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• Having problems using haml and rails3

  - by Victor Rodrigues

  After installing rails3, I'm experiencing problems when trying to use haml with it. I have the updated gem installed, and after rails PROJECT_NAME , I did haml --rails in its root. It apparently had worked fine, since I have haml folder inside plugins, init.rb, as expected. But when I try to rake, or rails server, I get: rake aborted! no such file to load -- haml With --trace I get this: ** Invoke default (first_time) ** Invoke test (first_time) ** Execute test ** Invoke test:units (first_time) ** Invoke db:test:prepare (first_time) ** Invoke db:abort_if_pending_migrations (first_time) ** Invoke environment (first_time) ** Execute environment rake aborted! no such file to load -- haml /usr/local/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta/lib/active_support/dependencies.rb:167:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta/lib/active_support/dependencies.rb:167:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta/lib/active_support/dependencies.rb:537:in `new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta/lib/active_support/dependencies.rb:167:in `require' RAILS_PROJECT_ROOT/vendor/plugins/haml/init.rb:5 /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/plugin.rb:49 /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/initializable.rb:25:in `instance_exec' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/initializable.rb:25:in `run' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/initializable.rb:55:in `run_initializers' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/initializable.rb:54:in `each' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/initializable.rb:54:in `run_initializers' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/application.rb:71:in `initialize!' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/application.rb:112:in `initialize_tasks' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/test_unit/testing.rake:45 /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/test_unit/testing.rake:43:in `collect' /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/test_unit/testing.rake:43 /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31 /usr/local/bin/rake:19:in `load' /usr/local/bin/rake:19

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• RDLC code tutorial

  - by Victor

  Is there any RDLC code tutorial or any related documentation? Thanks in advance

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• Vim: how to undo a regex with a new regex?

  - by Victor Tihomirov

  my I have here a text that has been encrypted in Vi this way: 1,$s/\(.\)\1/&&/g 1,$s/\(.\)\(.\)\2\2\2/\2\2\2\1\2/g 1,$s/\(.\)\(.\)\(.\)\(.\)/\3\1\4\2/g 1,$s/\(...\)\(...\)/\2\1/g The task is to write a new regex for each regex in order to undo the the changes, so-called decrypting of the text. I figured out how to undo the last 2 changes: :1,$s/\(...\)\(...\)/\2\1/g :1,$s/\(.\)\(.\)\(.\)\(.\)/\2\4\1\3/g I'd like you to explain me what do the first two regex do. What does \1 or \2\2\2 mean before the forward slash? I assume that after the slash they change place (but wouldn't it be enough to just write \2\1 instead of \2\2\2\1\2(what does it mean?)? I just don't get it). And what does & or && mean? Thank you

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• Error editing a blob field in ArcGIS Engine

  - by Victor Grigoriu

  I have a GIS layer backed by a MSSQL db. The features on the layer have, say, one field of type esriFieldTypeString and one of type esriFieldTypeBlob. I can edit the string field just fine, but, when I try to edit a blob, StopEditOperation() throws a very generic exception (message: "Error HRESULT E_FAIL has been returned from a call to a COM component.", error code: -2147467259). I couldn't find anything related in the server log. Does anyone have any idea what's going on? IServerContext serverContext = GetServerContext(agsConn, serviceName); ILayer layer = GetILayer(layerName, serverContext); IWorkspace workspace = GetIWorkspace(layer); var feature = GetIFeature(objectId, workspace, layer); var workspaceEdit = (IWorkspaceEdit)workspace; workspaceEdit.StartEditing(false); workspaceEdit.StartEditOperation(); var index = feature.Fields.FindField(featureDetailName); IField field = feature.Fields.get_Field(index); byte[] byteArray = {1, 2, 3}; MemoryBlobStream blob = new MemoryBlobStream(); ((IMemoryBlobStreamVariant)blob).ImportFromVariant(byteArray); if (field.CheckValue(blob)) { feature.set_Value(index, blob); } feature.Store(); workspaceEdit.StopEditOperation(); workspaceEdit.StopEditing(true); serverContext.RemoveAll(); serverContext.ReleaseContext();

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• Vim syntax highlighting not working (but works in gvim?)

  - by victor

  I've followed all instructions given on this site with an empty .vim folder, but for some reason, python highlighting is not working on my system. It only highlights the comments and a few variables - nothing like the picture. http://concisionandconcinnity.blogspot.com/2009/07/vim-part-i-improved-python-syntax.html Is there some other setting I am forgetting? I'm also using ubuntu 10.04 if that matters. A weird other note - it works in gvim, but not vim?

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• How to host different applications without subdomains in Heroku?

  - by Victor P

  I would like to have different applications under the same domain using Heroku. Because of the name of the domain, I would like to access the applications using folders (mydomain.com/app) instead of using subdomains (app.mydomain.com), is this possible? Thanks

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• How to set binding in xaml to my own variable

  - by Victor

  Hello. I have an object in the code: public class UserLogin { bool _IsUserLogin = false; public bool IsUserLogin { get { return _IsUserLogin; } set { _IsUserLogin = value; } } public UserLogin() { _IsUserLogin = false; } } .... public static UserLogin LoginState; ..... LoginState = new UserLogin(); And I need to set bindings to Button.IsEnabled property. I.e. when user not login yet - some buttons are disabled. How can this been done? I have try in xaml: <Button DataContext="LoginState" IsEnabled="{Binding Path=IsUserLogin}"> but, this dos't work and OutputWindow says: System.Windows.Data Error: 39 : BindingExpression path error: 'IsUserLogin' property not found on 'object'. I also have try to set Button.DataContext property to LoginState in the code, but have XamlParseException. I also read this one [http://stackoverflow.com/questions/1829758/wpf-binding-in-xaml-to-an-object-created-in-the-code-behind][1] but still can't set bindings. [1]: http://stackoverflow.com/questions/1829758/wpf-binding-in-xaml-to-an-object-created-in-the-code-behind. Please help!

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• NSURLErrorBadURL error

  - by Victor jiang

  My iphone app called Google Local Search(non javascript version) to behave some search business. Below is my code to form a url: NSString *url = [NSString stringWithFormat:@"http://ajax.googleapis.com/ajax/services/search/local?v=1.0&q=%@", keyword]; NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:url]]; [request setHTTPMethod:@"GET"]; //get response NSHTTPURLResponse* urlResponse = nil; NSError *error = [[[NSError alloc] init] autorelease]; NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error]; NSString *result = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; When the keyword refers to english characters, it works fine, but when refers to chinese characters(encoded in UTF8, such as '???' whose UTF8 code is 'e5a4a9 e5ae89 e997a8'), it will report NSURLErrorBadURL error(-1000, Returned when a URL is sufficiently malformed that a URL request cannot be initiated). Why? Then I carry out further investigation, I use Safari and type in the url below: http://ajax.googleapis.com/ajax/services/search/local?v=1.0&q=??? It also works, and the output I got from Macsniffer is: /ajax/services/search/local?v=1.0&q=%E5%A4%A9%E5%AE%89%E9%97%A8 So I write a testing url directly in my app NSString *url = [NSString stringWithFormat:@"http://ajax.googleapis.com/ajax/services/search/local?v=1.0&q=%E5%A4%A9%E5%AE%89%E9%97%A8"]; And what I got from the Macsniffer is some other thing: /ajax/services/search/local?v=1.0&q=1.687891E-28750X1.417C0001416CP-102640X1.4CC2D04648FBP-9999-1.989891E+0050X1.20DC00184CC67P-953E8E99A8 It seems my keyword "%E5%A4%A9%E5%AE%89%E9%97%A8" was translated into something else. So how can I form a valid url? I do need help!

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• Opening a local file in Eclipse from the web

  - by Victor Nicollet

  Right now, when I notice a problem on a page on my PHP web site, I have to look at the URL, mentally deduce what file is responsible for displaying that page, then navigate the Eclipse PDT file tree to open that file. This is annoying and uses brain power that could have been applied to solving the issue instead. I would like my PHP web site to display on every page a link that I could click to automatically open the correct file in Eclipse. I can easily compute the complete absolute path for the file I need to open (for example, open C:/xampp/htdocs/controllers/Foo/Bar.php when visiting /foo/bar), and I can make sure that Eclipse is currently open with the correct project loaded, but I'm stuck on how I can have Firefox/Chrome/IE tell Eclipse to open that specific file.

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• Facebook Like button working but not sharing

  - by Victor P

  Im using the XFBML version of the Like button but the "Share it" box with the space to leave a comment doesn't show up after clicking "Recommend". The rest works fine. Im using this code: <fb:like href="www.google.cl" width="300" action="recommend" font="lucida grande"></fb:like> And, in the end of the page </body> <div id="fb-root"></div> <script src="http://connect.facebook.net/en_US/all.js"></script> <script> FB.init({appId: '1234567890', status: true, cookie: true, xfbml: true}); FB.Event.subscribe('auth.sessionChange', function(response) { if (response.session) { // A user has logged in, and a new cookie has been saved } else { // The user has logged out, and the cookie has been cleared } }); </script> </html> Do you know what is happening? Any advice is warmly received. Thanks

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• if_attribute sintax problem on declarative_authorization

  - by Victor Martins

  I have an Organization that has_many Affiliations And a mission that has_one Organization So i can do this: m = Mission.first m.organization.affiliations A user also has_many affiliations so I can do: u = User.first u.affiliations In declarative_authorization I want a user to be able to manage a mission if he is affiliated to the organization of the mission. I'm trying this: has_permission_on :missions, :to => [:manage] do if_attribute [:affiliations, {:mission => :organization} ] => intersects_with { user.affiliations.type_admin } end But I get the error: [:affiliations, {:mission=>:organization}] is not a symbol What's wrong with the sintax?

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• if_attribute on declarative authorization

  - by Victor Martins

  I have a many-to-many relationship like this: A user has_many organizations through affiliations and vice-versa. I'm using declarative organizations and I only want a user to edit a particular organization if he is affiliated and the affiliationtype attribute of affiliation is a particular value. So affiliations has 3 columns , user_id, organization_id and affiliationtype_id I can do: o = Organization.find(:first) o.affiliatons[0].user and get the user now I wish to do this: has_permission_on [:organizations], :to => :edit do if_attribute (...) end That if_attribute should see if the current user is the organization.affiliation[?].user and if the organization.affiliation[?].affiliationtype_id = "3" I hope this is syntax issue ... I really need to get this working.

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• SimpleDB as the main database, examples.

  - by Victor P

  Please, can you give examples of real-life implementations using SimpleDB as the main persistent storage?

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• Typus not working in Heroku (error 500) what im doing wrong?

  - by Victor P

  Have someone used Typus (admin plugin for rails) in Heroku? http://intraducibles.com/projects/typus/install I follow the instructions and in my local machine (Rails 2.3.5) is working fine, but when I deploy to Heroku it crashes. What Im doing wrong? the log: Logfile created on Mon Mar 29 18:14:06 -0700 2010 Processing TypusController#dashboard (for 190.196.113.93 at 2010-03-29 18:14:07) [GET] Parameters: {"action"=>"dashboard", "controller"=>"typus"} ActiveRecord::StatementInvalid (PGError: ERROR: relation "typus_users" does not exist : SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull FROM pg_attribute a LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum WHERE a.attrelid = '"typus_users"'::regclass AND a.attnum > 0 AND NOT a.attisdropped ORDER BY a.attnum ): vendor/plugins/typus/app/controllers/typus_controller.rb:128:in `verify_typus_users_table_schema' /home/heroku_rack/lib/static_assets.rb:9:in `call' /home/heroku_rack/lib/last_access.rb:25:in `call' /home/heroku_rack/lib/date_header.rb:14:in `call' thin (1.0.1) lib/thin/connection.rb:80:in `pre_process' thin (1.0.1) lib/thin/connection.rb:78:in `catch' thin (1.0.1) lib/thin/connection.rb:78:in `pre_process' thin (1.0.1) lib/thin/connection.rb:57:in `process' thin (1.0.1) lib/thin/connection.rb:42:in `receive_data' eventmachine (0.12.6) lib/eventmachine.rb:240:in `run_machine' eventmachine (0.12.6) lib/eventmachine.rb:240:in `run' thin (1.0.1) lib/thin/backends/base.rb:57:in `start' thin (1.0.1) lib/thin/server.rb:150:in `start' thin (1.0.1) lib/thin/controllers/controller.rb:80:in `start' thin (1.0.1) lib/thin/runner.rb:173:in `send' thin (1.0.1) lib/thin/runner.rb:173:in `run_command' thin (1.0.1) lib/thin/runner.rb:139:in `run!' thin (1.0.1) bin/thin:6 /usr/local/bin/thin:20:in `load' /usr/local/bin/thin:20 Rendering /disk1/home/slugs/157361_3469154_60b1/mnt/public/500.html (500 Internal Server Error)

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• Could CouchDB benefit significantly from the use of BERT instead of JSON?

  - by Victor Rodrigues

  I appreciate a lot CouchDB attempt to use universal web formats in everything it does: RESTFUL HTTP methods in every interaction, JSON objects, javascript code to customize database and documents. CouchDB seems to scale pretty well, but the individual cost to make a request usually makes 'relational' people afraid of. Many small business applications should deal with only one machine and that's all. In this case the scalability talk doesn't say too much, we need more performance per request, or people will not use it. BERT (Binary ERlang Term http://bert-rpc.org/ ) has proven to be a faster and lighter format than JSON and it is native for Erlang, the language in which CouchDB is written. Could we benefit from that, using BERT documents instead of JSON ones? I'm not saying just for retrieving in views, but for everything CouchDB does, including syncing. And, as a consequence of it, use Erlang functions instead of javascript ones. This would modify some original CouchDB principles, because today it is very web oriented. Considering I imagine few people would make their database API public and usually its data is accessed by the users through an application, it would be a good deal to have the ability to configure CouchDB for working faster. HTTP+JSON calls could still be handled by CouchDB, considering an extra cost in these cases because of parsing.

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• Creating a second form page for a has_many relationship

  - by Victor Martins

  I have an Organization model that has_many users through affiliations. And, in the form of the organization ( the standard edit ) I use semanting_form_for and semantic_fields_for to display the organization fields and affiliations fields. But I wish to create a separete form just to handle the affiliations of a specific organization. I was trying to go to the Organization controller and create a an edit_team and update_team methods then on the routes create those pages, but it's getting a mess and not working. am I on the right track?

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• What is wrong with this WHERE clause?

  - by Victor

  Is there a reason why this query doesn't work? The following query will work if I just exclude the WHERE clause. I need to know what is wrong with it. I know the given values of $key exists in the table, so why doesn't this work? $q = "SELECT * WHERE t1.project=$key FROM project_technologies AS t1 JOIN languages AS t2 ON t1.language = t2.key"; Table's have the following fields: project_technologies - key - project - language languages - key - name

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• PHP bitwise left shifting 32 spaces problem and bad results with large numbers arithmetic operations

  - by Victor Stanciu

  Hello, I have the following problems: First: I am trying to do a 32-spaces bitwise left shift on a large number, and for some reason the number is always returned as-is. For example: echo(516103988<<32); // echoes 516103988 Because shifting the bits to the left one space is the equivalent of multiplying by 2, i tried multiplying the number by 2^32, and it works, it returns 2216649749795176448. Second: I have to add 9379 to the number from the above point: printf('%0.0f', 2216649749795176448 + 9379); // prints 2216649749795185920 Should print: 2216649749795185827

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• WCF webservice stop working after upgrade to framework 3.5 sp1

  - by Victor

  I have a wcf webservice on one of my testing servers. Everything worked fine until I upgraded frome framework 3.5 to 3.5 sp1. the wcf web service stoped working and returns the error: "Failed to invoke the service. The service may be offline or inaccessible. Refer to the stack trace for details." "The remote server returned an unexpected response: (502) Proxy Error ( The specified network name is no longer available. ). Server stack trace: at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException) at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs) at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)" Does anyone know what is going on here?

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• How to use V8's built in functions

  - by Victor jiang

  I'm new in both javascript and V8. According to Google's Embedder's Guide, I saw something in the context section talking about built-in utility javascript functions. And I also found some .js files(e.g. math.js) in the downloaded source code, so I tried to write a simple program to call functions in these files, but I failed. Does a context created by Persistent<Context> context = Context::New() have any built-in js functions? How can I access them? Is there a way to first import existing js files as a library(something like src="xxx" type="text/javascript" in HTML page) and then run my own execute script? Can I call google maps api through the embedded V8 library in app? How?

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• How to convert TM-2 degree coordinate to lat lon on Android?

  - by Victor Lin

  I am writing a program that convert TM-2 degree to lat/lon on Android, but I can't find formula for that. I do find some example on internet, but most of them are convert with open source library, that I can't use on Android platform. I also find a java class that do convert from UTM to lat lon, but it seems no suitable for TM 2 degreen coordinate system. So my question is: how do I convert TM 2 degree coordinate to lat/lon? Where can I find formula?

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• Different canonical URLs for Facebook and Google?

  - by Victor P

  The following URLs point to the same resource: http://www.domain.com/books/123 http://www.domain.com/books/123-Harry-Potter http://www.domain.com/books/123-Harry-Potter-And-The-Deathly-Hallows I would like to use (1) as the canonical URL for OpenGraph/Facebook, so if you "like" (2) and (3) then will count for (1). But I would like to use (3) as the canonical URL for Google, because of SEO. Is this recommended?

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• Is there a jQuery webscraper out there?

  - by victor hugo

  I'm trying to pullout some info from an external site using jQuery and Adobe AIR. Right now I'm using a hidden div and jQuery's load function to load fragments of the external site, once the info is loaded I parse some info with selectors. This is fine but it's kinda dirty and I need to perform this several times (don't want to need many hidden divs). Just wondering if anybody knows a good webscrapper written in jQuery or maybe another method I'm missing

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• SQL code editor with syntax highlighing, auto-formatting and code folding

  - by Victor Stanciu

  Hello, Is there any SQL editor that supports syntax highlighting, automatic code formatting and code folding? I found this, but it's an Eclipse plugin (I'm a NetBeans user), and cannot automatically format code, which is the most important feature I'm after. Autocompletion is not important, nor is the possibility of running the code (like the SQL editor in NetBeans). Edit: I'm sorry for not specifying, I'm looking for Linux or even web-based software.

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• if_attribute on declarative authorization. STUCK FOR DAYS!!!

  - by Victor Martins

  I can't seem to find a solution for this problem :s I have a many to many relationship like this: A user has_many organizations through affiliations and vice versa. I'm using declarative organizations and I only want a user to edit a particular organization if he is affiliated and the affiliationtype attribute of affiliation is a particular value. So affiliations has 3 columns , user_id, organization_id and affiliationtype_id I can do: o = Organization.find(:first) o.affiliatons[0].user and get the user now I wish to do this: has_permission_on [:organizations], :to => :edit do if_attribute (...) end That if_attribute should see if the current user is the organization.affiliation[?].user and if the organization.affiliation[?].affiliationtype_id = "3" I hope this is syntax issue ... I really need to get this working. Thanks in advance.

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