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  • rails 3 how to automatically post user_id in column of comments

    - by user568502
    hi, im totally new to rails. here my question: i made an app with articles and comments and use devise for authentication sadly im only able to post 1 hyperlink so this is the middle part of my post with the files at gist: https://gist.github.com/771366 the article_id is pre selected in the comments/_form - but the user_id isnt. i googled a lot, tried value = session[:user_id] and others, but nothing worked would be great if someone could tell me how it works ^^ thx

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  • What is user gcc's purpose in requesting code possibly like this?

    - by James Morris
    In the question between syntax, are there any equal function the user gcc is requesting only what I can imagine to be the following code: #include <stdio.h> #include <string.h> /* estimated magic values */ #define MAXFUNCS 8 #define MAXFUNCLEN 3 int the_mainp_compare_func(char** mainp) { char mainp0[MAXFUNCS][MAXFUNCLEN] = { 0 }; char mainp1[MAXFUNCS][MAXFUNCLEN] = { 0 }; char* psrc, *pdst; int i = 0; int func = 0; psrc = mainp[0]; printf("scanning mainp[0] for functions...\n"); while(*psrc) { if (*psrc == '\0') break; else if (*psrc == ',') ++psrc; else { mainp0[func][0] = *psrc++; if (*psrc == ',') { mainp0[func][1] = '\0'; psrc++; } else if (*psrc !='\0') { mainp0[func][1] = *psrc++; mainp0[func][2] = '\0'; } printf("function: '%s'\n", mainp0[func]); } ++func; } printf("\nscanning mainp[1] for functions...\n"); psrc = mainp[1]; func = 0; while(*psrc) { if (*psrc == '\0') break; else if (*psrc == ',') ++psrc; else { mainp1[func][0] = *psrc++; if (*psrc == ',') { mainp1[func][1] = '\0'; psrc++; } else if (*psrc !='\0') { mainp1[func][1] = *psrc++; mainp1[func][2] = '\0'; } printf("function: '%s'\n", mainp1[func]); } ++func; } printf("\ncomparing functions in '%s' with those in '%s'\n", mainp[0], mainp[1] ); int func2; func = 0; while (*mainp0[func] != '\0') { func2 = 0; while(*mainp1[func2] != '\0') { printf("comparing %s with %s\n", mainp0[func], mainp1[func2]); if (strcmp(mainp0[func], mainp1[func2++]) == 0) return 1; /* not sure what to return here */ } ++func; } /* no matches == failure */ return -1; /* not sure what to return on failure */ } int main(int argc, char** argv) { char* mainp[] = { "P,-Q,Q,-R", "R,A,P,B,F" }; if (the_mainp_compare_func(mainp) == 1) printf("a match was found, but I don't know what to do with it!\n"); else printf("no match found, and I'm none the wiser!\n"); return 0; } My question is, what is it's purpose?

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  • File Operations in Java

    - by Amir Rachum
    I'm working on a small application in Java that takes a directory structure and renames the files according to a certain format, after parsing the original name. What is the best Java class / methodology to use in order to facilitate these file operations? Edit: the question is only regarding the file operations part, I got the "getting the formatted name" down :)

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  • Identifying Swing component at a particular screen coordinate? (And manually dispatching MouseEvents

    - by DVA
    I'm doing some work making a Java app compatible with alternative input devices. Unfortunately, the device in question has a Java API that's barely into the alpha stages right now, so it's pretty poor. What I need to do is essentially set up a replacement structure for the dispatch of MouseEvents. Does anyone know if there's a way in Swing to take a screen coordinate and find out what Swing component is displayed on top at that screen point?

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  • Android: how to get the walking distance between two geo coordinats?

    - by wei
    I used this query URL http://maps.google.com/maps?q=from+A+to+B&output=kml ,which is given in the answer to this question. But after I tried it, it doesn't work with coordinates. It works with address names tho. I guess I could use google's geocoding to get the addresses first. But I wonder if there is another way to get the walking distance between two coordinates?

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  • How do I mock/fake/replace/stub a base class at unit-test time in C#?

    - by MatthewMartin
    UPDATE: I've changed the wording of the question. Previously it was a yes/no question about if a base class could be changed at runtime. I may be working on mission impossible here, but I seem to be getting close. I want to extend a ASP.NET control, and I want my code to be unit testable. Also, I'd like to be able to fake behaviors of a real Label (namely things like ID generation, etc), which a real Label can't do in an nUnit host. Here a working example that makes assertions on something that depends on a real base class and something that doesn't-- in a more realistic unit test, the test would depend on both --i.e. an ID existing and some custom behavior. Anyhow the code says it better than I can: public class LabelWrapper : Label //Runtime //public class LabelWrapper : FakeLabel //Unit Test time { private readonly LabelLogic logic= new LabelLogic(); public override string Text { get { return logic.ProcessGetText(base.Text); } set { base.Text=logic.ProcessSetText(value); } } } //Ugh, now I have to test FakeLabelWrapper public class FakeLabelWrapper : FakeLabel //Unit Test time { private readonly LabelLogic logic= new LabelLogic(); public override string Text { get { return logic.ProcessGetText(base.Text); } set { base.Text=logic.ProcessSetText(value); } } } [TestFixture] public class UnitTest { [Test] public void Test() { //Wish this was LabelWrapper label = new LabelWrapper(new FakeBase()) LabelWrapper label = new LabelWrapper(); //FakeLabelWrapper label = new FakeLabelWrapper(); label.Text = "ToUpper"; Assert.AreEqual("TOUPPER",label.Text); StringWriter stringWriter = new StringWriter(); HtmlTextWriter writer = new HtmlTextWriter(stringWriter); label.RenderControl(writer); Assert.AreEqual(1,label.ID); Assert.AreEqual("<span>TOUPPER</span>", stringWriter.ToString()); } } public class FakeLabel { virtual public string Text { get; set; } public void RenderControl(TextWriter writer) { writer.Write("<span>" + Text + "</span>"); } } //System Under Test internal class LabelLogic { internal string ProcessGetText(string value) { return value.ToUpper(); } internal string ProcessSetText(string value) { return value.ToUpper(); } }

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  • ApplicationContext ctx = new FileSystemXmlApplicationContext error

    - by GigaPr
    Hi I am completely new to Java, so sorry if my question may sound a bit stupid. I am following a tutorial on hibernate and i am trying to get the context definition files from the file system. ApplicationContext ctx = new FileSystemXmlApplicationContext( new String[] { "conf/rssWebApplication-services.xml", "conf/rssWebApplication-data-hibernate.xml" }); But i get the following error: found : org.springframework.context.support.FileSystemXmlApplicationContext required: org.jboss.weld.context.ApplicationContext ApplicationContext ctx = new FileSystemXmlApplicationContext( new String[] { "conf/rssWebApplication-services.xml", Any idea what is the problem? Thanks

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  • C# if no error contiune.. if error occurse do else

    - by NightsEVil
    hi i have a question i have some code that works good on like 70% of the computers i use it on but.. for some reason theres a few that are pesky and id like to do something like this (keep in mind this is a hypothetical) private void test_click(object sender, EventArgs e) { MessageBox.Show("hi"); //if it works ok without a error it continues to MessageBox.Show("worked ok"); //if it encountered a error of some kind it would go to MessageBox.Show("DID NOT WORK OK"); }

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  • Python: if key in dict vs. try/except

    - by LeeMobile
    I have a question about idioms and readability, and there seems to be a clash of Python philosophies for this particular case: I want to build dictionary A from dictionary B. If a specific key does not exist in B, then do nothing and continue on. Which way is better? try: A["blah"] = B["blah"] except KeyError: pass or if "blah" in B: A["blah"] = B["blah"] "Do and ask for forgiveness" vs. "simplicity and explicitness". Which is better and why?

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  • What problem does NHibernate solve?

    - by SLC
    I've seen some jobs that require nhibernate knowledge, as well as numerous questions on stack. I found another question that pointed me to Summer Of NHibernate and I am watching the videos now. However it has no introduction explaining why NHibernate was created and what problem is solves. By looking on wikipedia, I can see vaguely what it does, but to me it looks like .NET already has the entity framework which seems to do the same thing. Can anyone clarify why nhibernate exists?

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  • How to determine element touched on touchend for a page with layers

    - by Greg
    I cannot supply a follow up question as of yet to Get the element under a touchend , so I am opening a new issue. I want to get the element under a touchend that is different from the touchstart, but my page has absolutely positioned elements, and the function document.elementFromPoint keeps on returning my background element instead of every element in front of it. How do I get the actual element being touched?

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  • how do i consume net.tcp binding within web project?

    - by user1871124
    I'm working on a web application using mvc, we have already a service that does http binding, the client wants tcp binding for certain actions (not really sure why) but it's their requirement so i'm attempting to set up net.tcp binding, all references i am seeing to doing this involve a windows application and not a web application. I guess my question has 2 parts, first can you run httpbinding and net.tcp binding at the same time through the same service/project. secondly how would I consume the service through a webproject?

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  • User management, authentication and acl plugin for CakePHP?

    - by Jack
    Hi, I am pretty new to CakePHP, having been using rails for a little while. My question is, can anyone recommend a good user management, authentication and acl plugin or component for Cake? I have come across this one, but it has not been updated since 2008. If not can anyone recommend a good book/tutorial site for this kind of set up? I am more than happy to sit down and write this kind of thing myself, but would rather use a tested community plug-in. Cheers

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  • CSS: content:"\00a0"

    - by SteD
    Today I came across a new CSS syntax that I have never seen before content:"\00a0"; Checking it on w3schools, it explains: Definition and Usage The content property is used with the :before and :after pseudo-elements, to insert generated content. My question is, can you point out to me in real world example, how do we use this 'content' syntax? And what does the \00a0 mean in this case?

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  • How to make hudson build only most current build.

    - by MikeU
    Question How do I setup Hudson so that if one person triggers a build, Hudson will put it on the queue and wait lets say 2 minutes, and during those 2 minutes if another build is triggered it will replace the older build on the queue with the new build? This way if there are 2 builds in those 2 minutes, Hudson will only perform the last build.

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  • I've heard that LaTeX is Turing complete. Are there any programs written in LaTeX?

    - by ire_and_curses
    It's possible to do interesting things with what would ordinarily be thought of as typesetting languages. For example, you can construct the Mandelbrot set using postscript. It is suggested in this MathOverflow question that LaTeX may be Turing-complete. This implies the ability to write arbitrary programs (although it may not be easy!). Does anyone know of any concrete example of such a program in LaTeX, which does something highly unusual with the language?

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  • initialize a const array in a class initializer in C++

    - by Nathan Fellman
    I have the following class in C++: class a { const int b[2]; // other stuff follows // and here's the constructor a(void); } The question is, how do I initialize b in the initialization list, given that I can't initialize it inside the body of the function of the constructor, because b is const? This doesn't work: a::a(void) : b([2,3]) { // other initialization stuff } Edit: The case in point is when I can have different values for b for different instances, but the values are known to be constant for the lifetime of the instance.

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  • Rails SQL injection?

    - by yuval
    In Rails, when I want to find by a user given value and avoid SQL injection (escape apostrophes and the like) I can do something like this: Post.all(:conditions => ['title = ?', params[:title]]) I know that an unsafe way of doing this (possible SQL injection) is this: Post.all(:conditions => "title = #{params[:title]}") My question is, does the following method prevent SQL injection or not? Post.all(:conditions => {:title => params[:title]})

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  • How do i create these borders in the middle?

    - by Nitesh Panchal
    Hello, I know how to generate rounded corners using images. But please have a look at the link :- http://roundedbox.andreas-kalt.de/ The rounded corners on all four corners are all images, but my question is how are those borders in the middle done? Those green color borders that surround the whole div. The tutorial is given but it is German :(. Also i don't want to use Css3 like -webkit-border-radius etc as they are not yet supported in IE Thanks in advance :)

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  • Using Maven with Sourceforge.net

    - by mjn
    For a new project which uses Maven I would like to add distributionManagement configuration in the pom.xml which will connect the project with the Sourceforge.net file upload system. I have found this information (of 2007), is it still valid or do you know updated resources? http://docs.codehaus.org/display/MAVENUSER/MavenAndSourceforge Related question: How can I deploy artifacts from a Maven build to the SourceForge File Release System?

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  • How efficient is a details table?

    - by Jeffrey Lott
    At my job, we have pseudo-standard of creating one table to hold the "standard" information for an entity, and a second table, named like 'TableNameDetails', which holds optional data elements. On average, for every row in the main table will have about 8-10 detail rows in it. My question is: What kind of performance impacts does this have over adding these details as additional nullable columns on the main table?

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  • Place Eclipse Project File in Separate Directory

    - by Eddie Ringle
    I'm using a default Eclipse project file generated for my Android application, and I want to keep it in a targets/ directory (along with other eclipse-specific files) in order to better organize my project structure (I also plan on adding a target for NetBeans). Simple question, I suppose: Is this possible?

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