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• How to use MSBuild to target multiple versions of .NET Framework?

  - by McKAMEY

  I am improving the builds for an open source project which currently supports .NET Framework v2.0, v3.5, and now v4.0. Up until now, I've restricted myself to v2.0 to ensure compatibility, but with VS2010 I am interested in having real targeted builds. I'm looking for some guidance on how to edit the MSBuild csproj/soln to be able to cleanly produce builds for each target. I'm willing to have complexity in the csproj and in a batch file to control the build. My goal is to be able to have a command line script that could produce the builds without needing Visual Studio installed, but only the necessary .NET Framework(s). Ideally, I'd like to minimize dependencies on additional software (e.g. NAnt). I'm pretty sure this can be done but am having trouble finding a definitive guide on setting it up and best practices. Bonus: my next step after getting this set up will be to better support Mono Framework. Any help on doing this same thing for Mono would be much appreciated.

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• Viewing namespaced global variables in Visual Studio debugger?

  - by Chris

  When debugging a non-managed C++ project in Visual Studio 2008, I occasionally want to see the value of a global variable. We don't have a lot of these but those that are there all declared within a namespace called 'global'. e.g. namespace global { int foo; bool bar; ... } The problem is that when the code is stopped at a breakpoint, the default debugging tooltip (from pointing at the variable name) and quickwatch (shift-f9 on the variable name) don't take the namespace into consideration and hence won't work. So for example I can point at 'foo' and nothing comes up. If I shift-f9 on foo, it will bring up the quickwatch, which then says 'CXX0017: Error: symbol "foo" not found'. I can get around that by manually editing the variable name in the quickwatch window to prefix it with "global::" (which is cumbersome considering you have to do it each time you want to quickwatch), but there is no fix for the tooltip that I can work out. Setting the 'default namespace' of the project properties doesn't help. How can I tell the VS debugger to use the namespace that it already knows the variable is declared in (since it has the declaration right there), or, alternatively, tell it a default namespace to look for variables in if it doesn't find them? My google-fu has failed to find an answer. This report lists the same problem, with MS saying it's "by design", but even so I am hoping there is some way to work around it (perhaps with clever use of autoexp.dat?)

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• Magic Methods in Python

  - by dArignac

  Howdy, I'm kind of new to Python and I wonder if there is a way to create something like the magic methods in PHP (http://www.php.net/manual/en/language.oop5.overloading.php#language.oop5.overloading.methods) My aim is to ease the access of child classes in my model. I basically have a parent class that has n child classes. These classes have three values, a language key, a translation key and a translation value. The are describing a kind of generic translation handling. The parent class can have translations for different translation key each in different languages. E.g. the key "title" can be translated into german and english and the key "description" too (and so far and so on) I don't want to get the child classes and filter by the set values (at least I want but not explicitly, the concrete implementation behind the magic method would do this). I want to call parent_class.title['de'] # or also possible maybe parent_class.title('de') for getting the translation of title in german (de). So there has to be a magic method that takes the name of the called method and their params (as in PHP). As far as I dug into Python this is only possible with simple attributes (_getattr_, _setattr_) or with setting/getting directly within the class (_getitem_, _setitem_) which both do not fit my needs. Maybe there is a solution for this? Please help! Thanks in advance!

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• How do you make a static sprite be a child of another sprite in cocos2D while using SpaceManager

  - by JJBigThoughts

  I have two static (STATIC_MASS) SpaceManager sprites. One is a child of the other - by which I mean that one sort of builds up the other one, but although the child's images shows up in the right place, the child doesn't seem to exists in the chipmunk physics engine, like I would expect. In my case, I have a backboard (rectangular sprite) and a hoop (a circular sprite). Since I might want to move the backboard, I'd like to attach the hoop to backboard so that the hoop automatically moves right along with the backboard. Here, we see a rotating backboard with attached hoop. It looks OK on the screen, but other objects only bounce off the backboard but pass right through the hoop (in a bad sense of the term). What doesn't my child sprite seem to exist in the physics engine? // Add Backboard cpShape *shapeRect = [smgr addRectAt:cpvWinCenter mass:STATIC_MASS width:200 height:10 rotation:0.0f ];// We're upgrading this cpCCSprite * cccrsRect = [cpCCSprite spriteWithShape:shapeRect file:@"rect_200x10.png"]; [self addChild:cccrsRect]; // Spin the static backboard: http://stackoverflow.com/questions/2691589/how-do-you-make-a-sprite-rotate-in-cocos2d-while-using-spacemanager // Make static object update moves in chipmunk // Since Backboard is static, and since we're going to move it, it needs to know about spacemanager so its position gets updated inside chipmunk. // Setting this would make the smgr recalculate all static shapes positions every step // cccrsRect.integrationDt = smgr.constantDt; // cccrsRect.spaceManager = smgr; // Alternative method: smgr.rehashStaticEveryStep = YES; smgr.rehashStaticEveryStep = YES; // Spin the backboard [cccrsRect runAction:[CCRepeatForever actionWithAction: [CCSequence actions: [CCRotateTo actionWithDuration:2 angle:180], [CCRotateTo actionWithDuration:2 angle:360], nil] ]]; // Add the hoop cpShape *shapeHoop = [smgr addCircleAt:ccp(100,-45) mass:STATIC_MASS radius: 50 ]; cpCCSprite * cccrsHoop = [cpCCSprite spriteWithShape:shapeHoop file:@"hoop_100x100.png"]; [cccrsRect addChild:cccrsHoop]; This is only half working for me. Note: SpaceManager is a toolkit for working with cocos2D-iphone

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• Drag/drop problem (draggable in position:relative parent)

  - by MackDaddy

  Here's the scenario, I'm using prototype and scriptaculous, but I believe jquery would have the same issue. I have a list draggable images in a relatively positioned div. The problem is I can't drag the images out of the parent div... well... you can, they're just not visible. If you remove the position:relative on the parent div, it works just fine, I can drag items out of the div perfectly. However because of this little IE7 bug: http://snook.ca/archives/html%5Fand%5Fcss/position%5Frelative%5Foverflow%5Fie/ that position:relative is required. IS there another work around to this bug that does not require setting position? I've tried playing with z-index and everything I can think of to no avail. Here's the CSS for the box: #products{ width: 680px; height: 400px; border: 1px solid gray; /*background-color: #66FF00;*/ overflow-y: scroll; overflow-x: hidden; font-family:"Helvetica Neue","Helvetica"; font-size:12px; font-weight:bold; position: relative; } If you would like to see this bug in action, you can visit it here: http://twinmed-dev.com/template%5Fadd.php. Try searching for an item like "gloves" then adding it to the cart below. Thanks for any help.

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• restrict script inside iframe to run only within pages of same top-level domain?

  - by Justin Grant

  I'd like to enforce a requirement that client script inside a page (which in turn is loaded inside an iframe of another page) will only run when the parent page is on the same top-level domain as the framed page (although it may be on another hostname in that domain). Is this do-able? I assume that the easy solution of looking at top.location.host won't be available due to cross-site scripting limitations, but I'm wondering if other javascript hackery could suffice. Constraints on any potential solution inculde: I need to be able to run XmlHttpRequest calls inside the child page, and I need to validate that the hostname is in the same domain before I make those calls. (this makes a document.domain solution challenging because AFAIK setting document.domain disables the ability to make XmlHttpRequest calls. I can control client-side script and HTML on both parent or child (and I can create new pages if needed), but I can't make any server-side code changes. I can't simulate the above via server-side calls or proxies, because the child page's hostname uses a forms auth system with hostname-scoped cookies that I can't get access to from the parent page since it's on a different hostname. I don't have enough control over the child-frame site to be able to put both sites behind the same reverse-proxy or load-balancer (which would enable me to put both sites on the same hostname). I don't actually need to access any UI inside the IFrame-- the iframe is invisible and I'm only using it to run javascript within the security context of a site on a different hostname from the parent page. So at this point I'm stumped. Got any ideas? I want to make sure I'm not overlooking an easy solution before giving up.

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• Same font, character spacing and line-height but different results

  - by Ben Huh

  The introduction of @font-face in CSS3 allows web designers to use fonts that look the same across all browsers. That is what I thought until trying it out with the following code in jsFiddle: HTML: <div> The_Quick_Brown<br> Fox_Jumps_Over<br> The_Lazy_Dog </div> CSS: @font-face { font-family: 'Open Sans'; font-style: normal; font-weight: 400; src: url('http://themes.googleusercontent.com/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff') format('woff'); } div { display: block; width: 496px; height: 86px; font-size: 1.3em; font-family: 'Open Sans'; font-style: normal; margin: 0; border: 0; padding: 0; background: cyan; letter-spacing: 1.44em; line-height: 1.44; overflow: hidden; } This is the view from Firefox 12.0. Take note of the partially obscured 'o' in 'brown', the position of 'g' in 'dog' and the underscore '_' at the bottom edge. This is the view from Google Chrome 19.0. Despite explicitly setting letter-spacing and line-height for the same font, why are the results still different?

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• java logging nightmare and log4j not behaving as expected with spring + tomcat6

  - by maverick

  I have a spring application that has configured log4j (via xml) and that runs on Tomcat6 that was working fine until we add a bunch of dependencies via Maven. At some point the whole application just started logging part of what it was supposed to be declared into the log4.xml "a small rant here" Why logging has to be that hard in java world? why suddenly an application that was just fine start behaving so weird and why it's so freaking hard to debug? I've been reading and trying to solve this issue for days but so far no luck, hopefully some expert here can give me some insights on this I've added log4j debug option to check whether log4j is taking reading the config file and its values and this is what part of it shows log4j: Level value for org.springframework.web is [debug]. log4j: org.springframework.web level set to DEBUG log4j: Retreiving an instance of org.apache.log4j.Logger. log4j: Setting [org.compass] additivity to [true]. log4j: Level value for org.compass is [debug]. log4j: org.compass level set to DEBUG As you can see debug is enabled for compass and spring.web but it only shows "INFO" level for both packages. My log4j config file has nothing out of extraordinary just a plain ConsoleAppender <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> <!-- Appenders --> <appender name="console" class="org.apache.log4j.ConsoleAppender"> <param name="Target" value="System.out" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%-5p: %c - %m%n" /> </layout> </appender> What's the trick to make this work? What it's my misunderstanding here? Can someone point me in the right direction and explain how can I make this logging mess more bullet proof?

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• How to stop Android GPS using "Mobile data"

  - by prepbgg

  My app requests location updates with "minTime" set to 2 seconds. When "Mobile data" is switched on (in the phone's settings) and GPS is enabled the app uses "mobile data" at between 5 and 10 megabytes per hour. This is recorded in the ICS "Data usage" screen as usage by "Android OS". In an attempt to prevent this I have unticked Settings-"Location services"-"Google's location service". Does this refer to Assisted GPS, or is it something more than that? Whatever it is, it seems to make no difference to my app's internet access. As further confirmation that it is the GPS usage by my app that is causing the mobile data access I have observed that the internet data activity indicator on the status bar shows activity when and only when the GPS indicator is present. The only way to prevent this mobile data usage seems to be to switch "Mobile data" off, and GPS accuracy seems to be almost as good without the support of mobile data. However, it is obviously unsatisfactory to have to switch mobile data off. The only permissions in the Manifest are "android.permission.ACCESS_FINE_LOCATION" (and "android.permission.WRITE_EXTERNAL_STORAGE"), so the app has no explicit permission to use internet data. The LocationManager code is ` criteria.setAccuracy(Criteria.ACCURACY_FINE); criteria.setSpeedRequired(false); criteria.setAltitudeRequired(false); criteria.setBearingRequired(true); criteria.setCostAllowed(false); criteria.setPowerRequirement(Criteria.NO_REQUIREMENT); bestProvider = lm.getBestProvider(criteria, true); if (bestProvider != null) { lm.requestLocationUpdates(bestProvider, gpsMinTime, gpsMinDistance, this); ` The reference for LocationManager.getBestProvider says If no provider meets the criteria, the criteria are loosened ... Note that the requirement on monetary cost is not removed in this process. However, despite setting setCostAllowed to false the app still incurs a potential monetary cost. What else can I do to prevent the app from using mobile data?

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• How do you fix issues with the debugger for the Android plug-in for Eclipse not attaching?

  - by user279112

  I have been trying to program something for the Android mobile phone, using Eclipse and the Android plug-in for that IDE, and my debugger used to attach just fine. But then it has suddenly started having consistent issues attaching. I just get that message about how the process is waiting for the debugger attach, and then it just won't. What determines whether the attachment glitches so seems to have something to do with what the code is that I'm trying to debug, as it seems to be drastically more of an issue with some versions of my code than with others (on the same app). How do I fix this? Now before you answer, please understand that I have researched this issue already. I have found a couple of solutions that have worked with other people, but which do not work for me. One of which is setting the debuggable property in the main manifest file as true, and the other is going into Dev Tools and into some settings menu, and from there selecting the process and essentially saying to the fake phone, "Debug this process". Neither has really worked. Any other ideas? And just in case...I've run into one blasted technical issue like this after another trying to program for that stupid phone. And I'm not the only one who's having these issues; when I go online to research these issues, it is always very easy for me to find many people who have the same issues, and who are having to use the shottiest, sloppiest, most "ghetto" solutions to work around these issues. I know that many people have created good applications for that phone, but I don't see how I'm supposed to do that when the SDK and the plug-in just don't work half the time. Does anybody know how I may put all this trash behind me, once and for all? Thanks for your answers to either question!

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• Why won't SWFUpload execute the upload.aspx code, and why is it saving all files to the root directo

  - by Nathan Fast

  I am using SWFUpload v2.2. In IE (8):   If I upload a very tiny file (16kb):      1) The file appears in the root directory where upload.aspx is located.      2) Page_Load on upload.aspx.cs is executed.      3) The file is actually processed by the Page_Load procedure, and the processed file is saved in the correct location.   If I upload a normal file (1.5 MB):      1) The file appears in the root directory where upload.aspx is located. In Firefox (3.5.7):   No matter what size the file is, it:      1) The file appears in the root directory where upload.aspx is located. I have maxRequestLength="30000" executionTimeout="3000" in the web.config just to be sure. In the setting object for the constructor I have:   file_size_limit: "10 MB",   file_types: ".",   file_types_description: "All Files", So my questions are:   How is the file getting saved in the root directory (and why)?   Why does Page_Load only execute when I am using IE and uploading very tiny files?

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• Programmatically change an EditorGrid's cell value

  - by Snowright

  Hi, I have an Editor Grid where if a specific cell is in focus (is being edited), a window containing a tree panel pops up allowing the user to choose a node from the treepanel as the new value of the cell. This way, the user isn't actually editing the cell in question, but is using the window to choose the new value. However, I am having difficulties setting the value of the cell in question programmatically. Below is the code I use to set the grid up, including the column model that chooses what editor to use for a cell depending on the value type: var editorCM = new Ext.grid.ColumnModel({ //config ,editors : { //rest of editors 'id' : new Ext.grid.GridEditor(new Ext.form.TextField({readOnly : true})) } ,getCellEditor : function(col, row) { //choose editor depending on the type value of a cell } }) var editorGrid = new Ext.grid.EditorGridPanel({ //rest of config ,cm : editorCM }) Below is my code to change the cell's value once the user chooses from the treepanel. function submitNode(newValue) { var temp = editorGrid.GetSelectionModel().getSelectedCell(); //returns array containing column and row position of selected cell, which value we want to change. //temp[1] = column index, temp[0] = row index //Gets the cell editor at specific position and sets new value for that cell editorGrid.getColumnModel().getCellEditor(temp[1], temp[0]).setValue(newValue); } I've also tried a few other ways (all including setValue(newValue)), but have come up empty handed. I've looked through the API and the ExtJS forums for any clue but have also come up empty handed.

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• Installing Sphinx on App Engine - possible?

  - by Pekka

  Following up on my last year's question on documentation, I now want to get started and try out Python-based Sphinx for putting together the developer documentation for a PHP CMS I've been working on. Instead of setting up Python locally on my workstation, I would like to run it on a publicly accessible web server from the start. All the web hosting packages I have access to run on the LAMP stack, and I'm reluctant to buy Python-based hosting. I am very interested in the Google App Engine, the free quotas they provide will do for me a hundred times over, and even if not, their pricing looks very reasonable. Now I have zero knowledge of Python - getting Sphinx to work would be my first contact with it - and very little time. As far as I understand, the platform and python libraries the App Engine provides are very compatible to a standard Python library but not identical. So my question is: Can Sphinx run on App Engine at all? Is installing Sphinx on the App Engine as straightforward as if I would install it on top of a normal Python installation? Or will the App Engine's environment require tweaking of the source code that I can't perform in reasonable time with my current level of Python? Should I be installing Sphinx on a local server and a "normal" Python stack instead first? Does anybody know any helpful How-to's, tutorials or other resources for this?

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• jqGrid Sort or Search does not work with columns having json dot notation

  - by rsmoorthy

  I have this jqGrid: $("#report").jqGrid( { url: '/py/db?coll=report', datatype: 'json', height: 250, colNames: ['ACN', 'Status', 'Amount'], colModel: [ {name:'acn', sortable:true}, {name:'meta.status', sortable:true}, {name:amount} ], caption: 'Show Report', rownumbers: true, gridview: true, rowNum: 10, rowList: [10,20,30], pager: '#report_pager', viewrecords: true, sortname: 'acn', sortorder: "desc", altRows: true, loadonce: true, mtype: "GET", rowTotal: 1000, jsonReader: { root: "rows", page: "page", total: "total", records: "records", repeatitems: false, id: "acn" } }); Notice that the column 'meta.status' is in JSON dot notation and accordingly the data sent from the server is like this: {"page": "1", "total": "1", "records": "5", "rows": [ {"acn":1,"meta": {"status":"Confirmed"}, "amount": 50}, {"acn":2,"meta": {"status":"Started"}, "amount": 51}, {"acn":3,"meta": {"status":"Stopped"}, "amount": 52}, {"acn":4,"meta": {"status":"Working"}, "amount": 53}, {"acn":5,"meta": {"status":"Started"}, "amount": 54} ] } The problems are of two fold: Sorting does not work on columns with dot notation, here "meta.status". It does not even show the sortable icons on the column header, and nothing happens even if the header is clicked. Sorting does not work, whether loadonce is true or false. If I try Searching (after setting loadonce to true) for the column meta.status (other columns without dot notation is okay), then it throws up a javascript error like this. Any help? Thanks Moorthy

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• Installing Ruby via rbenv fails

  - by Maximus S

  Problem: I installed ruby, but it is not recognized correctly. I'm following the deploying to VPS: https://github.com/railscasts/335-deploying-to-a-vps I am setting my server on ubuntu 12.04 LTS to deploy my rails app. I'm following the railscast on deploying to a VPS, and trying to install ruby through rbenv. It seemed everything was installed correctly, but when I tried to check the ruby version, it gave me errors. The following are the commands that I ran. deployer@max:~$ rbenv install 1.9.3-p125 Downloading yaml-0.1.4.tar.gz... -> http://cloud.github.com/downloads/sstephenson/ruby-build-download-mirror/36c852831d02cf90508c29852361d01b Installing yaml-0.1.4... Installed yaml-0.1.4 to /home/deployer/.rbenv/versions/1.9.3-p125 Downloading ruby-1.9.3-p125.tar.gz... -> http://cloud.github.com/downloads/sstephenson/ruby-build-download-mirror/e3ea86b9d3fc2d3ec867f66969ae3b92 Installing ruby-1.9.3-p125... Installed ruby-1.9.3-p125 to /home/deployer/.rbenv/versions/1.9.3-p125 Downloading rubygems-1.8.23.tar.gz... -> http://cloud.github.com/downloads/sstephenson/ruby-build-download-mirror/178b0ebae78dbb46963c51ad29bb6bd9 Installing rubygems-1.8.23... Installed rubygems-1.8.23 to /home/deployer/.rbenv/versions/1.9.3-p125 deployer@max:~$ rbenv global 1.9.3-p125 deployer@max:~$ ruby -v 'ruby' program can be found in the following packages: * ruby1.8 * ruby1.9.1 How do I solve this?

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• Accessing the stringValue from NSTextFields on different NIBs

  - by Kyle Zaragoza

  I'm having an extremely difficult time trying to access information from an object (e.g. an NSTextField) that is located on a NIB other than my "MainMenu.nib". My current setup: I have a MainMenu.xib that contains only a toolbar at the top and an NSView. I have four other .xib files containing custom NSViews and each of their File Owner's are assigned to a NSViewController subclass which I have created for each. My MainMenu.xib contains an object that is set to my WindowController subclass that takes care of swapping the fours views into the NSView on my MainMenu.xib. All of this works fantastic. Where I have a problem: I have another class that acts as the brains to my application which sends and receives data from an online server, all of the methods I have created rely on inputs from the user that are located on the individual .xibs that swap into my MainMenu.xib's NSview. Unfortunately I have no idea on how to grab the information from the NSTextFields, textViews, etc. that are located on my individual .xib files. What I've tried: I have tried setting the File Owner's of the four individual .xibs to my "brains" class and connecting outlets defined in my "brains".h, but when I call [textField stringValue] I receive a NULL response. I'm thinking this is because I'm creating multiple instances of my "brains" class but not totally sure. Any help on accessing information from textFields from other nibs would be a great benefit, thanks in advance.

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• C programming: Dereferencing pointer to incomplete type error

  - by confusedKid

  Hi, I am pretty rusty at C, and I'm getting a dereferencing error. Hopefully someone can help me with this? ^_^ I have a struct defined as: struct { char name[32]; int size; int start; int popularity; } stasher_file; and an array of pointers to those structs: struct stasher_file *files[TOTAL_STORAGE_SIZE]; In my code, I'm making a pointer to the struct and setting its members, and adding it to the array: ... struct stasher_file *newFile; strncpy(newFile-name, name, 32); newFile-size = size; newFile-start = first_free; newFile-popularity = 0; files[num_files] = newFile; ... I'm getting a "error: dereferencing pointer to incomplete type" whenever I try to access the members inside newFile. What am I doing wrong? Thanks very much for any help :)

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• How do I reliably get the size of my iPhone view taking rotations into consideration?

  - by Sebastian Celis

  My application uses a UITabBarController, multiple UINavigationControllers, and supports autorotation. In order to properly layout the subviews within each UIViewController's main view, I really need to know the size available to the UIViewContoller. I need this size to take the UINavigationBar, the UITabBar, and the status bar all into account, and thus only return the size available to the content view. I thought for sure I could use the following from within the UIViewController's code: CGRect viewControllerBounds = [[self view] bounds]; However, there are a couple of issues with this approach: The first time the view is loaded, viewControllerBounds reports the view as being 320 pixels wide by 460 pixels tall. This is wrong. With a status bar and a navigation bar showing, the height should only be 416 pixels. However, if I rotate the simulator to landscape and then rotate back, the height of viewControllerBounds changes to 416. If I rotate the first view in the navigation controller to landscape mode and then push another view controller onto the stack, viewControllerBounds for the new view reports a width of 300 pixels and a height of 480 pixels. So the view's bounds didn't even take the rotation into account. Is there a better way to do this? I really don't want to have to start hardcoding the widths and heights of all the various UI elements the iPhone OS provides. I have tried setting the autoresizing mask of the UIViewController's view, but that doesn't seem to change anything. The views definitely seem to be displaying properly. When I set a background color that view looks like it takes up all of the space available to it. Any pointers would be greatly appreciated.

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• Java assignment issues - Is this atomic?

  - by Bob

  Hi, I've got some questions about Java's assigment. Strings I've got a class: public class Test { private String s; public synchronized void setS(String str){ s = s + " - " + str; } public String getS(){ return s; } } I'm using "synchronized" in my setter, and avoiding it in my getter, because in my app, there are a tons of data gettings, and very few settings. Settings must be synchronized to avoid inconsistency. My question is: is getting and setting a variable atomic? I mean, in a multithreaded environment, Thread1 is about to set variable s, while Thread2 is about to get "s". Is there any way the getter method could get something different than the s's old value or the s's new value (suppose we've got only two threads)? In my app it is not a problem to get the new value, and it is not a problem to get the old one. But could I get something else? What about HashMap's getting and putting? considering this: public class Test { private Map<Integer, String> map = Collections.synchronizedMap(new HashMap<Integer, String>()); public synchronized void setMapElement(Integer key, String value){ map.put(key, value); } public String getValue(Integer key){ return map.get(key); } } Is putting and getting atomic? How does HashMap handle putting an element into it? Does it first remove the old value and put the now one? Could I get other than the old value or the new value? Thanks in advance!

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• Fastcgi 500 error on preg_match_all in PHP

  - by Bertvan

  Hi, I'm trying to set up some exotic PHP code (I'm no expert), and I get a FastCGI Error 500 on a PHP line containing 'preg_match_all'. When I comment out the line, the page is returned with a 200 (but not how it was meant to be). The code is parsing php, html and javascript content loaded from the database and is composing them to return the finished page. Now, by placing around some error_log entries I could determine that the line with the preg_match_all is the cause of the 500. However the line is hit multiple times during the loading of the page and on other occasions, the line does not cause an error. Here's how it looks like exactly: preg_match_all ("/(<([\w]+)[^>]*>)((?:.|\n)*)(<\/\\2>)/", $part['data'], $tags, PREG_PATTERN_ORDER|PREG_OFFSET_CAPTURE); The subject string is a piece of text that looks like: <script> ... some javascript functions ... </script> [Edit:] This is code that is up and running correctly elsewhere, so this very well could be a PHP setting or environment difference. I'm using PHP 5.2.13 on IIS6 with FastCGI. [Edit:] Nothing is mentioned in the log files. At least not in the ones I checked: IIS Logs Event Logs PHP Log Any thoughts or direction would be welcome.

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• ActiveRecord exceptions not rescued

  - by zoopzoop

  I have the following code block: unless User.exist?(...) begin user = User.new(...) # Set more attributes of user user.save! rescue ActiveRecord::RecordInvalid, ActiveRecord::RecordNotUnique => e # Check if that user was created in the meantime user = User.exists?(...) raise e if user.nil? end end The reason is, as you can probably guess, that multiple processes might call this method at the same time to create the user (if it doesn't already exist), so while the first one enters the block and starts initializing a new user, setting the attributes and finally calling save!, the user might already be created. In that case I want to check again if the user exists and only raise the exception if it still doesn't (= if no other process has created it in the meantime). The problem is, that regularly ActiveRecord::RecordInvalid exceptions are raised from the save! and not rescued from the rescue block. Any ideas? EDIT: Alright, this is weird. I must be missing something. I refactored the code according to Simone's tip to look like this: unless User.find_by_email(...).present? # Here we know the user does not exist yet user = User.new(...) # Set more attributes of user unless user.save # User could not be saved for some reason, maybe created by another request? raise StandardError, "Could not create user for order #{self.id}." unless User.exists?(:email => ...) end end Now I got the following exception: ActiveRecord::RecordNotUnique: Mysql::DupEntry: Duplicate entry '[email protected]' for key 'index_users_on_email': INSERT INTO `users` ... thrown in the line where it says 'unless user.save'. How can that be? Rails thinks the user can be created because the email is unique but then the Mysql unique index prevents the insert? How likely is that? And how can it be avoided?

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• Rails - CSV export: prompt for file download

  - by Pierre

  Hello, I want to give my users the ability to export a table to CSV. So in my controller, I've added on top of the file: respond_to :html, :js, :csv I'm also setting the headers if the requested format is csv: if params[:format] == 'csv' generate_csv_headers("negotiations-#{Time.now.strftime("%Y%m%d")}") end Code for generate_csv_headers(in application_controller) is: def generate_csv_headers(filename) headers.merge!({ 'Cache-Control' => 'must-revalidate, post-check=0, pre-check=0', 'Content-Type' => 'text/csv', 'Content-Disposition' => "attachment; filename=\"#{filename}\"", 'Content-Transfer-Encoding' => 'binary' }) end I've also created a view named index.csv.erb to generate my file: <%- headers = ["Id", "Name"] -%> <%= CSV.generate_line headers %> <%- @negotiations.each do |n| -%> <%- row = [ n.id, n.name ] -%> <%= CSV.generate_line row %> <%- end -%> I don't have any error, but it simply displays the content of the CSV file, while I'd expect a prompt from the browser to download the file. I've read a lot, but could not find anything that'd work. Do you have an idea? thanks, p.

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• Sphinx - Python modules, classes and functions documentation

  - by user343934

  Hi everyone, I am trying to document my small project through sphinx which im recently trying to get familiar with. I read some tutorials and sphinx documentation but couldn't make it. Setup and configurations are ok! just have problems in using sphinx in a technical way. My table of content should look like this --- Overview .....Contents ----Configuration ....Contents ---- System Requirements .....Contents ---- How to use .....Contents ---- Modules ..... Index ......Display ----Help ......Content Moreover my focus is on Modules with docstrings. Details of Modules are Directory:- c:/wamp/www/project/ ----- Index.py >> Class HtmlTemplate: .... def header(): .... def body(): .... def form(): .... def header(): .... __init_main: ##inline function ----- display.py >> Class MainDisplay: .... def execute(): .... def display(): .... def tree(): .... __init_main: ##inline function My Documentation Directory:- c:/users/abc/Desktop/Documentation/doc/ --- _build --- _static --- _templates --- conf.py --- index.rst I have added Modules directory to the system environment and edited index.rst with following codes just to test Table of content. But i couldn't extract docstring directly Index.rst T-Alignment Documentation The documentation covers general overview of the application covering functionalities and requirements in details. To know how to use application its better to go through the documentation. .. _overview: Overview .. _System Requirement: System Requirement Seq-alignment tools can be used in varied systems base on whether all intermediary applications are available or not like in Windows, Mac, Linux and UNIX. But, it has been tested on the Windows working under a beta version. System Applications Server .. _Configuration:: Configuration Basic steps in configuration involves in following categories Environment variables Apache setting .. _Modules:: Modules How can i continue from here... Moreover, i am just a beginner to sphinx documentation tool I need your suggestions to brings my modules docstring to my documentation page Thanks

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• WCF service consuming passively issued SAML token

  - by Neillyboy

  What is the best way to pass an existing SAML token from a website already authenticated via a passive STS? We have built an Identity Provider which is issuing passive claims to the website for authentication. We have this working. Now we would like to add some WCF services into the mix - calling them from the context of the already authenticated web application. Ideally we would just like to pass the SAML token on without doing anything to it (i.e. adding new claims / re-signing). All of the examples I have seen require the ActAs sts implementation - but is this really necessary? This seems a bit bloated for what we want to achieve. I would have thought a simple implementation passing the bootstrap token into the channel - using the CreateChannelActingAs or CreateChannelWithIssuedToken mechanism (and setting ChannelFactory.Credentials.SupportInteractive = false) to call the WCF service with the correct binding (what would that be?) would have been enough. We are using the Fabrikam example code as reference, but as I say, think the ActAs functionality here is overkill for what we are trying to achieve.

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• SharePoint randomly replacing file names in web parts?

  - by nvuono

  Ok SharePoint is driving me crazy and I need to see if anyone has encountered a similar problem or knows of a solution: I have a content editor webpart with some HTML including links to PDF files that I've modified slightly to append an employee number querystring ie: <a href="http://moss.company.com/group/home/EPermits /Blank%20Form%20Templates/_blank_breach_permit.pdf?empNum=">New Breach Permit</a> And SharePoint seems to randomly replace the filename with aab04168 or some other similar characters: <a href="http://moss.company.com/group/home/EPermits /Blank%20Form%20Templates/aab04168?empNum=">New Breach Permit</a> After this happened a few times with no explanation I tried changing the content editor webpart to look directly at a documentLinks.html file located in the Shared Documents folder of the SharePoint site and guess what... SharePoint edited that document and replaced my filenames with random characters in there too! Figuring that filenames beginning with an underscore could be triggering some internal SharePoint procedures I've renamed all the files to remove the starting underscore--unfortunately the problem isn't immediately reproducible and I'm waiting right now to see if I run into any more trouble. edit: the underscore in the filename didn't help... my documentLinks.html wound up getting modified and all the hrefs were replaced with random characters again. Now I'm setting the hrefs in javascript with the filename text concatenated together from multiple strings. linkEle.href = ".../EPermits/Blank%20Form%20Templates/blank" + "_Chemical_Usage.pdf?empNum=" + empNumber;

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