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• pinpointing "conditional jump or move depends on uninitialized value(s)" valgrind message

  - by kamziro

  So I've been getting some mysterious uninitialized values message from valgrind and it's been quite the mystery as of where the bad value originated from. Seems that valgrind shows the place where the unitialised value ends up being used, but not the origin of the uninitialised value. ==11366== Conditional jump or move depends on uninitialised value(s) ==11366== at 0x43CAE4F: __printf_fp (in /lib/tls/i686/cmov/libc-2.7.so) ==11366== by 0x43C6563: vfprintf (in /lib/tls/i686/cmov/libc-2.7.so) ==11366== by 0x43EAC03: vsnprintf (in /lib/tls/i686/cmov/libc-2.7.so) ==11366== by 0x42D475B: (within /usr/lib/libstdc++.so.6.0.9) ==11366== by 0x42E2C9B: std::ostreambuf_iterator<char, std::char_traits<char> > std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::_M_insert_float<double>(std::ostreambuf_iterator<char, std::char_traits<char> >, std::ios_base&, char, char, double) const (in /usr/lib/libstdc++.so.6.0.9) ==11366== by 0x42E31B4: std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::do_put(std::ostreambuf_iterator<char, std::char_traits<char> >, std::ios_base&, char, double) const (in /usr/lib/libstdc++.so.6.0.9) ==11366== by 0x42EE56F: std::ostream& std::ostream::_M_insert<double>(double) (in /usr/lib/libstdc++.so.6.0.9) ==11366== by 0x81109ED: Snake::SnakeBody::syncBodyPos() (ostream:221) ==11366== by 0x810B9F1: Snake::Snake::update() (snake.cpp:257) ==11366== by 0x81113C1: SnakeApp::updateState() (snakeapp.cpp:224) ==11366== by 0x8120351: RoenGL::updateState() (roengl.cpp:1180) ==11366== by 0x81E87D9: Roensachs::update() (rs.cpp:321) As can be seen, it gets quite cryptic.. especially because when it's saying by Class::MethodX, it sometimes points straight to ostream etc. Perhaps this is due to optimization? ==11366== by 0x81109ED: Snake::SnakeBody::syncBodyPos() (ostream:221) Just like that. Is there something I'm missing? What is the best way to catch bad values without having to resort to super-long printf detective work?

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• .Net Architecture challenge: The Change-prone Frankestein Model

  - by SDReyes

  Good Morning SO! We've been scratching our heads with with this interesting scenario at the office, and we're anxious to hear your ideas and approaches: We have a database, whose schema is prone to changes -lets call it Prony-. (is used to store configuration parameters for embedded devices. so if the embedded devices guy need a new table, property or relationship for the model, he should be able to adapt the schema in a easy way -happens so often- ). Prony needs a web interface to create/edit its data. We have another database containing data that also need to be loaded to the devices, after making some transformations - lets call this one Oddy- (this data it's generated by an already existent administrative web application). Finally we have Tracy, a server that communicates our DBs and our embedded devices. She should to auto-adapt herself, to our dbs schema changes and serialize the data to the devices. Nice puzzle, don't think so? : ) Our current candidates: Rady: The fast Lets create some views in Prony that make the data transformation from Oddy. then use DynamicData (or some RAD tool) to create/update a simple web interface for Prony (so he can even consult the transformated data from coming from Prony : ). About Tracy, she will need to be recompiled to update her DB schema (Entity framework should work) and use Reflection to explore recursively the schema and serialize data. Cons: We would have to recompile Tracy and the Prony's web interface. What do you think of the candidate(s)? What would you do?

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• Hibernate and parent/child relations

  - by Marco

  Hi to all, I'm using Hibernate in a Java application, and i feel that something could be done better for the management of parent/child relationships. I've a complex set of entities, that have some kind of relationships between them (one-to-many, many-to-many, one-to-one, both unidirectional and bidirectional). Every time an entity is saved and it has a parent, to estabilish the relationship the parent has to add the child to its collection (considering a one-to-may relationship). For example: Parent p = (Parent) session.load(Parent.class, pid); Child c = new Child(); c.setParent(p); p.getChildren().add(c); session.save(c); session.flush(); In the same way, if i remove a child then i have to explicitly remove it from the parent collection too. Child c = (Child) session.load(Child.class, cid); session.delete(c); Parent p = (Parent) session.load(Parent.class, pid); p.getChildren().remove(c); session.flush(); I was wondering if there are some best practices out there to do this jobs in a different way: when i save a child entity, automatically add it to the parent collection. If i remove a child, automatically update the parent collection by removing the child, etc. For example, Child c = new Child(); c.setParent(p); session.save(c); // Automatically update the parent collection session.flush(); or Child c = (Child) session.load(Child.class, cid); session.delete(c); // Automatically updates its parents (could be more than one) session.flush(); Anyway, it would not be difficult to implement this behaviour, but i was wondering if exist some standard tools or well known libraries that deals with this issue. And, if not, what are the reasons? Thanks

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• How do I read binary C++ protobuf data using Python protobuf?

  - by nbolton

  The Python version of Google protobuf gives us only: SerializeAsString() Where as the C++ version gives us both: SerializeToArray(...) SerializeAsString() We're writing to our C++ file in binary format, and we'd like to keep it this way. That said, is there a way of reading the binary data into Python and parsing it as if it were a string? Is this the correct way of doing it? binary = get_binary_data() binary_size = get_binary_size() string = None for i in range(len(binary_size)): string += i message = new MyMessage() message.ParseFromString(string) Update: Here's a new example, and a problem: message_length = 512 file = open('foobars.bin', 'rb') eof = False while not eof: data = file.read(message_length) eof = not data if not eof: foo_bar = FooBar() foo_bar.ParseFromString(data) When we get to the foo_bar.ParseFromString(data) line, I get this error: Exception Type: DecodeError Exception Value: Too many bytes when decoding varint. Update 2: It turns out, that the padding on the binary data was throwing protobuf off; too many bytes were being sent in, as the message suggests (in this case it was referring to the padding). This padding comes from using the C++ protobuf function, SerializeToArray on a fixed-length buffer. To eliminate this, I have used this temproary code: message_length = 512 file = open('foobars.bin', 'rb') eof = False while not eof: data = file.read(message_length) eof = not data string = '' for i in range(0, len(data)): byte = data[i] if byte != '\xcc': # yuck! string += data[i] if not eof: foo_bar = FooBar() foo_bar.ParseFromString(string) There is a design flaw here I think. I will re-implement my C++ code so that it writes variable length arrays to the binary file. As advised by the protobuf documentation, I will prefix each message with it's binary size so that I know how much to read when I'm opening the file with Python.

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• Rotate a feature Image in Open Layers - Javascript variable from JSON.

  - by Ozaki

  I have an open layers map. It adds and removes my "imageFeature" every 10secs or so. I have a JSON feed that gives me the rotation that I need, I have a request to get that rotation and set it as a variable of rotationv. Everything works but the fact when the image is recreated it does not update the rotation. My code is as follows: JSON request: var rotationv = (function () { rotationv = null; $.ajax({ 'async': false, 'global': true, 'url': urldefault, 'dataType': "json", 'success': function (data) { rotationv = data.rotation; } }); return rotationv })(); Creating image feature: imageFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Point(mylon, mylat), { rotation: rotationv } ); The image is set in the styling elsewhere. Why does this not rotate my image? Debugging with firebug I now notice that "rotationv" is updating as per it should be. But when the point is destroyed then added again it does not apply the new rotation... Add: I realised that the "image" is applied as per the layer. So I need to figure out how to re apply the stylemap to the layer so it will trigger the "update" on the page. //redefine layer 2 so it can be updated// //test.js is just a 0.0 testref// var layer2 = new OpenLayers.Layer.GML("Layer 2", "test.js", { format: OpenLayers.Format.GeoJSON, styleMap: styleMap }); But even if I add the above into my function still no luck. Included map.addLayers([layer2]); into the function as well.

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• Best practices for managing updating a database with a complex set of changes

  - by Sarge

  I am writing an application where I have some publicly available information in a database which I want the users to be able to edit. The information is not textual like a wiki but is similar in concept because the edits bring the public information increasingly closer to the truth. The changes will affect multiple tables and the update needs to be automatically checked before affecting the public tables. I'm working on the design and I'm wondering if there are any best practices that might help with some particular issues. I want to provide undo capability. I want to show the user the combined result of all their changes. When the user says they're done, I need to check the underlying public data to make sure it hasn't been changed by somebody else. My current plan is to have the user work in a set of tables setup to be a private working area. Once they're ready they can kick off a process to check everything and update the public tables. Undo can be recorded using Command pattern saving to a table. Are there any techniques I might have missed or useful papers or patterns? Thanks in advance!

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• Preserving SCRIPT tags (and more) in CKEditor

  - by Jonathan Sampson

  Update: I'm thinking the solution to this problem is in CKEDITOR.config.protectedSource(), but my regular-expression experience is proving to be too juvenile to handle this issue. How would I go about exempting all tags that contain the 'preserved' class from being touched by CKEditor? Is it possible to create a block of code within the CKEditor that will not be touched by the editor itself, and will be maintained in its intended-state until explicitly changed by the user? I've been attempting to input javascript variables (bound in script tags) and a flash movie following, but CKEditor continues to rewrite my pasted code/markup, and in doing so breaking my code. I'm working with the following setup: <script type="text/javascript"> var editor = CKEDITOR.replace("content", { height : "500px", width : "680px", resize_maxWidth : "680px", resize_minWidth : "680px", toolbar : [ ['Source','-','Save','Preview'], ['Cut','Copy','Paste','PasteText','PasteFromWord','-','Print', 'SpellChecker', 'Scayt'], ['Undo','Redo','-','Find','Replace','-','SelectAll','RemoveFormat'], ['Bold','Italic','Underline','Strike','-','Subscript','Superscript'], ['NumberedList','BulletedList','-','Outdent','Indent','Blockquote'], ['JustifyLeft','JustifyCenter','JustifyRight','JustifyBlock'], ['Link','Unlink','Anchor'], ['Image','Table','HorizontalRule','SpecialChar'] ] }); CKFinder.SetupCKEditor( editor, "<?php print url::base(); ?>assets/ckfinder" ); </script> UPDATE: I suppose the most ideal solution would be to preserve the contents of any tag that contains class="preserve" enabling much more than the limited exclusives.

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• How to disable mod_security2 rule (false positive) for one domain on centos 5

  - by nicholas.alipaz

  Hi I have mod_security enabled on a centos5 server and one of the rules is keeping a user from posting some text on a form. The text is legitimate but it has the words 'create' and an html <table> tag later in it so it is causing a false positive. The error I am receiving is below: [Sun Apr 25 20:36:53 2010] [error] [client 76.171.171.xxx] ModSecurity: Access denied with code 500 (phase 2). Pattern match "((alter|create|drop)[[:space:]]+(column|database|procedure|table)|delete[[:space:]]+from|update.+set.+=)" at ARGS:body. [file "/usr/local/apache/conf/modsec2.user.conf"] [line "352"] [id "300015"] [rev "1"] [msg "Generic SQL injection protection"] [severity "CRITICAL"] [hostname "www.mysite.com"] [uri "/node/181/edit"] [unique_id "@TaVDEWnlusAABQv9@oAAAAD"] and here is /usr/local/apache/conf/modsec2.user.conf (line 352) #Generic SQL sigs SecRule ARGS "((alter|create|drop)[[:space:]]+(column|database|procedure|table)|delete[[:space:]]+from|update.+set.+=)" "id:1,rev:1,severity:2,msg:'Generic SQL injection protection'" The questions I have are: What should I do to "whitelist" or allow this rule to get through? What file do I create and where? How should I alter this rule? Can I set it to only be allowed for the one domain, since it is the only one having the issue on this dedicated server or is there a better way to exclude table tags perhaps? Thanks guys

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• Serializing a part of object graph

  - by Felix

  Hi all, I have a problem regarding Java custom serialization. I have a graph of objects and want to configure where to stop when I serialize a root object from client to server. Let's make it a bit concrete, clear by giving a sample scenario. I have Classes of type Company Employee (abstract) Manager extends Employee Secretary extends Employee Analyst extends Employee Project Here are the relations: Company(1)---(n)Employee Manager(1)---(n)Project Analyst(1)---(n)Project Imagine, I'm on the client side and I want to create a new company, assign it 10 employees (new or some existing) and send this new company to the server. What I expect in this scenario is to serialize the company and all bounding employees to the server side, because I'll save the relations on the database. So far no problem, since the default Java serialization mechanism serializes the whole object graph, excluding the field which are static or transient. My goal is about the following scenario. Imagine, I loaded a company and its 1000 employees from the server to the client side. Now I only want to rename the company's name (or some other field, that directly belongs to the company) and update this record. This time, I want to send only the company object to the server side and not the whole list of employees (I just update the name, the employees are in this use case irrelevant). My aim also includes the configurability of saying, transfer the company AND the employees but not the Project-Relations, you must stop there. Do you know any possibility of achieving this in a generic way, without implementing the writeObject, readObject for every single Entity-Object? What would be your suggestions? I would really appreciate your answers. I'm open to any ideas and am ready to answer your questions in case something is not clear.

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• In what order does DOJO handles ajax requests?

  - by mm2887

  Hi, Using a form in a dialog box I am using Dojo in jsp to save the form in my database. After that request is completed using dojo.xhrPost() I am sending in another request to update a dropdown box that should include the added form object that was just saved, but for some reason the request to update the dropdown is executed before saving the form in the database even though the form save is called first. Using Firebug I can see that the getLocations() request is completed before the sendForm() request. This is the code: Add Team sendForm("ajaxResult1", "addTeamForm"); dijit.byId("addTeamDialog").hide(); getLocations("locationsTeam"); </script> function sendForm(target, form){ var targetNode = dojo.byId(target); var xhrArgs = { form: form, url: "ajax", handleAs: "text", load: function(data) { targetNode.innerHTML = data; }, error: function(error) { targetNode.innerHTML = "An unexpected error occurred: " + error; } } //Call the asynchronous xhrGet var deferred = dojo.xhrPost(xhrArgs); } function getLocations(id) { var targetNode = dojo.byId(id); var xhrArgs = { url: "ajax", handleAs: "text", content: { location: "yes" }, load: function(data) { targetNode.innerHTML = data; }, error: function(error) { targetNode.innerHTML = "An unexpected error occurred: " + error; } } //Call the asynchronous xhrGet var deferred = dojo.xhrGet(xhrArgs); } Why is this happening? Is there way to make the first request complete first before the second executes? To reduce the possibilities of why this is happening I tried setting the cache property in xhrGet to false but the result is still the same. Please help!

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• Is there a more efficient AS3 way to compare 2 arrays for adds, removes & updates?

  - by WillyCornbread

  Hi all - I'm wondering if there is a better way to approach this than my current solution... I have a list of items, I then retrieve another list of items. I need to compare the two lists and come up with a list of items that are existing (for update), a list that are not existing in the new list (for removal) and a list of items that are not existing in the old list (for adding). Here is what I'm doing now - basically creating a lookup object for testing if an item exists. Thanks for any tips. for each (itm in _oldItems) { _oldLookup[itm.itemNumber] = itm; } // Loop through items and check if they already exist in the 'old' list for each (itm in _items) { // If an item exists in the old list - push it for update if (_oldLookup[itm.itemNumber]) { _itemsToUpdate.push(itm); } else // otherwise push it into the items to add { _itemsToAdd.push(itm); } // remove it from the lookup list - this will leave only // items for removal remaining in the lookup delete _oldLookup[itm.itemNumber]; } // The items remaining in the lookup object have neither been added or updated - // so they must be for removal - add to list for removal for each (itm in _oldLookup) { _itemsToRemove.push(itm); }

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• Repeatedly execute a stored procedure

  - by manivineet

  I have a situation where I need to repeatedly execute a stored procedure Now this procedure (spMAIN) has a cursor inside which looks for a value from a table as T1,which has the following structure ID Status ---- -------- 1 New 2 New 3 success 4 Error now the cursor looks for all rows with a status of 'New' Now while processing , if that instance of the cursor encounters an error, another SP say spError needs to be called, the 'Status' column in T1 needs to be updated to 'Error' and spMAIN needs to be called again which again repeats the process, looking for rows with 'new' how do I do it? Also, also, while we are at it, what if an SP has other SPs inside it and if any of those SP raises an error, same thing needs to be done, the T1 table needs to be updated ('Error') and spMAIN needs to be called again. can you also recommend something ? here's some code ALTER PROC zzSpMain AS BEGIN DECLARE @id INT BEGIN TRY IF EXISTS ( SELECT * FROM dbo.zzTest WHERE istatus = 'new' ) BEGIN DECLARE c CURSOR FOR SELECT id FROM zztest WHERE istatus = 'new' OPEN c FETCH NEXT FROM c INTO @id WHILE @@FETCH_STATUS = 0 BEGIN PRINT @id IF @id = 2 BEGIN UPDATE zztest SET istatus = 'error' WHERE id = @id RAISERROR ( 'Error occured', 16, 1 ) END UPDATE zztest SET istatus = 'processed' WHERE id = @id FETCH NEXT FROM c INTO @id END CLOSE c DEALLOCATE c END END TRY begin CATCH EXEC zzSpError END CATCH END

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• Using a Javascript Variable & Sending to JSON

  - by D Franks

  Hello all! I'm trying to take a URL's hash value, send it through a function, turn that value into an object, but ultimately send the value to JSON. I have the following setup: function content(cur){ var mycur = $H(cur); var pars = "p="+mycur.toJSON(); new Ajax.Updater('my_box', 'test.php', { parameters: pars }); } function update(){ if(window.location.hash.length > 0){ content(window.location.hash.substr(1)); // Everything after the '#' } } var curHashVal = window.location.hash; window.onload = function(){ setInterval(function(){ if(curHashVal != window.location.hash){ update(); curHashVal = window.location.hash; } },1); } But for some reason, I can't seem to get the right JSON output. It will either return as a very large object (1:"{",2:"k") or not return at all. I doubt that it is impossible to accomplish, but I've exhausted most of the ways I can think of. Other ways I've tried were "{" + cur + "}" as well as cur.toObject(), however, none seemed to get the job done. Thanks for the help!

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• Concurrency and Coordination Runtime (CCR) Learning Resources

  - by Harry

  I have recently been learning the in's and out's of the Concurrency and Coordination Runtime (CCR). Finding good learning resources for this relatively new technology has been quite difficult. (A quick google search brings up "Creedence Clearwater Revival" as the top result!) Some of the resources I have found: Free e-book chapter from WROX on the Robotics Developer Studio Good Article/post on InfoQ Robotic's Member blog Very active MSDN CCR Forum - Got plenty of help from here! Great MSDN Magazine by Jeffrey Richter Official CCR User Guide - Didn't find this very helpful Great blogging series on CCR iodyner CCR Related Blog - Update: Moved to here Eight or so Videos on Channel9.msdn.com CCR Patterns page on MS Robotics Studio - I haven't read this yet 4 x CCR Questions on Stackoverflow - Most of the questions have been Mine! LOL CCR and DSS toolkit has now been released to MSDN Members Do you have any good learning resources for the CCR? I really hope that Microsoft will publish more material, so far it has been too Robotics specific. I believe that MS needs to acknowledge that most people are using the CCR in issolation from the DSS and Robotics Studio. Update The Mix 2010 conference had a presentation by Myspace about how they have used the CCR framework in their middle tier. They also open sourced the code base. MySpace DataRelay Mix Video Presentation

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• drag and drop with jquery and php

  - by robertdd

  hy, i have a php array with the name of some images! i list all the images use this: $files = $_SESSION['files']; $imgid = $_POST['id']; if ($files){ foreach($files as $image ): print '<li id="liupimages">'."\n"; print '<a href="uploads/'.$image.'"><img id="'.$imgid.'" alt="'.$image.'" src="uploads/'.$image.'"></a>'."\n"; print "</li>\n"; endforeach; print <<<JS <script> $(".thumbs li a").click(function(){ var largePath = $(this).attr("href"); $('.thumbs li').removeClass('thumbac'); $(this).parent().addClass('thumbac'); $("#largeImg").hide() .attr({ src: largePath }) .load(function() { $(this).show(); }); return false; }); </script> JS; } i use jquery-ui to drag and drop images using this function: $(function() { $("#upimagesQueue").sortable({ opacity: 0.6, cursor: 'move', update: function() { //?? } }); }); after i drag and drop one image i want to be able to update the php array to! how to do this?

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• Objective-C function dispatch collisions; Or, how to achieve "namespaces"?

  - by fbrereto

  I have an application for Mac OS X that supports plugins that are intended to be loaded at the same time. Some of these plugins are built on top of a Cocoa framework that may receive updates in one plugin but not another. Given Objective-C's current method for function dispatching, any call from any plugin to a given Objective-C routine will go to the same routine every time. That means plugin A can find itself inside plugin B with a trivial Objective-C call! Obviously what we're looking for is for each plugin to interact with its own version of the framework upon which it was built. I have been reading some on Objective-C and this particular need, but haven't found a definitive solution for it yet. Update: My use of the word "framework" above is misleading: the framework is a statically-linked library, built into the plugin(s) that need it. The way Objective-C handles dispatching, however, even these statically linked pieces of disparate code will co-mingle in the Objective-C dispatcher, leading to unintended consequences. Update 2: I'm still a bit fuzzy on the answer provided here, as it doesn't seem to propose a solution as much as an unproven hypothesis.

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• div innerHTML problem with updatepanel

  - by asif

  I have an application developed in asp.net which set innerhtml of div. I am creating an html string to show googlemap. It works fine. But when I put my div inside update panel. it doesnt show googlemap in div. Here is my aspx file code: </td> </tr> <tr> <td colspan="4"> <asp:UpdatePanel ID="UpdatePanel2" runat="server"> <ContentTemplate> <div id="map_canvas" runat="server" style="width: 100%; height: 1500px; margin-bottom: 2px; text-align: center;"> <asp:Panel ID="Panel1" runat="server"> <%--Place holder to fill with javascript by server side code--%> <asp:Literal ID="js" runat="server"></asp:Literal> <%--Place for google to show your MAP--%> <div id="Div1" style="width: 100%; height: 728px; margin-bottom: 2px;"> </div> <br /> </asp:Panel> </div> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnShow" EventName="Click" /> </Triggers> </asp:UpdatePanel> </td> </tr> here is my button click event. protected void btnShow_Click(object sender, EventArgs e) { // works fine without update panel. map_canvas.InnerHtml = showMapWithPoints(); }

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• Thinking Sphinx with Rails - Delta indexing seems to work fine for one model but not for the other

  - by hack3r

  I have 2 models User and Discussion. I have defined the indices for the models as below: For the User model: define_index do indexes email indexes first_name indexes last_name, :sortable => true indexes groups(:name), :as => :group_names has "IF(email_confirmed = true and status = 'approved', true, false)", :as => :approved_user, :type => :boolean has "IF(email_confirmed = true and (status = 'approved' or status='blocked'), true, false)", :as => :approved_or_blocked_user, :type => :boolean has points, :type => :integer has created_at, :type => :datetime has user(:id) set_property :delta => true end For the Discussion model: define_index do indexes title indexes description indexes category(:title), :as => :category_title indexes tags(:title), :as => :tag_title has "IF(publish_to_blog = true AND sticky = false, true, false)", :as => :publish_to_main, :type => :boolean has created_at has updated_at, :type => :datetime has recent_activity_at, :type => :datetime has views_count, :type => :integer has featured has publish_to_blog has sticky set_property :delta => true end I have added a delta column to both tables as per the documentation. My problem is that delta indexing works only for the Discussion model and not for the User model. For ex: When I update the 'title' of a discussion, I can see the thinking sphinx is rotating the indices etc. (as is evident from the logs). But when I update the 'first_name' or the 'last_name' of a user, nothing happens. The User model also has a has_many :through association through a model called GroupsUser. I have setup a after_save on the GroupsUser as follows: def set_user_delta_flag user.delta = true user.save end Even this doesn't seem to trigger delta indexing on the User model. A similar setup for the Discussion model works perfectly! Can anyone tell me why this is happening?

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• PostgreSQL - Error: SQL state: XX000.

  - by rob

  I have a table in Postgres that looks like this: CREATE TABLE "Population" ( "Id" bigint NOT NULL DEFAULT nextval('"population_Id_seq"'::regclass), "Name" character varying(255) NOT NULL, "Description" character varying(1024), "IsVisible" boolean NOT NULL CONSTRAINT "pk_Population" PRIMARY KEY ("Id") ) WITH ( OIDS=FALSE ); And a select function that looks like this: CREATE OR REPLACE FUNCTION "Population_SelectAll"() RETURNS SETOF "Population" AS $BODY$select "Id", "Name", "Description", "IsVisible" from "Population"; $BODY$ LANGUAGE 'sql' STABLE COST 100 Calling the select function returns all the rows in the table as expected. I have a need to add a couple of columns to the table (both of which are foreign keys to other tables in the database). This gives me a new table def as follows: CREATE TABLE "Population" ( "Id" bigint NOT NULL DEFAULT nextval('"population_Id_seq"'::regclass), "Name" character varying(255) NOT NULL, "Description" character varying(1024), "IsVisible" boolean NOT NULL, "DefaultSpeciesId" bigint NOT NULL, "DefaultEcotypeId" bigint NOT NULL, CONSTRAINT "pk_Population" PRIMARY KEY ("Id"), CONSTRAINT "fk_Population_DefaultEcotypeId" FOREIGN KEY ("DefaultEcotypeId") REFERENCES "Ecotype" ("Id") MATCH SIMPLE ON UPDATE NO ACTION ON DELETE NO ACTION, CONSTRAINT "fk_Population_DefaultSpeciesId" FOREIGN KEY ("DefaultSpeciesId") REFERENCES "Species" ("Id") MATCH SIMPLE ON UPDATE NO ACTION ON DELETE NO ACTION ) WITH ( OIDS=FALSE ); and function: CREATE OR REPLACE FUNCTION "Population_SelectAll"() RETURNS SETOF "Population" AS $BODY$select "Id", "Name", "Description", "IsVisible", "DefaultSpeciesId", "DefaultEcotypeId" from "Population"; $BODY$ LANGUAGE 'sql' STABLE COST 100 ROWS 1000; Calling the function after these changes results in the following error message: ERROR: could not find attribute 11 in subquery targetlist SQL state: XX000 What is causing this error and how do I fix it? I have tried to drop and recreate the columns and function - but the same error occurs. Platform is PostgreSQL 8.4 running on Windows Server. Thanks.

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• Where can I find a list of 'Stop' words for Oracle fulltext search?

  - by Tyronomo

  I've a client testing the full text (example below) search on a new Oracle UCM site. The random text string they chose to test was 'test only'. Which failed; from my testing it seems 'only' is a reserved word, as it is never returned from a full text search (it is returned from metadata searches). I've spent the morning searching oracle.com and found this which seems pretty comprehensive, yet does not have 'only'. So my question is thus, is 'only' a reserved word. Where can I find a complete list of reserved words for Oracle full text search (10g)? Full text search string example; (<ftx>test only</ftx>) Update. I have done some more testing. Seems it ignores words that indicate places or times; only, some, until, when, while, where, there, here, near, that, who, about, this, them. Can anyone confirm this? I can't find this in on Oracle anywhere. Update 2. Post Answer I should have been looking for 'stop' words not 'reserved'. Updated the question title and tags to reflect.

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• jQuery code working in Safari and Chrome but not Firefox

  - by Chris Armstrong

  I'm got a site that has a long list of tweets, and as you scroll down the right column follows you down, showing stats on the tweets. (See it in action at http://www.grapevinegame.com . Click 'memorise', then 'skip' to get to the list page. Works in Safari and Chrome). I'm using jQuery to update the top-margin of the right column, increasing it as I scroll down. It seems to be working fine in webkit-based browsers, but doesn't budge in Firefox. Heres the code, the right column element is a div with id = "distance". // Listen for scroll function $(window).scroll(function () { // Calculating the position of the scrollbar var doc = $("body"), scrollPosition = $("body").scrollTop(), pageSize = $("body").height(), windowSize = $(window).height(), fullScroll = (pageSize) - windowSize; percentageScrolled = (scrollPosition / fullScroll); var entries = $("#whispers-list > li").length; // Set position of distance counter $('div#distance').css('margin-top', ($("#whispers-list").height()+$("#latest-whisper").height()+33)*percentageScrolled); // Update distance counter $('#distance-travelled').text(Math.round(distanceTravelled*(1-percentageScrolled))); $('#whispers-list li').each(function(index) { //highlight adjacent whispers if ($('#whispers-list li:nth-child('+(index+1)+')').offset().top >= $('#distance').offset().top && $('#whispers-list li:nth-child('+(index+1)+')').offset().top <= $('#distance').offset().top + $('#distance').height()) { // alert("yup"); $('#whispers-list li:nth-child('+(index+1)+') ul').fadeTo(1, 1); } else { $('#whispers-list li:nth-child('+(index+1)+') ul').fadeTo(1, 0.5); } }); }); Appreciate any help or advice!

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• Re-tweets and replies with JTwitter

  - by Samuh

  I have not used Twitter enough to become familiar with its terminology or the way it works, so please help me in understanding the problem I have at hand. I am getting last 20 status updates posted by some Twitter user via RSS feed, the feed XML is parsed and the statuses are displayed in a ListView. Which means that I have the original tweet in a String variable(row of ListView). When I click a ListView item, I get the option of "Re-tweeting" and "post reply". As, I understand it, when re-tweeting I will have to just update my *status* as: RT @orig-poster <original tweet> and when posting a reply I will have to just update my status as: @orig-poster <my tweet> I skimmed through the JavaDocs of the Jwitter library(Twitter class) and found a setStatus(String) method. I dont think I will have to make use of retweet() or reply() functions of the Twitter class in JTwitter library. Is my understanding correct? Please correct me if I am wrong here or missing anything. Thanks!

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• EF Forced Concurrency Checks

  - by Imran

  Hi, I have an issue with EF 4.0 that I hope someone can help with. I currently have an entity that I want to update in a last in wins fashion (i.e. ignore concurrency checks and just overwrite whats in the db with what is submitted). It seems Entity Framework not only includes the primary key of the entity in the where clause of the generated sql, but also any foreign key fields. This is annoying as it means that I don't get true last in wins semantics and need to know what value the fk field had before the update or I get a concurrency exception. I am aware that this can be short circuited by including a foreign key field as well as the navigation property on the entity. I would like to avoid this if possible as it's not a very clean solution. I was just wondering if there was any other way to override this behaviour? It seems like more of a bug than a feature. I have no problem with ef doing concurrency checks if I instruct it to do so but not being able to bypass concurrency completely is a bit of a hindrance as there are many valid scenarios where this is not needed

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• Making RDoc Ruby Gem Default on Mac OS X

  - by jkale

  Hey all, I've recently installed RDoc version (2.4.3) through Ruby gems to replace the one shipped with Mac OS X (version 1.0.1). Unfortunately, I can still only use RDoc 1.0.1 when I call run "rdoc" at the command line. rdoc -v returns: RDoc V1.0.1 - 20041108 I tried amending the $PATH variable to point the first entry to the RDoc 2.4.3 folder but no luck. I couldn't find anything about this online either, so I thought I'd ask here. Cheers! Update: Running "gem list -d --version 1.0.1 rdoc" returns: *** LOCAL GEMS *** rdoc (2.4.3) Authors: Eric Hodel, Dave Thomas, Phil Hagelberg, Tony Strauss Rubyforge: http://rubyforge.org/projects/rdoc Homepage: http://rdoc.rubyforge.org Installed at: /usr/local/lib/ruby/gems/1.8 RDoc is an application that produces documentation for one or more Ruby source files Therefore, it's definitely the Mac OSX version of RDoc that's interfering with the Gems version. Update 2: I found out, using: `bash --debugger rdoc` that the old version of RDoc was in /opt/local/bin. I deleted it and added my gems directory to my $PATH `export PATH=/usr/local/lib/ruby/gems/1.8/gems/` I now have a fresh working copy of the latest RDoc!

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• jQuery - hide if previous element has a particular class

  - by Tillebeck

  Hi I would like to hide all class="csc-content" where previous sibling is a h4 class="faq". UPDATE Error: I think this is wrong... the previous sibling is not h4. But I hope you get the point that all "answer" shall be hidden if the "question" has the class "faq" /UPDATE This is the html: <div id="centerCol-1"> <div id="c65" class="csc-default normal"> <div class="csc-header csc-header-n1"><h4 class="faq">FAQ question1</h4></div> <div class="csc-content active"><p class="bodytext">Answer1</p></div> </div> <div id="c67" class="csc-default normal"> <div class="csc-header csc-header-n2"><h4 class="faq">FAQ question2</h4></div> <div class="csc-content active"><p class="bodytext">Answer2</p></div> </div> <div id="c68" class="csc-default normal"> <div class="csc-header csc-header-n3"><h4>not FAQ</h4></div> <div class="csc-content active"><p class="bodytext">Not an answer, just normal content</p></div> </div> </div> jQuery should be something like: // find all outer divs with class csc-default in the div centerCol-1 // test if they contain a header div with an h4 class faq // go to next element and hide it. Error... this should be parents next element? $("#centerCol-1 .csc-default").find("h4").is(".faq").next(".csc-content").hide(); BR. Anders

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