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• In which domains are message oriented middleware like AMQP useful?

  - by cocotwo

  What problem do MOM (Message Oriented Middleware) solve? Scalability? Integration? In which domain are they typically used and in which domains are they typically not used? For example, say, is Google using such solution for it's main search engine or to power GMail? What about big websites like Walmart, eBay, FedEx (pretty much a Java shop) and buy.com (pretty much an MS shop)? Does MOM solve a need there? Does it make any sense when you're writing a Webapp where you control the server-side and have an homogenous environment (say tens of Amazon EC2 instances all running Linux + Java JVMs) there and where the clients are, well, Web browsers? Does it make sense for desktop apps that need to communicate with a server? Or is it 'only' for big enterprise stuff where you typically have a happy mix of countless of different systems that needs to communicate in a way or another? I'm a bit confused as to what they're useful for and I think that with example of where they're appropriate and where they're not appropriate I could better understand their use.

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• page.insert_html not rendering partial correctly

  - by mathee

  The following is in the text_field. = f.text_field :title, :size => 50, :onchange => remote_function(:update => :suggestions, :url => {:action => :display_question_search_results}) The following is in display_questions_search_results.rjs. page.insert_html :bottom, 'suggestions', :partial => 'suggestions' Whenever the user types, I'd like to search the database for any tuples that match the keywords in the text field. Then, display those results. But, at the moment, _suggestions.haml only contains the word "suggestions!!". But, instead of seeing "suggestions!!" in the suggestions div tag, I get: try { Element.insert("suggestions", { bottom: "suggestions!!" }); } catch (e) { alert('RJS error:\n\n' + e.toString()); alert('Element.insert(\"suggestions\", { bottom: \"suggestions!!\" });'); throw e } I've been trying to find out why this is being done, but the previously asked questions I found seem more complicated than what I'm doing...

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• Saving multiple items per single database cell...

  - by eugeneK

  Hi, i have a countries list. Each user can check multiple countries. Once saved, this "user country list" will be used to get whether other users fit into countries certain user chose. Question is what would be the most efficient approach to this problem... I have one, one to save user selection as delimited list like Canada,USA,France ... in single varchar(max) field but problem with it would be that once user from Germany enters page i perform this check on. To search for Germany i would be needed to get all items and un-delimit each field to check against value or to use sql 'like' which again is pretty damn slow.. If you have better solution or some tips i would be glad to hear. Just to make sure, many users will have their own selections of countries from which and only they want to have users to land on their page. While millions of users will reach those pages. So the faster approach will be the better. technology, MSSQL and ASP.NET thanks

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• Apache Lucene: Is Relevance Score Always Between 0 and 1?

  - by Eamorr

  Greetings, I have the following Apache Lucene snippet that's giving me some nice results: int numHits=100; int resultsPerPage=100; IndexSearcher searcher=new IndexSearcher(reader); TopScoreDocCollector collector=TopScoreDocCollector.create(numHits,true); Query q=parser.parse(queryString); searcher.search(q,collector); ScoreDoc[] hits=collector.topDocs(0*resultsPerPage,resultsPerPage).scoreDocs; Results r=new Results(); r.length=hits.length; for(int i=0;i<hits.length;i++){ Document doc=searcher.doc(hits[i].doc); double distanceKm=getGreatCircleDistance(lucene2double(doc.get("lat")), lucene2double(doc.get("lng")), Double.parseDouble(userLat), Double.parseDouble(userLng)); double newRelevance=((1/distanceKm)*Math.log(hits[i].score)/Math.log(2))*(0-1); System.out.println(hits[i].doc+"\t"+hits[i].score+"\t"+doc.get("content")+"\t"+"Km="+distanceKm+"\trlvnc="+String.valueOf(newRelevance)); } What I want to know, is hits[i].score always between 0 and 1? It seems that way, but I can't be sure. I've even checked the Lucene documentation (class ScoreDocs) to no avail. You'll see I'm calculating the log of the "newRelevance" value, which is based on hits[i].score. I need hits[i].score to be between 0 and 1, because if it is below zero, I'll get an error; above 1 and the sign will change from negative to positive. I hope some Lucene expert out there can offer me some insight. Many thanks,

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• How you remember by default functionality/class name etc of the platform

  - by piemesons

  Hello everyone, I am 8 months experienced guy, (B.tech in computer science) In my college time i used to create simple programs in c/c++/java. Simple programs like creating linked list/binary trees programs. frankly saying those college bullshit exercise.(I am from India so Engg colleges in india sucks except few like IIT's etc). In my college time apart from my college exercises i created some better programs/games like arachnoid, snake. We had 6 months internship in our college curriculum. I worked on asp.net. Basically the work was to create a website with some random functionality. After that in my job i worked on php and successfully deployed 4 projects. All having lot of functionality and i was the only team member in all the projects. Now i am learning ruby on rails as i switched to a new firm. I also have to work on android or iphone depending upon on what mobile technology i want to choose or i can work on both of the technologies. My project manager says take your time to learn things. we are not in hurry to place you in any project. Work on things by your self. take 3 4 months to learn. But i am not getting good pace. I am quite confident with php/asp etc but i dont able to grasp things in android. Although my c/c++ background is quite good, having a good logical mind. But i am not able to grasp the things in android. Even learning some basics of rails i found it wtf. Why i have make model name singular and table name plural.By default that action name and name of the file in view is same I just hate the word MAGIC mentioned more than 100 times in the book. (agile-web-development-with-rails) (I am talking about default functionality, I can over ride them that i know, so please dont debate on that) I not saying i am not getting the things. My point is remembering the default functionality is a pissing me off. Lots of classes. Lots of files . specify this thing here. That thing there. All these things (remember which class does what) require some time or i am missing something. For my point of view i am having all these problems cause previously i never used object oriented programming approach in php. (I NEVER USED, I AM NOT SAYING THET ARE NOT) How you people explain it. How you people suggest me to do. I am looking suggestions from some seniors.From seniors in my office.They says you good dude. But i dont know i am not geting confidence in the things. When they ask me anythings about the topics i cover. I give them good answers. So when i discuss this problem with them they says there is no problem just keep on working. And sorry for my poor english.

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• how to monitor the program code execution? (file creation and modification by code lines etc)

  - by infant programmer

  My program is about triggering XSL transformation, Its fact that this code for carrying out the transformation, creates some dll and tmp files and deletes them pretty soon after the transformation is completed. It is almost untraceable for me to monitor the creation and deletion of files manually, so I want to include some chunk of codelines to display "which codeline has created/modified which tmp and dll files" in console window. This is the relevant part of the code: string strXmlQueryTransformPath = @"input.xsl"; string strXmlOutput = string.Empty; StringReader srXmlInput = null; StringWriter swXmlOutput = null; XslCompiledTransform xslTransform = null; XPathDocument xpathXmlOrig = null; XsltSettings xslSettings = null; MemoryStream objMemoryStream = null; objMemoryStream = new MemoryStream(); xslTransform = new XslCompiledTransform(false); xpathXmlOrig = new XPathDocument("input.xml"); xslSettings = new XsltSettings(); xslSettings.EnableScript = true; xslTransform.Load(strXmlQueryTransformPath, xslSettings, new XmlUrlResolver()); xslTransform.Transform(xpathXmlOrig, null, objMemoryStream); objMemoryStream.Position = 0; StreamReader objStreamReader = new StreamReader(objMemoryStream); strXmlOutput = objStreamReader.ReadToEnd(); // make use of Data in string "strXmlOutput" google and msdn search couldn't help me much..

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• How to speed-up python nested loop?

  - by erich

  I'm performing a nested loop in python that is included below. This serves as a basic way of searching through existing financial time series and looking for periods in the time series that match certain characteristics. In this case there are two separate, equally sized, arrays representing the 'close' (i.e. the price of an asset) and the 'volume' (i.e. the amount of the asset that was exchanged over the period). For each period in time I would like to look forward at all future intervals with lengths between 1 and INTERVAL_LENGTH and see if any of those intervals have characteristics that match my search (in this case the ratio of the close values is greater than 1.0001 and less than 1.5 and the summed volume is greater than 100). My understanding is that one of the major reasons for the speedup when using NumPy is that the interpreter doesn't need to type-check the operands each time it evaluates something so long as you're operating on the array as a whole (e.g. numpy_array * 2), but obviously the code below is not taking advantage of that. Is there a way to replace the internal loop with some kind of window function which could result in a speedup, or any other way using numpy/scipy to speed this up substantially in native python? Alternatively, is there a better way to do this in general (e.g. will it be much faster to write this loop in C++ and use weave)? ARRAY_LENGTH = 500000 INTERVAL_LENGTH = 15 close = np.array( xrange(ARRAY_LENGTH) ) volume = np.array( xrange(ARRAY_LENGTH) ) close, volume = close.astype('float64'), volume.astype('float64') results = [] for i in xrange(len(close) - INTERVAL_LENGTH): for j in xrange(i+1, i+INTERVAL_LENGTH): ret = close[j] / close[i] vol = sum( volume[i+1:j+1] ) if ret > 1.0001 and ret < 1.5 and vol > 100: results.append( [i, j, ret, vol] ) print results

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• C++ meta-splat function

  - by aaa

  hello. Is there an existing function (in boost mpl or fusion) to splat meta-vector to variadic template arguments? for example: splat<vector<T1, T2, ...>, function>::type same as function<T1, T2, ...> my search have not found one, and I do not want to reinvent one if it already exists. edit: after some tinkering, apparently it's next to impossible to accomplish this in general way, as it would require declaring full template template parameter list for all possible cases. only reasonable solution is to use macro: #define splat(name, function) \ template<class T, ...> struct name; \ template<class T> \ struct name<T,typename boost::enable_if_c< \ result_of::size<T>::value == 1>::type> { \ typedef function< \ typename result_of::value_at_c<T,0>::type \ > type; \ }; Oh well. thank you

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• apache solr : sum of data resulted from group by

  - by Terance Dias

  Hi, We have a requirement where we need to group our records by a particular field and take the sum of a corresponding numeric field e.x. select userid, sum(click_count) from user_action group by userid; We are trying to do this using apache solr and found that there were 2 ways of doing this: Using the field collapsing feature (http://blog.jteam.nl/2009/10/20/result-grouping-field-collapsing-with-solr/) but found 2 problems with this: 1.1. This is not part of release and is available as patch so we are not sure if we can use this in production. 1.2. We do not get the sum back but individual counts and we need to sum it at the client side. Using the Stats Component along with faceted search (http://wiki.apache.org/solr/StatsComponent). This meets our requirement but it is not fast enough for very large data sets. I just wanted to know if anybody knows of any other way to achieve this. Appreciate any help. Thanks, Terance.

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• Regular expression to Match addresses

  - by Burfi

  I have below set of strings to be searched : 1Dept Neurosci, The Univ. of New Mexico, ALBUQUERQUE, NM; 2Mol. and Human Genet., Baylor Col. of Med., Houston,, TX; 3Psychiatry, Univ. of Texas Southwestern Med. Ctr., Dallas, TX; 4Clin. Genet., Erasmus Univ. Med. Ctr., Rotterdam, Netherlands; 5Human Genet., Emory Univ., Atlanta, GA Above is a set of addresses , which starts with a digit (used to link it to the person).Need to search all the address as : 1Dept Neurosci, The Univ. of New Mexico, ALBUQUERQUE, NM 2Mol. and Human Genet., Baylor Col. of Med., Houston,, TX 3Psychiatry, Univ. of Texas Southwestern Med. Ctr., Dallas, TX 4Clin. Genet., ErasmusUniv. Med. Ctr., Rotterdam, Netherlands 5Human Genet., Emory Univ.Atlanta, GA I have written the below Regex : \d\w+,* It only matches a digit followed by a word . How can I modify it .Please suggest is there any better way.

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• Is it "right" to translate error messages?

  - by Iraklis

  This is somehow subjective depending on the target translation language, but bear with me for a sec. I have recently been involved in a translation project. The goal was to translate the strings of an MVC framework to the Greek language. 70% of the language strings of the framework where translated, however 30% where intentionally left out. The decision was that we will not translate error messages aimed towards the developer of the application. The reasoning behind this (in short) was: are aimed towards designers/programmers. Programmers ( and even designers :) ) should have a basic understanding of English, at least enough so they can search on it on Google if they do not know what it means. (racist?) are aimed towards the developer and in a perfect world should not be displayed to the end user of the application as they concern the inner workings of the web application itself. i.e "You must set the database name in your database config file." and perhaps most importantly, they make the life of the developer harder when he tries to get more information/help regarding the error. For example the above error yields 8 results in Google (in quotes), whereas its Greek translation yields exactly 0. I know that this depends on the popularity of the target translation language and the application itself. For example I'm guessing that there are is vast amount of documentation regarding German SAP error messages (i know, i know, SAP IS German, but you get the point), as opposed to Greek Error Messages documentation regarding random application X which has about 500 installations worldwide. So to summarize: When you develop language translation packs for your applications do you translate error messages? Do you only do for predominant languages like English/Spanish/German/French? Or do you live them intact? I'm not looking for the "right" or "correct" answer, I'm looking for a "best-practices" answer, or if this problem is defined in any "official" standard/policy that you have had experience with.

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• PhpMyAdmin Hangs On MySQL Error

  - by user75228

  I'm currently running PhpMyAdmin 4.0.10 (the latest version supporting PHP 4.2.X) on my Amazon EC2 connecting to a MySQL database on RDS. Everything works perfectly fine except actions that return a mysql error message. Whether I perform "any" kind of action that will return a mysql error, Phpmyadmin will hang with the yellow "Loading" box forever without displaying anything. For example, if I perform the following command in MySQL CLI : select * from 123; It instantly returns the following error : ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '123' at line 1 which is completely normal because table 123 doesn't exist. However, if I execute the exact same command in the "SQL" box in Phpmyadmin, after I click "Go" it'll display "Loading" and stops there forever. Has anyone ever encountered this kind of issue with Phpmyadmin? Is this a bug or I have something wrong with my config.inc.php? Any help would be much appreciated. I also noticed these error messages in my apache error logs : /opt/apache/bin/httpd: symbol lookup error: /opt/php/lib/php/extensions/no-debug-non-zts-20060613/iconv.so: undefined symbol: libiconv_open /opt/apache/bin/httpd: symbol lookup error: /opt/php/lib/php/extensions/no-debug-non-zts-20060613/iconv.so: undefined symbol: libiconv_open /opt/apache/bin/httpd: symbol lookup error: /opt/php/lib/php/extensions/no-debug-non-zts-20060613/iconv.so: undefined symbol: libiconv_open Below are my config.inc.php settings : <?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * phpMyAdmin sample configuration, you can use it as base for * manual configuration. For easier setup you can use setup/ * * All directives are explained in documentation in the doc/ folder * or at <http://docs.phpmyadmin.net/>. * * @package PhpMyAdmin */ /* * This is needed for cookie based authentication to encrypt password in * cookie */ $cfg['blowfish_secret'] = 'something_random'; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */ /* * Servers configuration */ $i = 0; /* * First server */ $i++; /* Authentication type */ $cfg['Servers'][$i]['auth_type'] = 'cookie'; /* Server parameters */ $cfg['Servers'][$i]['host'] = '*.rds.amazonaws.com'; $cfg['Servers'][$i]['connect_type'] = 'tcp'; $cfg['Servers'][$i]['compress'] = true; /* Select mysql if your server does not have mysqli */ $cfg['Servers'][$i]['extension'] = 'mysqli'; $cfg['Servers'][$i]['AllowNoPassword'] = false; $cfg['LoginCookieValidity'] = '3600'; /* * phpMyAdmin configuration storage settings. */ /* User used to manipulate with storage */ $cfg['Servers'][$i]['controlhost'] = '*.rds.amazonaws.com'; $cfg['Servers'][$i]['controluser'] = 'pma'; $cfg['Servers'][$i]['controlpass'] = 'password'; /* Storage database and tables */ $cfg['Servers'][$i]['pmadb'] = 'phpmyadmin'; $cfg['Servers'][$i]['bookmarktable'] = 'pma__bookmark'; $cfg['Servers'][$i]['relation'] = 'pma__relation'; $cfg['Servers'][$i]['table_info'] = 'pma__table_info'; $cfg['Servers'][$i]['table_coords'] = 'pma__table_coords'; $cfg['Servers'][$i]['pdf_pages'] = 'pma__pdf_pages'; $cfg['Servers'][$i]['column_info'] = 'pma__column_info'; $cfg['Servers'][$i]['history'] = 'pma__history'; $cfg['Servers'][$i]['table_uiprefs'] = 'pma__table_uiprefs'; $cfg['Servers'][$i]['tracking'] = 'pma__tracking'; $cfg['Servers'][$i]['designer_coords'] = 'pma__designer_coords'; $cfg['Servers'][$i]['userconfig'] = 'pma__userconfig'; $cfg['Servers'][$i]['recent'] = 'pma__recent'; /* Contrib / Swekey authentication */ // $cfg['Servers'][$i]['auth_swekey_config'] = '/etc/swekey-pma.conf'; /* * End of servers configuration */ /* * Directories for saving/loading files from server */ $cfg['UploadDir'] = ''; $cfg['SaveDir'] = ''; /** * Defines whether a user should be displayed a "show all (records)" * button in browse mode or not. * default = false */ //$cfg['ShowAll'] = true; /** * Number of rows displayed when browsing a result set. If the result * set contains more rows, "Previous" and "Next". * default = 30 */ $cfg['MaxRows'] = 50; /** * disallow editing of binary fields * valid values are: * false allow editing * 'blob' allow editing except for BLOB fields * 'noblob' disallow editing except for BLOB fields * 'all' disallow editing * default = blob */ //$cfg['ProtectBinary'] = 'false'; /** * Default language to use, if not browser-defined or user-defined * (you find all languages in the locale folder) * uncomment the desired line: * default = 'en' */ //$cfg['DefaultLang'] = 'en'; //$cfg['DefaultLang'] = 'de'; /** * default display direction (horizontal|vertical|horizontalflipped) */ //$cfg['DefaultDisplay'] = 'vertical'; /** * How many columns should be used for table display of a database? * (a value larger than 1 results in some information being hidden) * default = 1 */ //$cfg['PropertiesNumColumns'] = 2; /** * Set to true if you want DB-based query history.If false, this utilizes * JS-routines to display query history (lost by window close) * * This requires configuration storage enabled, see above. * default = false */ //$cfg['QueryHistoryDB'] = true; /** * When using DB-based query history, how many entries should be kept? * * default = 25 */ //$cfg['QueryHistoryMax'] = 100; /* * You can find more configuration options in the documentation * in the doc/ folder or at <http://docs.phpmyadmin.net/>. */ ?>

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• Why does my Google maps api v3 and side panel not fill my page upon resizing?

  - by Gavin

  I'm developing a web page and I have a side panel on the left with a search bar and a Google maps api v3 filling the rest of the page to the right. When I make the browser very small vertically, there is a white space between the side panel and the map, and the bottom of the browser. However, the text continues to the bottom of the browser. It looks like: Here's my css code: <style type="text/css"> body {margin:0;} #panel {height:100%; width:300px; position:absolute; padding:0;background-color:#8C95A0;} #header {padding:2px; text-align:center} #address_instruction {position:relative; top:7%; padding:2px; text-align:center} #geocoder {position:relative; top:8%; padding:2px; text-align:center} #toggle_instruction {position:relative; top:22%; padding:2px; text-align:center} #layers {position:relative; top:25%; padding:2px; text-align:center} #layer0 {padding:2px; text-align:center} #layer1 {padding:2px; text-align:center} #layer2 {padding:2px; text-align:center} #link {top:50%; position:relative; padding:2px; text-align:center} #map_canvas {height:100%; left:300px; right:0px; position:absolute; padding:0;} </style> The IDs within #panel refer to the items on the left hand side in the panel. Why don't the side panel background color and map extend to the bottom of the browser?

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• How to use form_tag to update params

  - by Tryskele

  I have been struggling with a problem in Rails for a couple of days and still could not find the solution. Could you help me with that? Problem: I have a search box that puts a :search_string entry in the params structure. I use a form_tag for that and it works fine. <% form_tag :controller=> 'items', :action => 'find' do %> <%= text_field_tag :search_string, params[:search_string] %> <% end %> The problem is when I want to add and update other params key-value (in another view), for instance :start_date, to filter the search_string result. Here is the code snipped that I use in the view: <% form_tag :controller=> "items", :action => "find", :params => params do %> <%= hidden_field_tag :date_start, '2010-04-01' %> <%= submit_tag 'April' %> <% end %> <% form_tag :controller=> "items", :action => "find", :params => params do %> <%= hidden_field_tag :date_start, '2010-03-01' %> <%= submit_tag 'March' %> <% end %> When I first click on "April" submit button, then the params is correctly passed to the controller (i.e. there is a params[:start_date]='April'). However when I try to click "March" button afterwards, the params[:start_date] is not updated. I definitely think this is a stupid newbie mistake, but I cannot figure out how to properly use the form_tag. Could you tell me if I am doing something work? Otherwise, could you advise me which is the best way to update the params using form_tag's ? Thank you very much in advance. Miquel

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• BlackBerry Deployment Strategies

  - by cagreen

  I'm new to large scale BB app deployment and I'm looking for some clarification on the various methods of deployment. Please bear with me as I'm sure there is more to it than my naive view would lead me to believe. My app is very targeted to corporate users and requires a subscription to some additional services before it can be used. In other words, it's not targeted towards the consumer market, so I'm not worried about people not being able to easily find it online. What do I need to be aware of when looking at deployment strategies? Any gotchas? From my understanding my choices are: - App World small upfront vendor fee users can easily search for and find my app billing handled by RIM 4 licensing models (static, single, pool, dynamic). Though I'm not sure I've seen enough info on the pool and dynamic to fully appreciate how it might help me. - Download from my website billing is handled by me can I enforce the number of licenses that are in use within an organization? is this easier/harder for a user? - What else am I missing?

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• What's the best technique to protect my framework from visitors who are not logged in?

  - by Hermet

  First of all, I would like to say that I have used the search box looking for a similar question and was unsuccessful, maybe because of my poor english skills. I have a a 'homemade' framework. I have certain PHP files that must only be visible for the admin. The way I currently do this is check within every single page to see if a session has been opened. If not, the user gets redirected to a 404 page, to seem like the file which has been requested doesn't exist. I really don't know if this is guaranteed to work or if there's a better and more safe way because I'm currently working with kind of confidential data that should never become public. Could you give me some tips? Or leave a link where I could find some? Thank you very much, and again excuse me for kicking the dictionary. EDIT What I usually write in the top of each file is something like this <?php include("sesion.php"); $rs=comprueba(); //'check' if ($rs==1) { ?> And then, at the end <?php } ?> Is it such a butched job, isn't it? EDIT Let's say I have a customers list in a file named customers.php That file may be currently on http://www.mydomain.com/admin/customers.php and it must only be visible for the admin user. Once the admin user has been logged in, I create a session variable. That variable is what I check on the top of each page, and if it exists, the customers list is shown. If not, the user gets redirected to the 404 page. Thank you for your patience. I really appreciate.

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• Script/plugin to update web page (load next 25 comments) until page fully loaded

  - by Carl

  Brief summary: I need a script/plugin for Firefox that selects the "load next 25 comments" link at the bottom of a web page, until that link is no longer on the page. As you click that link - you get more comments - eventually all of them on the same page. See this web page for an example (there are 1,852 comments): http://www.cnn.com/2010/US/05/16/gulf.oil.spill/index.html#comment-50598247 I have a regular problem with CNN.com. I post comments there. People sometimes reply to them. I check my profile, and see the number of replies, but I can't read them there. I have to follow the link to the original article. The fist set of comments are at the bottom, with a 'load next 25' link at the bottom. There are often hundreds of comments, and sometimes a few thousand. There is no practical way for me to read the replies to my comments. If there's under around 300 hundred, I'll just click that link enough times to see what the replies to my comments are. I need a script/plugin to select that 'load next 25' link until that link is no longer present on the page. Then I could just search for my userid and read the responses.

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• is there a better way to write this frankenstein LINQ query that searches for values in a child tabl

  - by MRV

  I have a table of Users and a one to many UserSkills table. I need to be able to search for users based on skills. This query takes a list of desired skills and searches for users who have those skills. I want to sort the users based on the number of desired skills they posses. So if a users only has 1 of 3 desired skills he will be further down the list than the user who has 3 of 3 desired skills. I start with my comma separated list of skill IDs that are being searched for: List<short> searchedSkillsRaw = skills.Value.Split(',').Select(i => short.Parse(i)).ToList(); I then filter out only the types of users that are searchable: List<User> users = (from u in db.Users where u.Verified == true && u.Level > 0 && u.Type == 1 && (u.UserDetail.City == city.SelectedValue || u.UserDetail.City == null) select u).ToList(); and then comes the crazy part: var fUsers = from u in users select new { u.Id, u.FirstName, u.LastName, u.UserName, UserPhone = u.UserDetail.Phone, UserSkills = (from uskills in u.UserSkills join skillsJoin in configSkills on uskills.SkillId equals skillsJoin.ValueIdInt into tempSkills from skillsJoin in tempSkills.DefaultIfEmpty() where uskills.UserId == u.Id select new { SkillId = uskills.SkillId, SkillName = skillsJoin.Name, SkillNameFound = searchedSkillsRaw.Contains(uskills.SkillId) }), UserSkillsFound = (from uskills in u.UserSkills where uskills.UserId == u.Id && searchedSkillsRaw.Contains(uskills.SkillId) select uskills.UserId).Count() } into userResults where userResults.UserSkillsFound > 0 orderby userResults.UserSkillsFound descending select userResults; and this works! But it seems super bloated and inefficient to me. Especially the secondary part that counts the number of skills found. Thanks for any advice you can give. --r

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• Writing a plist

  - by iOS-Newbie

  I am trying to test out writing a dictionary to a plist. The following code does not report any errors, but I cannot find any trace of the file that I supposed wrote. Here is the code snippet: NSDictionary *myDictionary = [NSDictionary dictionaryWithObjectsAndKeys: @"First letter of the alphabet", @"A", @"Second letter of the alphabet", @"B", @"Third letter of the alphabet", @"C", nil ]; I can see the dictionary contents displayed properly with either method calls: NSLog(@"Here is my partial dictionary %@", myDictionary); for (NSString *key in myDictionary) NSLog(@"here it is again %@ %@", key, [myDictionary objectForKey:key]); The following code displays the "succeeded" message when the program is run repeatedly if ([myDictionary writeToFile: @"myDictionary" atomically:YES ] == NO) NSLog(@"write to file failed"); else NSLog(@"write to file succeeded"); even when changing the atomically: argument to NO to not write a temporary file. However, when I search my current directory, or even my entire Mac, I cannot find any file called "myDictionary.plist" or any file with the string "myDictionary". Isn't the path variable "@myDictionary" supposed to represent the file at the current directory, i.e. where the class executable resides?

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• changing asp .net web service namespace when already in productive state

  - by eloQ

  by some unfortunate events we published a web service with the tempuri-namespace a couple of months ago and no one did notice (not in our company, not the companies connecting to the web service) even though it's live since that time and lots of companies (~25 i guess) already access this web service. now i'm thinking of correcting that mistake and have the namespace fixed to a proper value. the only problem is: as soon as we would do it, all the programs and services connected to this web service would stop working. i can't really allow that to happen. is there any way to fix the namespace for future purpose or to have the web service operate under two namespaces as one web service? any tip at all what i could do to get rid of the tempuri-namespace and have it fixed without needing to synchronize the change with all the external companies? i'm all out of ideas, so any help would be much appreciated! thanks! I hope this question is alright here, first time user, found this through using search engines on my research and found tempuri.org related posts, just not the right one..

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• Use MySQL trigger to update another table when duplicate key found

  - by Jason

  Been scratching my head on this one, hoping one of you kind people and direct me towards solving this problem. I have a mysql table of customers, it contains a lot of data, but for the purpose of this question, we only need to worry about 4 columns 'ID', 'Firstname', 'Lastname', 'Postcode' Problem is, the table contains a lot of duplicated customers. A new table is being created where each customer is unique and for us, we decide a unique customer is based on 'Firstname', 'Lastname' and 'Postcode' However, (this is the important bit) we need to ensure each new "unique" customer record also can be matched to the original multiple entries of that customer in the original table. I believe the best way to do this is to have a third table, that has 'NewUniqueID', 'OldCustomerID'. So we can search this table for 'NewUniqueID' = '123' and it would return multiple 'OldCustomerID' values where appropriate. I am hoping to make this work using a trigger and the on duplicate key syntax. So what would happen is as follows: An query is run taking the old customer table and inserting it in to the new unique table. (A standard Insert Select query) On duplicate key continue adding records, but add one entry in to the third table noting the 'NewUniqueID' that duped along with the 'OldCustomerID' of the record we were trying to insert. Hope this makes sense, my apologies if it isn't clear. I welcome and appreciate any thoughts on this one! Many thanks Jason

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• Is it possible to spoof or reuse VIEWSTATE or detect if it is protected from modification?

  - by Peter Jaric

  Question ASP and ASP.NET web applications use a value called VIEWSTATE in forms. From what I understand, this is used to persist some kind of state on the client between requests to the web server. I have never worked with ASP or ASP.NET and need some help with two questions (and some sub-questions): 1) Is it possible to programmatically spoof/construct a VIEWSTATE for a form? Clarification: can a program look at a form and from that construct the contents of the base64-encoded VIEWSTATE value? 1 a) Or can it always just be left out? 1 b) Can an old VIEWSTATE for a particular form be reused in a later invocation of the same form, or would it just be luck if that worked? 2) I gather from http://msdn.microsoft.com/en-us/library/ms972976.aspx#viewstate_topic12 that it is possible to turn on security so that the VIEWSTATE becomes secure from spoofing. Is it possible for a program to detect that a VIEWSTATE is safeguarded in such a way? 2 a) Is there a one-to-one mapping between the occurrence of EVENTVALIDATION values and secure VIEWSTATEs? Regarding 1) and 2), if yes, can I have a hint about how I would do that? For 2) I am thinking I could base64-decode the value and search for a string that always is found in unencrypted VIEWSTATEs. "First:"? Something else? Background I have made a small tool for detecting and exploiting so called CSRF vulnerabilities. I use it to quickly make proof of concepts of such vulnerabilities that I send to the affected site owners. Quite often I encounter these forms with a VIEWSTATE, and these I don't know if they are secure or not. Edit 1: Clarified question 1 somewhat. Edit 2: Added text in italics.

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• IE7 float and clear on the same element

  - by bGiraffe

  Hi geeks, Here is my code, <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>[your title]</title> <style type="text/css"> .a, .b, .c { float: left; } .b { clear: left; } </style> </head> <body> <div class="a">1</div> <div class="b">2</div> <div class="c">3</div> </body> </html> In IE8, firefox, chrome, safari, opera, the output will be: 1 23 However in IE7: 13 2 I have search for solutions two days already... anyone can help? Cheers, bGiraffe

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• ASP.NET MVC - hiding id in URL?

  - by mcfroob

  I'm building a basic blog application just now, for viewing data I'm just using the default route, i.e. - routes.MapRoute ( "Default", // Route name "{controller}/{action}/{id}", new { controller = "Blog", action = "Index", id = UrlParameter.Optional } ); So that when you go to mysite.com/View/12 it displays the blog with id 12. I want to modify the URLs so that they look as follows: mysite.com/View/2010/06/01/this-is-the-title. I could have a URL mapping like - routes.MapRoute( "View", "View/{year}/{month}/{day}/{title}", new { controller = "Blog", action = "View" } ); But then I'm not passing the ID into the Controller action so I would have to search on the date and title which doesn't feel right. On the other hand, if I pass the ID in it will show up in the URL which isn't what I'm aiming for either. Is there any way to redirect to the URL I want in the controller action after passing only the ID in as a paramter, or to pass the ID into the a Map Route but hide it in the URL? Thanks for your help!

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• need help with mvc & routes

  - by geoff

  I'm very new to MVC and I'm trying to get a new site set up using it. For SEO reasons we need to make the url of a page something like "Recruiter/4359/John_Smith" or basically {controller}/{id}/{name}. I have that working when I create the url in the code behind like so... //r is a recruiter object that is part of the results for the view r.Summary = searchResult.Summary + "... &lt;a href=\"/Recruiter/" + r.Id + "/" + r.FirstName + "_" + r.LastName + "\"&gt;Read More&lt;/a&gt;" But when I am using the collection of results from a search in my view and iterating through them I am trying to create another link to the same page doing something like <%=Html.ActionLink<RecruiterController>(x => x.Detail((int)r.Id), r.RecruiterName)%> but that doesn't work. When I use that code in the view it gives me a url in the form of /Recruiter/Detail/4359 I was told by a coworker that I should use the Html.ActionLink to create the link in both the view and the controller so that if the route changes in the future it will automatically work. Unfortunately he wasn't sure how to do that in this case. So, my problems are... How can I make the Html.ActionLink work in the view to create a url like I need (like r.Summary above)? How do I use the Html.ActionLink in a controller instead of hardcoding the link like I have above?

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