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  • How to decouple an app's agile development from a database using BDUF?

    - by Rob Wells
    G'day, I was reading the article "Database as a Fortress" by Dan Chak from the excellent book "97 Things Every Software Architect Should Know" (sanitised Amazon link) which suggests that databases should not be designed using an agile approach. There's an SO question on agile approaches and databases "Agile development and database changes" which has some excellent answers covering agile development approaches. In fact, one of the answers supplies a brilliant idea of what's needed for each update of the DB. ;-) But after reading Dan Chak's article, I am left wondering if an agile approach is really suitable for large scale systems. This of course leads on to the question of how best to decouple an agile approach for the application that is interacting with the BDUF database design without adding complicated translation layers in the final design employed? Any suggestions? cheers,

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  • Display On-Screen Television Graphics During Live Broadcasts

    - by ServAce85
    How and with what software do major television companies display on-screen graphics during their programs? For example: On ESPN, how do they produce the news ticker on the bottom (both graphically and from a source code point of view), create and display the scores of sports, and update and show selected stats on the fly? I've looked everywhere I can think of to find the answer, but I am at a loss. That's where you guys (and girls) come in. I hope you can help shed some light on this subject for me. Thanks in advance.

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  • What is a right way to use servlets?

    - by vikp
    Hi, I'm studying EJB3. I have a session bean which provides services to create/update customer accounts. This session bean offers services on the lines of: public void addCustomer(Customer c); public void updateCustomer(Customer c); Ideally I'd like to have a single servlet: CustomerServlet and it would invoke the session beans that I have listed above. Problem is that I have two JSPs: UpdateAccount.jsp and CreateAccount.jsp. Both of these JSPs have a form with a method POST and action "CustomerServlet". How can I distinguish in a customer servlet which operation I should carry out: createAccount or updateAccount? I guess the alternative is to have a separate servlet for each operation... Thank you

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  • facebook graph api don´t publish to news feed

    - by rizidoro
    hi, im trying to update my news feed on facebook. Im using the new graph api. I can connect to graph, but when i try to publish some content to the feed object, nothing happens. here´s my code: <?php $token = "xxxx"; $fields = "message=test&access_token=$token"; $c = curl_init("http://graph.facebook.com/me/feed"); curl_setopt($c,"CURLOPT_POST", true); curl_setopt($c,"CURLOPT_POSTFIELDS",$fields); $r = curl_exec($c); print_r($r); this returns: {"error":{"type":"QueryParseException","message":"An active access token must be used to query information about the current user."}}1 then I try to pass access_token via GET: $c = curl_init("http://graph.facebook.com/me/feed?access_token=$token"); this returns: {"data":[]}1 Am I doing something wrong? thanks

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  • Syncing with Address Book: Last modified property in ABPerson/ABRecord

    - by Oliver
    I'm syncing data from the Address Book into a Core Data database and I've nearly got it working perfectly. The only issue remaining is checking for changes and modifications on startup and reflecting the changes inside Core Data. Currently, I simply check the ID of each ABRecord and see if it is already in Core Data. Of course, this only works in the case of new contacts and not changed information inside an existing contact. One solution would be to go through each contact already in the database and check each property against the Address Book. The down side of this is that it's really slow. One method that would work is if the ABRecord had a last modified date. I could then store the date inside the Core Data database and check on startup to see if I need to update the contact. However, I can't find anything like this in the documentation. Any ideas?

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  • Why index_merge is not used here using MySQL?

    - by user198729
    Setup: mysql> create table t(a integer unsigned,b integer unsigned); mysql> insert into t(a,b) values (1,2),(1,3),(2,4); mysql> create index i_t_a on t(a); mysql> create index i_t_b on t(b); mysql> explain select * from t where a=1 or b=4; +----+-------------+-------+------+---------------+------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+-------+------+---------------+------+---------+------+------+-------------+ | 1 | SIMPLE | t | ALL | i_t_a,i_t_b | NULL | NULL | NULL | 3 | Using where | +----+-------------+-------+------+---------------+------+---------+------+------+-------------+ Is there something I'm missing? Update mysql> explain select * from t where a=1 or b=4; +----+-------------+-------+------+---------------+------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+-------+------+---------------+------+---------+------+------+-------------+ | 1 | SIMPLE | t | ALL | i_t_a,i_t_b | NULL | NULL | NULL | 1863 | Using where | +----+-------------+-------+------+---------------+------+---------+------+------+-------------+ Version: mysql> select version(); +----------------------+ | version() | +----------------------+ | 5.1.36-community-log | +----------------------+

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  • How to export all changed/added files from Git?

    - by dr Hannibal Lecter
    Hi all! I am very new to Git and I have a slight problem. In SVN [this feels like an Only Fools and Horses story by uncle Albert.."during the war..."] when I wanted to update a production site with my latest changes, I'd do a diff in TSVN and export all the changed/added files between two revisions. As you can imagine, it was easy to get those files to a production site afterwards. However, it seems like I'm unable to find an "export changed files" option in Git. I can do a diff and see the changes, I can get a list of files, but I can't actually export them. Is there a reasonable way to do this? Am I missing something simple? Just to clarify once again, I need to export all the changes between two specific commits. Thanks in advance!

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  • jQuery: Trouble inserting DOM elements

    - by Rosarch
    I want to add a set of lists to the children of another DOM element: var req_subsets = $("#req_subsets"); $.each(subsets, function(index, subset) { var subset_list = $("<ul></ul>"); // add DOM elements to subset_list req_subsets.append(subset_list); }); However, only one DOM element is ever added. This makes me suspect that when I assign a new value to subset_list, the old one is overwritten. If that is the problem, how do I avoid it? If not, what else am I doing wrong? UPDATE: I changed something else, and I'm almost entirely certain that this is fixed.

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  • Problem with Mootools Ajax request and submitting a form

    - by Arwed
    Hello. This is my problem: I have a table with content comming from a database. Now i tryed to realize a way to (a) delete rows from the table (b) edit the content of the row "on the fly". (a) is working perfectly (b) makes my head smoking! Here is the complete Mootools Code: <script type="text/javascript"> window.addEvent('domready', function() { $('edit_hide').slide('hide'); var saf = new Request.HTML( { url: 'termin_safe.php', encoding: 'utf-8', onComplete: function(response) { document.location.href=''; } }); var req = new Request.HTML( { url: 'fuss_response.php', encoding: 'utf-8', onComplete: function(response) { document.location.href=''; } }); var eDit = $('edit_hide'); var eD = new Request.HTML( { url: 'fuss_response_edit.php', update: eDit, encoding: 'utf-8', onComplete: function(response) { $('sst').addEvent( 'click', function(e){ e.stop(); saf.send(); }); } }); $$('input.edit').addEvent( 'click', function(e){ e.stop(); var aID = 'edit_', bID = '', cID = 'ed_'; var deleteID = this.getProperty('id').replace(aID,bID); var editID = $(this.getProperty('id').replace(aID,cID)); eD.send({data : "id=" + deleteID}); $('edit_hide').slide('toggle'); }); $$('input.delete').addEvent( 'click', function(e){ e.stop(); var aID = 'delete_', bID = ''; var deleteID = this.getProperty('id').replace(aID,bID); new MooDialog.Confirm('Soll der Termin gelöscht werden?', function(){ req.send({data : "id=" + deleteID}); }, function(){ new MooDialog.Alert('Schon Konfuzius hat gesagt: Erst denken dann handeln!'); }); }); }); </script> Here the PHP Part that makes the Edit Form: <?php $cKey = mysql_real_escape_string($_POST['id']); $request = mysql_query("SELECT * FROM fusspflege WHERE ID = '".$cKey."'"); while ($row = mysql_fetch_object($request)) { $id = $row->ID; $name = $row->name; $vor = $row->vorname; $ort = $row->ort; $tel = $row->telefon; $mail = $row->email; } echo '<form id="termin_edit" method="post" action="">'; echo '<div><label>Name:</label><input type="text" id="nns" name="name" value="'.$name.'"></div>'; echo '<div><label>Vorname:</label><input type="text" id="nvs" name="vorname" value="'.$vor.'"></div>'; echo '<div><label>Ort:</label><input type="text" id="nos" name="ort" value="'.$ort.'"></div>'; echo '<div><label>Telefon:</label><input type="text" id="nts" name="telefon" value="'.$tel.'"></div>'; echo '<div><label>eMail:</label><input type="text" id="nms" name="email" value="'.$mail.'"></div>'; echo '<input name="id" type="hidden" id="ids" value="'.$id.'"/>'; echo '<input type="button" id="sst" value="Speichern">'; echo '</form>'; ?> And last the Code of the termin_safe.php $id = mysql_real_escape_string($_POST['id']); $na = mysql_real_escape_string($_POST['name']); $vn = mysql_real_escape_string($_POST['vorname']); $ort = mysql_real_escape_string($_POST['ort']); $tel = mysql_real_escape_string($_POST['telefon']); $em = mysql_real_escape_string($_POST['email']); $score = mysql_query("UPDATE fuspflege SET name = '".$na."', vorname = '".$vn."', ort = '".$ort."', telefon = '".$tel."', email = '".$em."' WHERE ID = '".$id."'"); As far as i can see the request does work but the data is not updated! i guess somethings wrong with the things posted For any suggestions i will be gladly happy!

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  • Incorporate Wordpress into Kohana 3

    - by alex
    I now need to make a Kohana 3 site have a Wordpress blog. I've seen Kerkness' Kohana For Wordpress, but it seems to be the opposite of what I want. Here are the options I have thought of Style a template to look exactly like the Kohana site (time consuming, non DRY and may not work) Include the blog within an iframe (ugly as all hell) cURL the Wordpress pages in. This of course means I will need to create layers between comment posting, etc, which sounds like too much work. Is there any way I can include a Wordpress blog within an existing Kohana application? Do you have any suggestions? Thanks Update Forgot to mention I have already programmed a model in Kohana to open pages based on their slug. Now I want to put blog content in there, and have the comments and other bits work. I also have installed WP e-Commerce and am wondering if there is any chance I can get that to work.

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  • Why .NET ASMX web service on secure.site.com can't be called from www.site.com?

    - by user118657
    Hello, We have a web service on https://secure.site.com/service.asmx it works fine from https://secure.site.com/consumer.html but when we try to use it from https://www.site.com/consumer.html we can't do it. Getting 403 error. I'ts probably something related to webservice security (because of different subdomains) but I can't figure out what. How to make https://secure.site.com/service.asmx be accessible from https://www.site.com/consumer.html? Update: Calling webserivce using JQuery Ajax. $.ajax({ type: "POST", url: "https://secure.site.com/service.asmx/method", data: {}, dataType: "xml", success: method_result, error: AjaxFailed }) ; Thanks.

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  • CKeditor 3.0 - How to know which toolbar button is clicked

    - by understack
    Hi, I want to update few variables when any of the toolbar button (like bold, italic etc) is clicked. I'm unable to trap 'click' event on any of these buttons. Could somebody give me an example when clicking on 'bold' button would also pop up an alert box? How can I trap 'paste' event? I've googled a lot and searched ckeditor forum but couldn't find any solution. Any pointer would be really helpful. Thanks.

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  • php mysql database users connection handling

    - by aviv
    What is the best way to handle mysql database users connection in PHP? I have a web server running a PHP application on MySQL. I have created a database user for the application: dbuser1 with limited access - only for query, insert and update tables. No alter table. Now the question is, should i use the same dbuser1 widely in my scripts, so if there are 100 current people using my system and hence 100 scripts running parallel they all connect to the database with the same dbuser1? or should i create a few users and assign each script a different user or load-balance between the dbusers ?

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  • php cache zend framework

    - by msaif
    server side is PHP + zend framework. problem: i have huge of data appox 5000 records and no of columns are 5 in input.txt file. i like to read all data into memory only once and send some data to the every browser request. but if i update that input.txt file then updated data must be auto synchronized to that memory location. so i need to solve that problem by using memory caching technique.but caching technique has expire time.but if input.txt is updated before cache expire then i need to auto synchronize to that memory location. now i am using zend framework 1.10.is it possible in zend framework. can anybody give me some line of code of zendfrmawork i have no option to use memchached server(distributed). Only zend framwork.

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  • I get a 400 Bad Request error while using django-piston

    - by Cheezo
    Hello, I am trying to use Piston to provide REST support to Django. I have implemented my handlers as per the documentation provided . The problem is that i can "read" and "delete" my resource but i cannot "create" or "update". Each time i hit the relevant api i get a 400 Bad request Error. I have extended the Resource class for csrf by using this commonly available code snippet: class CsrfExemptResource(Resource): """A Custom Resource that is csrf exempt""" def init(self, handler, authentication=None): super(CsrfExemptResource, self).init(handler, authentication) self.csrf_exempt = getattr(self.handler, 'csrf_exempt', True) My class (code snippet) looks like this: user_resource = CsrfExemptResource(User) class User(BaseHandler): allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') @require_extended def create(self, request): email = request.GET['email'] password = request.GET['password'] phoneNumber = request.GET['phoneNumber'] firstName = request.GET['firstName'] lastName = request.GET['lastName'] self.createNewUser(self, email,password,phoneNumber,firstName,lastName) return rc.CREATED Please let me know how can i get the create method to work using the POST operation?

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  • Tortoisesvn not showing up correct status after commit

    - by Michael
    Hi, I was going to ask this in tigris.org, however they have maintenance in their forum. My environment: Windows 7 x64, Tortoisesvn latest x64, simple repo. What I'm doing: I am adding a new file to repo, then doing SVN Commit. This operation is successful and I can see it in repo from trac or directly. I expect: To see that file's icon as green checkmark. What I have: I see blue PLUS icon, like I haven't done commit. However, if I just create any new file in that folder(without any commit or update), the icon is immediately changing to checkmark. What a magic! I don't expect here anyone to have answer, this might be a bug, but who knows )) Cheers!

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  • Xcode5 post-archive script for Sparkle package no longer works

    - by Flyingdiver
    Xcode 5 seems to have changed the way it stores the build application package (xxx.app) such that ditto no longer works. In the ../BuildProductsPath/Release/ directory, the app is actually a symlink to .../InstallationBuildProductsLocation/Applications/... MyApp.app - ~/Library/Developer/Xcode/DerivedData/MyApp-emwilkqhlayanxahjpexlpbbkato/Build/Intermediates/ArchiveIntermediates/MyApp/InstallationBuildProductsLocation/Applications/MyApp This breaks the ditto command I was using to create a zip file of the application to put on my Sparkle update server. Anyone have an updated script for building the Sparkle XML and ZIP files? Or know what environment variable I need to use to locate my actual binary after the Archive phase?

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  • PHP: How should I move my code from dev to production?

    - by Teddy
    I have created a PHP web-application. I have 3 environments: DEV, TEST, PROD. What's a good tool / business practice for me to move my PHP web-application code from DEV to TEST to the PROD environment? Realizing that my TEST environment still only connects to my TEST database; whereas, I need to PROD environment to connect to my PROD database. So the code is mostly the same, except that I need to change my TEST code once moved into PROD to connect to the PROD database and not TEST database. I've heard of people taking down Apache in such away that it doesn't allow new connections and once all the existing connections are idle it simply brings down the web server. Then people manually copy the code and then manually update the config files of the PHP application to also point to the PROD instance. That seems terribly dangerous. Does a best practice exists?

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  • Error including image in Latex

    - by euphoria83
    I am getting the following error while compiling my Latex File : ! LaTeX Error: Cannot determine size of graphic in tree.jpg (no BoundingBox). Why do I get this error ? What has this to do with an .eps file ? Infact, I could compile it fine with MacTex on my machine. But when I submit it online to a scientific journal for publication, it compiles it on the server and sends me the resultant PDF which as all these error that prevent it from compiling. I am using the following syntax for including the images : \begin{figure}[!h] \begin{center} \scalebox{0.45}{ \includegraphics{tree.jpg}} \end{center} \caption{\small A sample} \label{tree} \end{figure} What should I do ? Could it be that their server is using an old compiler ? UPDATE : It finally worked. I converted the first image to PDF and the compilation happened perfectly. I guess it used the bounding box value from that PDF and applied it to all images.

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  • Strange tab ordering when creating controls after postback

    - by Crackerjack
    I have a button that opens a panel in a popup window and then performs a postback to retrieve data from the server and render some controls. Some of the controls are textboxes and some are dropdown lists and can be in any order. Everything works fine when tabbing through the textbox controls. But when tabbing from the first dropdown contorl found, the tab order 'gets lost' and it starts tabbing from the first control again. When I tab to the same dropdown list the second time 'round, it correctly tabs to the next control. Does anyone know what might be going on? Example: TextBox1 (Tab -> focus set to 'TextBox2') TextBox2 (Tab -> focus set to 'DropDown1') DropDown1 (Tab -> focus goes back up to 'TextBox1' - wtf?) TextBox3 Update: The TabIndex attribute is set on all controls.

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  • Use a push button to add a section in an InfoPath form?

    - by Alex
    I'm working on an InfoPath form that's going to be run with InfoPath Forms Services on a SharePoint server. For a number of reasons -- mostly so that the customer can update the form without involving an administrator -- this can't be a form containing .NET code. The form has a repeating group, and we have users who are a bit confused as to how to add and delete items from the repeating section. I've looked all over the Internets, but haven't been able to find a way to do this without adding a code project to the form. Is there any way to write a rule or do something else to make a button that adds an item to a repeating section?

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  • Handling ID's with db4o and ASP.NET MVC2

    - by Craig McGuff
    So, i'm looking at the TekPub sample for ASP.NET MVC2 (http://mvcstarter.codeplex.com/) using DB4o and there are a bunch of templates to create controllers etc, the generated code looks like: public ActionResult Details(int id) { var item = _session.Single<Account>(x=>x.ID == id); return View(item); } Now, my understanding is that using DB4o or a simliar object database that ID's are not required, so how/what exactly do I pass to enable this kind of templated code to function? UPDATE: Both answers were useful, I have modifed the templates to use GUID as the ID. I will add any relevant code/notes here once I see how it works out.

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  • Better performance to Query the DB or Cache small result sets?

    - by user169867
    Say I need to populate 4 or 5 dropdowns w/ items from a database. Each drop down will have < 15 items in it. These items almost never change. Now I could query the DB each time the page is accessed or I could grab the values from a custom class that would check to see if they already exist in ASP.Net's cache and only if they don't query the DB to update the cache. It's trivial for me to write but I'm unsure if the performace would be better or not. I think it would be (although not likely anything huge). What do you think?

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  • What class should manage/control the CALayers in my view using proper MVC?

    - by wanderlust
    I have a ViewController with a view (UIView). I need to handle touches, run some logic, check against model data, and and add and remove sublayers to the view based on those touches. Then I need to update the model based on the results. Should I have: ViewController - manage touches, get/set model data, add/remove sublayers UIView CALayer Sublayers or Controller (NSObject) - get/set data ViewController - manage touches, add/remove sublayers UIView CALayer Sublayers or Controller (NSObject) - get/set data CustomView - manage touches, add/remove sublayers CALayer Sublayers Or is it something else all together? No matter what I try, it "feels" awkward. SVN is my friend. Can you guys help a girl (with architectural issues) out?

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  • NSDate & Memory management

    - by iFloh
    Hi, memory management still gives me grief. This time it is an NSDate iVar that I init using NSDate *myNSDate = [[NSDate date] firstDayOfMonth]; with a method call to - (NSDate *)firstDayOfMonth { NSDateComponents *tmpDateComponents = [[NSCalendar currentCalendar] components:NSYearCalendarUnit | NSMonthCalendarUnit | NSEraCalendarUnit | NSWeekCalendarUnit | NSWeekdayOrdinalCalendarUnit fromDate:self]; [tmpDateComponents setDay:1]; [tmpDateComponents setHour:0]; [tmpDateComponents setMinute:0]; [tmpDateComponents setSecond:0]; return [[NSCalendar currentCalendar] dateFromComponents:tmpDateComponents]; } At the end of the init call the retain count is at 1 (Note the iVar is not defined as a property). When I step into the viewWillAppear method the myNSDate has vanished. I tried to do an explicit retain on it, but that only lasts until I update the iVar using the above method again. I though - ok - I add the retain to the return of the function, but that makes the leak analyser throw up an error. What am I doing wrong?

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