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  • Tools to create class methods interaction diagram

    - by nightcoder
    Let's say I have a MyClass class, with various methods, and let's say that method MyClass.A() calls methods MyClass.B() which calls MyClass.C(). Method MyClass.A() also calls MyClass.D() which also calls MyClass.C() and so on :) Is there any tool to visualize this as a diagram? UPD. I see NDepend can do what I need but it costs too much when I just need to build methods dependency graph and trial limitations are too big (I can't zoom the graph and I can't see anything on a small resulted graph without being able to zoom). So, I'm still looking for alternatives - it should be free or not expensive tool.

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  • How to Create a Temporary Function in Emacs Lisp

    - by Cristian
    I'm making some tedious calls to a bunch of functions, but the parameters will be determined at runtime. I wrote a simple function to keep my code DRY but giving it a name is unnecessary. I don't use this function anywhere else. I'm trying to do it the way I would in Scheme, but I get a void-function error: (let ((do-work (lambda (x y z) (do-x x) (do-y y) ;; etc ))) (cond (test-1 (do-work 'a 'b 'c)) (test-2 (do-work 'i 'j 'k)))) I could stick it all into an apply (e.g., (apply (lambda ...) (cond ...))) but that isn't very readable. Is there a better way?

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  • How to create Fibonacci Sequence in Java

    - by rfkrocktk
    I really suck at math. I mean, I REALLY suck at math. I'm trying to make a simple fibonacci sequence class for an algorithm I'll be using. I have seen the python example which looks something like this: a = 0 b = 1 while b < 10: print b a, b = b, b+a The problem is that I can't really make this work in any other language. I'd like to make it work in Java, since I can pretty much translate it into the other languages I use from there. This is the general thought: public class FibonacciAlgorithm { private Integer a = 0; private Integer b = 1; public FibonacciAlgorithm() { } public Integer increment() { a = b; b = a + b; return value; } public Integer getValue() { return b; } } All that I end up with is doubling, which I could do with multiplication :( Can anyone help me out? Math pwns me.

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  • Django model: Reference foreign key table in __unicode__ function for admin

    - by pa
    Example models: class Parent(models.Model): name = models.CharField() def __unicode__(self): return self.name class Child(models.Model): parent = models.ForeignKey(Parent) def __unicode__(self): return self.parent.name # Would reference name above I'm wanting the Child.unicode to refer to Parent.name, mostly for the admin section so I don't end up with "Child object" or similar, I'd prefer to display it more like "Child of ". Is this possible? Most of what I've tried hasn't worked unfortunately.

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  • Adding Table Columns to a Group by clause - Ruby on Rails - Postgresql

    - by bgadoci
    I am trying to use Heroku and apparently Postgresql is a lot more strict than SQL for aggregate functions. When I am pushing to Heroku I am getting an error stating the below. On another question I asked I received some guidance that said I should just add the columns to my group by clause and I am not sure how to do that. See the full error below and the PostsControll#index. SELECT posts.*, count(*) as vote_total FROM "posts" INNER JOIN "votes" ON votes.post_id = posts.id GROUP BY votes.post_id ORDER BY created_at DESC LIMIT 5 OFFSET 0): PostsController def index @tag_counts = Tag.count(:group => :tag_name, :order => 'count_all DESC', :limit => 20) conditions, joins = {}, :votes @ugtag_counts = Ugtag.count(:group => :ugctag_name, :order => 'count_all DESC', :limit => 20) conditions, joins = {}, :votes @vote_counts = Vote.count(:group => :post_title, :order => 'count_all DESC', :limit => 20) conditions, joins = {}, :votes unless(params[:tag_name] || "").empty? conditions = ["tags.tag_name = ? ", params[:tag_name]] joins = [:tags, :votes] end @posts=Post.paginate( :select => "posts.*, count(*) as vote_total", :joins => joins, :conditions=> conditions, :group => "votes.post_id", :order => "created_at DESC", :page => params[:page], :per_page => 5) @popular_posts=Post.paginate( :select => "posts.*, count(*) as vote_total", :joins => joins, :conditions=> conditions, :group => "votes.post_id", :order => "vote_total DESC", :page => params[:page], :per_page => 3) respond_to do |format| format.html # index.html.erb format.xml { render :xml => @posts } format.json { render :json => @posts } format.atom end end

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  • how to create wizard forms in ruby on rails

    - by Branden Silva
    I'm trying to understand the best options for pulling off a wizard form in ruby on rails. Ideally I'd like to have it so the application signup has a back and next button that allows the user to submit data in steps. So in step 1 they could fill out contact info. Once they are done they could click next and be on step 2 to fill out payment info, etc. If they make a mistake, they can click back and correct it. Some steps will be required, while others will not, but you do have to make it to the last step to submit the data to the database to sign up. They then need the ability to go back and fill out the past steps in the same fashion after completion. (example: perhaps if they clicked on a profile link they could recomplete the steps in the same fashion because they didn't want to complete all the steps right away. Maybe by being given a skip button before they completed the steps to sign up?). I also need validation to happen on what steps have been completed preventing them from moving onto the next step until corrected or completed. Option 1) I've noticed that ajax has been recommended as an option in other questions on stackoverflow. The only problem I have with it is that the user would not be able to sign up if javascript was disabled. Ideally I'd like to have it be native to ruby on rails but I'm willing to work with whatever is necessary to get it to work.

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  • How to create migration in subdirectory with Rails?

    - by Adrian Serafin
    Hi! I'm writing SaaS model application. My application database consist of two logic parts: application tables - such as user, roles... user defined tables (he can generate them from ui level) that can be different for each application instance All tables are created by rails migrations mechanism. I would like to put user defined tables in another directory: db/migrations - application tables db/migrations/custom - tables generated by user so i can do svn:ignore on db/migrations/custom, and when I do updates of my app on clients servers it would only update application tables migrations. Is there any way to achieve this in rails?

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  • How to create nested macro in BOO

    - by Neo
    Hi, I am creating nested macros in BOO, I wrote this program: macro text: macro subMacro: text["Text"] = "Hello World" return [| block: System.Console.WriteLine( "Hello World" ); |] But I am getting the error "Unknown Identifer: 'text'" in the 3rd line of the code.

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  • Create matplotlib legend out of the figure

    - by Werner
    I added the legend this way: leg = fig.legend((l0,l1,l2,l3,l4,l5,l6), ('0 Cl : r2, slope, origin', '1 Cl :'+str(r1b)+' , '+str(m1)+' , '+str(b1), '2 Cl :'+str(r2b)+' , '+str(m2)+' , '+str(b2), '3 Cl :'+str(r3b)+' , '+str(m3)+' , '+str(b3), '4 Cl :'+str(r4b)+' , '+str(m4)+' , '+str(b4), '5 Cl :'+str(r5b)+' , '+str(m5)+' , '+str(b5), '6 Cl :'+str(r6b)+' , '+str(m6)+' , '+str(b6), ), 'upper right') but the legend appears inside the plot. How can I tell matplotlib to put it to the right of the plot and at the right?

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  • Using Unity and interfaces, how do I create a concrete class that implements IDisposable

    - by Ryan ONeill
    I have an interface (IDbAccess) for a database access class so that I can unit test it using Unity. It all works fine in Unity and now I want to make the concrete database class implement IDisposable so that it closes the db connections. My problem is that Unity does not understand that my concrete class is disposable because the interface (IDbAccess) cannot implement another interface. So how can I write code like this (pseudo code) so that Unity is aware that it needs to dispose the class as soon as I am done? Using var MyDbAccessInstance = Unity.Resolve<IDbAccess> { } Thanks Ryan

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  • Editable table view cell

    - by Koning Baard XIV
    I am creating an application. I have to implement a bookmark feature, and adding one should be similar to this: I want editable UITableViewCells for text input. I was wondering if there is an easier way then embedding a UITextField into a UITableViewCell. And if not, can someone explain how I can use the UITextField inside it? Thanks

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  • How do I create Document Fragments with Nokogiri?

    - by viatropos
    I have an html document like this: <div class="something"> <textarea name="another"/> <div class="nested"> <label>Nested Label</label> <input name="nested_input"/> </div> </div> I have gone through and modified some of the html tree by building it into a Nokogiri::HTML::Document like so: html = Nokogiri::HTML(IO.read("test.html")) html.children.each do ... Now I want to be able to extract the nested part into a document so I can apply a stylesheet to it, or so I can manipulate it as if it were like a Rails partial. Something like this: fragment = Nokogiri::HTML(html.xpath("//div[@class='nested']).first) Is there a way to do that? Such a way that when I output it, it doesn't wrap it in<html> tags and turn it into an HTML document, I just want HTML, no document. Is this possible?

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  • Using triggers to update linked server table

    - by tabouakl
    Can I use triggers to insert or update tables in a linked server? I tried it and got the following error: Unable to start a nested transaction for OLE DB provider 'SQLOLEDB'. A nested transaction was required because the XACT_ABORT option was set to OFF. [OLE/DB provider returned message: Cannot start more transactions on this session.] OLE DB error trace [OLE/DB Provider 'SQLOLEDB' ITransactionLocal::StartTransaction returned 0x8004d013: ISOLEVEL=4096].

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  • Quick way to create JSF custom component

    - by michael lucas
    I know of two ways of creating custom JSF components: 1. Native JSF way: creating JSF component class, tag, etc. 2. Facelets way: defining component in a xhtml file and then creating appropriate decrption in facelets taglib. Currently I work on a project in which introducing facelets is unfortunately out of the question. On the other hand, creating custom components the standard JSF way seems like a pain in the ass. Is there maybe a third party library that allows creating custom components in the way similar to facelets but doesn't entail the need of using non-standard renderer?

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  • Create a polynomial object from a number using change-class

    - by charlieb
    I have written a polynomial class along the lines described in SICP 2.5.3 (except using defclass). I would like to be able to seamlessly add and multiply polynomials and regular numbers but I can't make change-class accept a number. I tried to simplify the problem by changing class from an integer to a float: (change-class 4 'float) but that gave me the error: There is no applicable method for the generic function #<STANDARD-GENERIC-FUNCTION CHANGE-CLASS (7)> when called with arguments (4 #<BUILT-IN-CLASS FLOAT>). [Condition of type SIMPLE-ERROR] I get an error of the same form from (fyi): (change-class 4 'polynomial) I'm going to go ahead and implement a manual conversion but I would prefer to use the built-in clos facilities.

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  • jquery loop to create elements with retained values

    - by Andy Simpson
    Dear all, I recently asked a question about creating elements with jquery. Specifically I needed input boxes created/deleted depending on the value of a particular select box. This was answered quickly with a very nice solution as follows: $('select').change(function() { var num = parseInt($(this).val(), 10); var container = $('<div />'); for(var i = 1; i <= num; i++) { container.append('<input id="id'+i+'" name="name'+i+'" />'); } $('somewhere').html(container); }); This works very well. Is there a way to have the values remaining in the text boxes when the selection is changed? For example, lets say the select element value is set to '2' so that there are 2 input boxes showing. If there is input already entered in these boxes and the user changes the select element value to '3' is there a way to get the first 2 input boxes to retain their value? Thanks for the help in advance Andy

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  • create graph using adjacency list

    - by sum1needhelp
    #include<iostream> using namespace std; class TCSGraph{ public: void addVertex(int vertex); void display(); TCSGraph(){ head = NULL; } ~TCSGraph(); private: struct ListNode { string name; struct ListNode *next; }; ListNode *head; } void TCSGraph::addVertex(int vertex){ ListNode *newNode; ListNode *nodePtr; string vName; for(int i = 0; i < vertex ; i++ ){ cout << "what is the name of the vertex"<< endl; cin >> vName; newNode = new ListNode; newNode->name = vName; if (!head) head = newNode; else nodePtr = head; while(nodePtr->next) nodePtr = nodePtr->next; nodePtr->next = newNode; } } void TCSGraph::display(){ ListNode *nodePtr; nodePtr = head; while(nodePtr){ cout << nodePtr->name<< endl; nodePtr = nodePtr->next; } } int main(){ int vertex; cout << " how many vertex u wan to add" << endl; cin >> vertex; TCSGraph g; g.addVertex(vertex); g.display(); return 0; }

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  • How to create a variadic (with variable length argument list) function wrapper in JavaScript

    - by U-D13
    The intention is to build a wrapper to provide a consistent method of calling native functions with variable arity on various script hosts - so that the script could be executed in a browser as well as in the Windows Script Host or other script engines. I am aware of 3 methods of which each one has its own drawbacks. eval() method: function wrapper () { var str = ''; for (var i=0; i<arguments.lenght; i++) str += (str ?', ':'') + ',arguments['+i+']'; return eval('[native_function] ('+str+')'); } switch() method: function wrapper () { switch (arguments.lenght) { case 0: return [native_function] (arguments[0]); break; case 1: return [native_function] (arguments[0], arguments[1]); break; ... case n: return [native_function] (arguments[0], arguments[1], ... arguments[n]); } } apply() method: function wrapper () { return [native_function].apply([native_function_namespace], arguments); } What's wrong with them you ask? Well, shall we delve into all the reasons why eval() is evil? And also all the string concatenation... Not a solution to be labeled "elegant". One can never know the maximum n and thus how many cases to prepare. This also would strech the script to immense proportions and sin against the holy DRY principle. The script could get executed on older (pre- JavaScript 1.3 / ECMA-262-3) engines that don't support the apply() method. Now the question part: is there any another solution out there?

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