) You have nvarchar(20) field in the table that tells the marital status. Obvious problem with this is that what if you create a new value which doesn’t fit into 20 characters? You’ll have to come and alter the table. There are other problems also but I’ll leave those for the reader to think about. The correct way Here’s how I’ve done this in many projects. This model still has one problem but it can be alleviated in the application layer or with CHECK constraints if you like. First I will create a namespace table which tells the name of the enumeration. I will add one row to it too. I’ll write all the indexes and constraints here too. CREATE TABLE [CodeNamespace] ( [Id] INT IDENTITY(1, 1), [Name] NVARCHAR(100) NOT NULL, CONSTRAINT [PK_CodeNamespace] PRIMARY KEY ([Id]), CONSTRAINT [IXQ_CodeNamespace_Name] UNIQUE NONCLUSTERED ([Name]) ) GO INSERT INTO [CodeNamespace] SELECT 'MaritalStatus' GO Then I create a table that holds the actual values and which reference to namespace table in order to group the values under different namespaces. I’ll add couple of rows here too. CREATE TABLE [CodeValue] ( [CodeNamespaceId] INT NOT NULL, [Value] INT NOT NULL, [Description] NVARCHAR(100) NOT NULL, [OrderBy] INT, CONSTRAINT [PK_CodeValue] PRIMARY KEY CLUSTERED ([CodeNamespaceId], [Value]), CONSTRAINT [FK_CodeValue_CodeNamespace] FOREIGN KEY ([CodeNamespaceId]) REFERENCES [CodeNamespace] ([Id]) ) GO -- 1 is the 'MaritalStatus' namespace INSERT INTO [CodeValue] SELECT 1, 1, 'Single', 1 INSERT INTO [CodeValue] SELECT 1, 2, 'In relationship', 2 INSERT INTO [CodeValue] SELECT 1, 3, 'Married', 3 INSERT INTO [CodeValue] SELECT 1, 4, 'Divorced', 4 GO Now there’s four columns in CodeValue table. CodeNamespaceId tells under which namespace values belongs to. Value tells the enumeration value which is used in Person table (I’ll show how this is done below). Description tells what the value means. You can use this, for example, column in UI’s combo box. OrderBy tells if the values needs to be ordered in some way when displayed in the UI. And here’s the Person table again now with correct columns. I’ll add one row here to show how enumerations are to be used. CREATE TABLE [dbo].[Person] ( [Firstname] NVARCHAR(100), [Lastname] NVARCHAR(100), [Birthday] datetime, [MaritalStatus] INT ) GO INSERT INTO [Person] SELECT 'Marko', 'Parkkola', '1977-03-04', 3 GO Now I said earlier that there is one problem with this. MaritalStatus column doesn’t have any database enforced relationship to the CodeValue table so you can enter any value you like into this field. I’ve solved this problem in the application layer by selecting all the values from the CodeValue table and put them into a combobox / dropdownlist (with Value field as value and Description as text) so the end user can’t enter any illegal values; and of course I’ll check the entered value in data access layer also. I said in the “The wrong way” section that there is one benefit to it. In fact, you can have the same benefit here by using a simple view, which I schema bound so you can even index it if you like. CREATE VIEW [dbo].[Person_v] WITH SCHEMABINDING AS SELECT p.[Firstname], p.[Lastname], p.[BirthDay], c.[Description] MaritalStatus FROM [dbo].[Person] p JOIN [dbo].[CodeValue] c ON p.[MaritalStatus] = c.[Value] JOIN [dbo].[CodeNamespace] n ON n.[Id] = c.[CodeNamespaceId] AND n.[Name] = 'MaritalStatus' GO -- Select from View SELECT * FROM [dbo].[Person_v] GO This is excellent write up byMarko Parkkola. Do you have this kind of design setup at your organization? Let us know your opinion. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Best Practices, Database, DBA, Readers Contribution, Software Development, SQL, SQL Authority, SQL Documentation, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Creating Descriptive Flex Field (DFF) Bean in OAF

  - by Manoj Madhusoodanan

  In this blog I will explain how to add a custom DFF in a custom OAF page.I am using XXCUST_DFF_DEMO table to store the DFF values.Also I am using custom DFF named XXCUST_PERSON_DFF.  Following steps needs to be performed to create this solution. 1) Register the custom table in Oracle Application2) Register the DFF3) Define the segments of DFF4) Create BC4J components for OAF and OA Page which holds the DFF I will explain the steps in detail below. Register the custom table in Oracle Application I am using custom DFF here so I have to register the custom table which I am going to capture the values.Please click here to see the table script. I am using the AD_DD package to register the custom table.Please click here to see the table registration script. Please verify the table has registered successfully. Navigation: Application Developer > Application > Database > Table Table has registered successfully. Register the DFF Next step is to register the DFF. Navigate to Application Developer > Flex Field > Descriptive > Register. Give details as below. Click on Reference Fields and set the Reference Field as ATTRIBUTE_CATEGORY. Click on the Columns button to verify that the columns ATTRIBUTE_CATEGORY,ATTRIBUTE1 .... ATTRIBUTE30 are enabled. DFF has registered successfully. Define the segments of DFF Here I am going to define the segments of the DFF.Navigate to Application Developer > Flex Field > Descriptive > Segments.Query for "XXCUST - Person DFF". Uncheck "Freeze Flexfield Definition". In my DFF the reference field I want to display a value set which has values "Permanent" and "Contractor". So define a value set  XXCUST_EMPLOYMENT_TYPE. Navigation: Application Developer > Flex Field > Descriptive > Validation > Sets After that assign the values to above created value sets. Navigation: Application Developer > Flex Field > Descriptive > Validation > Values Assign XXCUST_EMPLOYMENT_TYPE to Context Field Valueset. Setup the Context Field Values based on below table. Context Code Segments Global Data Elements Phone Number Email Fax Contractor Manager Extension Number CSP Name Permanent Extension Number Access Card Number Phone Number,Email and Fax displays always.When user choose Context Value as "Contractor" Manager Extension Number and CSP Name will show.In case of "Permanent" Extension Number and Access Card Number will show.  Assign value set also as follows. For Global Data Elements following are the segments. For "Contractor" following are the segments. For "Permanent" following are the segments. Check the "Freeze Flexfield Definition" check box and save.Standard concurrent program "Flexfield View Generator" will generate XXCUST_DFF_DEMO_DFV view which we mentioned in the DFF registration step.  Now the DFF has created successfully and ready to use. Create BC4J components for OAF and OA Page which holds the DFF Create the BC4J components ( EO,VO and AM) appropriately.Create the page based on the created VO.For DFF create an item of type "flex" with following property.  Note: You cannot create a flex item directly under a messageComponentLayout region, but you can create a messageLayout region under the messageComponentLayout region and add the flex item under the messageLayout region. In the Segment List property give the segment names which you want to display.The syntax of this is Global Data Elements|SEGMENT 1|...|SEGMENT N||[Context Code1]|SEGMENT 1|...|SEGMENT N||[Context Code2]|SEGMENT 1|...|SEGMENT N||... Eg: Global Data Elements|Phone Number|Email|Fax||Contractor|Manager Extension Number|CSP Name||Permanent|Extension Number|Access Card Number When you change the Context Value corresponding segments will display automatically by PPR in the page. You can attach partial action to the DFF bean programmatically so that you can identify the action related to DFF. pageContext.getParameter(EVENT_PARAM) will return "FLEX_CONTEXT_CHANGEDPersonDFF" when you change the DFF Context. Page is ready and you can test. When you choose "Contract" following output you can see. When you choose "Permanent" following output you can see.  Give proper values and press Apply.You can see values populated in the table.

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• Adopting DBVCS

  - by Wes McClure

  Identify early adopters Pick a small project with a small(ish) team.  This can be a legacy application or a green-field application. Strive to find a team of early adopters that will be eager to try something new. Get the team on board! Research Research the tool(s) that you want to use.  Some tools provide all of the features you would need while some only provide a slice of the pie.  DBVCS requires the ability to manage a set of change scripts that update a database from one version to the next.  Ideally a tool can track database versions and automatically apply updates.  The change script generation process can be manual, but having diff tools available to automatically generate it can really reduce the overhead to adoption.  Finally, an automated tool to generate a script file per database object is an added bonus as your version control system can quickly identify what was changed in a commit (add/del/modify), just like with code changes. Don’t settle on just one tool, identify several.  Then work with the team to evaluate the tools.  Have the team do some tests of the following scenarios with each tool: Baseline an existing database: can the migration tool work with legacy databases?  Caution: most migration platforms do not support baselines or have poor support, especially the fad of fluent APIs. Add/drop tables Add/drop procedures/functions/views Alter tables (rename columns, add columns, remove columns) Massage data – migrations sometimes involve changing data types that cannot be implicitly casted and require you to decide how the data is explicitly cast to the new type.  This is a requirement for a migrations platform.  Think about a case where you might want to combine fields, or move a field from one table to another, you wouldn’t want to lose the data. Run the tool via the command line.  If you cannot automate the tool in Continuous Integration what is the point? Create a copy of a database on demand. Backup/restore databases locally. Let the team give feedback and decide together, what tool they would like to try out. My recommendation at this point would be to include TSqlMigrations and RoundHouse as SQL based migration platforms.  In general I would recommend staying away from the fluent platforms as they often lack baseline capabilities and add overhead to learn a new API when SQL is already a very well known DSL.  Code migrations often get messy with procedures/views/functions as these have to be created with SQL and aren’t cross platform anyways.  IMO stick to SQL based migrations. Reconciling Production If your project is a legacy application, you will need to reconcile the current state of production with your development databases.  Find changes in production and bring them down to development, even if they are old and need to be removed.  Once complete, produce a baseline of either dev or prod as they are now in sync.  Commit this to your VCS of choice. Add whatever schema changes tracking mechanism your tool requires to your development database.  This often requires adding a table to track the schema version of that database.  Your tool should support doing this for you.  You can add this table to production when you do your next release. Script out any changes currently in dev.  Remove production artifacts that you brought down during reconciliation.  Add change scripts for any outstanding changes in dev since the last production release.  Commit these to your repository.   Say No to Shared Dev DBs Simply put, you wouldn’t dream of sharing a code checkout, why would you share a development database?  If you have a shared dev database, back it up, distribute the backups and take the shared version offline (including the dev db server once all projects are using DB VCS).  Doing DB VCS with a shared database is bound to cause problems as people won’t be able to easily script out their own changes from those that others are working on.   First prod release Copy prod to your beta/testing environment.  Add the schema changes table (or mechanism) and do a test run of your changes.  If successful you can schedule this to be run on production.   Evaluation After your first release, evaluate the pain points of the process.  Try to find tools or modifications to existing tools to help fix them.  Don’t leave stones unturned, iteratively evolve your tools and practices to make the process as seamless as possible.  This is why I suggest open source alternatives.  Nothing is set in stone, a good example was adding transactional support to TSqlMigrations.  We ran into situations where an update would break a database, so I added a feature to do transactional updates and rollback on errors!  Another good example is generating change scripts.  We have been manually making these for months now.  I found an open source project called Open DB Diff and integrated this with TSqlMigrations.  These were things we just accepted at the time when we began adopting our tool set.  Once we became comfortable with the base functionality, it was time to start automating more of the process.  Just like anything else with development, never be afraid to try to find tools to make your job easier!   Enjoy -Wes

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• ViewBag dynamic in ASP.NET MVC 3 - RC 2

  - by hajan

  Earlier today Scott Guthrie announced the ASP.NET MVC 3 - Release Candidate 2. I installed the new version right after the announcement since I was eager to see the new features. Among other cool features included in this release candidate, there is a new ViewBag dynamic which can be used to pass data from Controllers to Views same as you use ViewData[] dictionary. What is great and nice about ViewBag (despite the name) is that its a dynamic type which means you can dynamically get/set values and add any number of additional fields without need of strongly-typed classes. In order to see the difference, please take a look at the following examples. Example - Using ViewData Controller public ActionResult Index() {     List<string> colors = new List<string>();     colors.Add("red");     colors.Add("green");     colors.Add("blue");                 ViewData["listColors"] = colors;     ViewData["dateNow"] = DateTime.Now;     ViewData["name"] = "Hajan";     ViewData["age"] = 25;     return View(); } View (ASPX View Engine) <p>     My name is     <b><%: ViewData["name"] %></b>,     <b><%: ViewData["age"] %></b> years old.     <br />         I like the following colors: </p> <ul id="colors"> <% foreach (var color in ViewData["listColors"] as List<string>){ %>     <li>        <font color="<%: color %>"><%: color %></font>    </li> <% } %> </ul> <p>     <%: ViewData["dateNow"] %> </p> (I know the code might look cleaner with Razor View engine, but it doesn’t matter right? ;) ) Example - Using ViewBag Controller public ActionResult Index() {     List<string> colors = new List<string>();     colors.Add("red");     colors.Add("green");     colors.Add("blue");     ViewBag.ListColors = colors; //colors is List     ViewBag.DateNow = DateTime.Now;     ViewBag.Name = "Hajan";     ViewBag.Age = 25;     return View(); } You see the difference? View (ASPX View Engine) <p>     My name is     <b><%: ViewBag.Name %></b>,     <b><%: ViewBag.Age %></b> years old.     <br />         I like the following colors: </p> <ul id="colors"> <% foreach (var color in ViewBag.ListColors) { %>     <li>         <font color="<%: color %>"><%: color %></font>     </li> <% } %> </ul> <p>     <%: ViewBag.DateNow %> </p> In my example now I don’t need to cast ViewBag.ListColors as List<string> since ViewBag is dynamic type! On the other hand the ViewData[“key”] is object.I would like to note that if you use ViewData["ListColors"] = colors; in your Controller, you can retrieve it in the View by using ViewBag.ListColors. And the result in both cases is Hope you like it! Regards, Hajan

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• How to deploy Document Set using CAML in SharePoint2010 solution package

  - by ybbest

  In my last post, I showed you how to use Document Set using SharePoint UI in the browser. In this post, I’d like to show you how to create the same Document Set using CAML and SharePoint solution package. You can download the complete solution here. 1. Create the Application Number site column using the SharePoint empty element item template in VS2010 <?xml version="1.0" encoding="utf-8"?> <Elements xmlns="http://schemas.microsoft.com/sharepoint/"> <Field Type="Text" DisplayName="ApplicationNumber" Required="FALSE" EnforceUniqueValues="FALSE" Indexed="FALSE" MaxLength="255" Group="YBBEST" ID="{916bf3af-5ec1-4441-acd8-88ff62ab1b7e}" Name="ApplicationNumber" ></Field> </Elements> 2. Create the Loan Application Form and Loan Contract Form content types. <?xml version="1.0" encoding="utf-8"?> <Elements xmlns="http://schemas.microsoft.com/sharepoint/"> <!-- Parent ContentType: Document (0x0101) --> <ContentType ID="0x0101005dfbf820ce3c49f69c73a00e0e0e53f6" Name="Loan Contract Form" Group="YBBEST" Description="Loan Contract Form" Inherits="TRUE" Version="0"> <FieldRefs> <FieldRef ID="916bf3af-5ec1-4441-acd8-88ff62ab1b7e" Name="ApplicationNumber" DisplayName="ApplicationNumber" /> </FieldRefs> </ContentType> <!-- Parent ContentType: Document (0x0101) --> <ContentType ID="0x010100f3016e3d03454b93bc4d6ab63941c0d2" Name="Loan Application Form" Group="YBBEST" Description="Loan Application Form" Inherits="TRUE" Version="0"> <FieldRefs> <FieldRef ID="916bf3af-5ec1-4441-acd8-88ff62ab1b7e" Name="ApplicationNumber" DisplayName="ApplicationNumber" /> </FieldRefs> </ContentType> </Elements> 3. Create the Loan Application Document Set. 4. Create the Document Set Welcome Page using the SharePoint Module item template. Notes: 1.When creating document set content type , you need to set the  Inherits=”FALSE”  or remove the  Inherits=”TRUE” from the content type definition (default is  Inherits=”FALSE”) . This is the Document Set limitation in the current version of SharePoint2010. Because of this , you also need to manually  attach the event receiver and  Document Set welcome page to your custom Document Set Content Type. 2. Shared Fields are push down only: 3. Not available in SharePoint foundation (only SharePoint Server 2010). 4. You can’t have folders within document sets (you can place document sets in folders though). For a complete limitation and considerations , you can see the references for details. References: Document Set Limitations and Considerations in SharePoint 2010 1 Document Set Limitations and Considerations in SharePoint 2010 2 Document Sets planning (SharePoint Server 2010) Import Document Sets Issue http://msdn.microsoft.com/en-us/library/gg581064.aspx http://channel9.msdn.com/Events/TechEd/NorthAmerica/2010/OSP305 DocumentSet Class

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