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• Manually Building a Tree in CakePHP

  - by mabwi

  I'm currently working on building an application in CakePHP. There's a quite extensive existing data set that's conceptually a tree, but wasn't previously stored as one. What I mean by that, is there's no real relationship defined in the data. The problem I'm having is getting it to work correctly with the CakePHP tree behaviour. Because I have to set all the values on existing data - as opposed to Cake setting up the structure as elements are inserted - I need to understand how the lft/rght values work. So, I guess the question is: How does the structure data work, specifically the lft/rght values? How do I set it up so that the data comes out rationally, without inserting them one at a time? It's a 2 level tree, with Sections and sub-sections. Thanks for the help

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• Do "if" statements affect in the time complexity analysis?

  - by FranXh

  According to my analysis, the running time of this algorithm should be N2, because each of the loops goes once through all the elements. I am not sure whether the presence of the if statement changes the time complexity? for(int i=0; i<N; i++){ for(int j=1; j<N; j++){ System.out.println("Yayyyy"); if(i<=j){ System.out.println("Yayyy not"); } } }

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• How to access java collection, just like the table in the database, having indexes and LINQ-like que

  - by Shaman

  This task occurs from time to time in my projects. I need to handle a collection of some complex elements, having different attributes, such as login, password_hash, role, etc. And, I need to be able to query that collection, just like I query a table in the database, having only partial data. For example: get all users, with role "user". Or check, if there's a user with login "root" and role "superuser". Removing items, based on same data is also needed. The first attempt I've tried is to use Google collections, Apache collections, and lambdaj. All of them have very similar preicate mechanism, but with a great disadvantage: it is based on iteration, one by one, over the collection of items, which is not good, for often used collections, containing big amounts of data. Could you please suggest me some solution? Thanks.

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• What's the equivalent in C# of this VB code on an Outlook form?

  - by wes

  Basically, how do I link an Outlook form and a C# back end? In VB you can write on the form Sub ButtonName_Click() Dim Recipients With Item.GetInspector.ModifiedFormPages("Message") Set Recipients = .Controls("To") End With End Sub which will fire whenever the button named "ButtonName" on the form is clicked and will set the variable Recipients to a string of whatever is in the To text box. Now I have a custom form, and I have a VS C# Outlook Add-in, and they're two separate things. I've got an event handler that can catch MailItem objects, but I don't know how to handle custom form button clicks or even how to access elements on the form. EDIT - Just to clarify, the custom form was created in Outlook and then its .ofs was imported into VS. Both Outlook and VS are 2010.

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• Remove inner divs from a parent div using jquery...

  - by Pandiya Chendur

  Consider my parent div is parentDiv and it contains five child divs <div id="parentDiv"> <div>1</div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> </div> How to empty the child elements parentDiv using jquery.... EDIT: What is the diff between empty() and remove()? what should i use?

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• Alternative to jQuery .data()?

  - by thebossman

  I'm a big fan of jQuery's .data() method, but I can't always use it. Often times I am rendering html templates that I pass via AJAX and I need to attach metadata to each of the elements in the template. For example: <ul> {% for item in itemlist %} <li metadata="{{ item.metadata }}">{{ item.name }}</li> {% endfor %} </ul> I know attaching attributes to store data is bad practice (and it might not even work in older versions of IE). What is the best practice? Is there a good alternative to this method?

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• Overloaded function print

  - by Olga Shirokova

  For one of the assignments I need to create an overloaded function print that prints an element or all elements of an array. I have no problem with printing the entire array: for( int i = 0; i < size; i++) cout << list [ i ] <<endl; But how do I make the same function to print only one particular element? The way I see it is to ask a user what to print, either one element or all numbers. Or am I missing something here?

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• Altering IFrame src content

  - by Nick

  I dont believe this can be done, but is it possible to alter the content of an iframe that is rendered via a src. The 3rd party compiled ASP.Net control (Telerik RadEditor .Net 2 version) I use has an iframe in part of its rendered code and does not contain a doctype and it is causing problems in IE8 with certain elements. As it is compiled, I can not add it in the source. I was wondering if it is possible to add it in another way? I have tried multiple things in jquery such as: $(element).html().prepend("doc type here"); $(element).html("doctype here" + $(element).html()); and all other kinds of dodgy work.

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• (Symfony) How can i change the templating of a form in sfDoctrineGuardPlugin ?

  - by ruic

  How can i change the templating of a form in sfDoctrineGuardPlugin? That is, I need to change the html (class, id) of the input elements (username, password) of a login form provided by sfDoctrineGuardPlugin. I've changed apps/app_name/modules/sfGuardAuth/templates/singinSuccess.php, but it then just echoes $form (I need to change contents of that part - $form): <form action="<?php echo url_for('@sf_guard_signin') ?>" method="post"> <table> <?php echo $form ?> </table> <input type="submit" class="go_button" value="ir" /> <a href="<?php echo url_for('@sf_guard_password') ?>"><?php echo __('Forgot your password?') ?></a> </form> (It really should be something like changing a _form.php = I cant find this, though :S) Thank you all for any answers provided =)

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• Best way to parse XMPP-like XML streams?

  - by codethief

  I am working on a server application which receives data over a TCP socket in an XMPP-like XML format, i.e. every child of the <root> element essentially represents one separate request (stanza). The connection is closed as soon as </root> is received. I do know that I must use a stream parser like SAX, somehow. Though, for convenience, I'd prefer to have a tree-like interface to access each stanza's child elements. (The data sent with every request is not large so I think it makes sense to read each stanza as a whole.) What's the best way to realize that in Python (preferably v3)? This is the code I'd like to build it in. Feel free to point me in a totally different direction to solve this issue. import socketserver import settings class MyServer(socketserver.ThreadingMixIn, socketserver.TCPServer): pass class MyRequestHandler(socketserver.StreamRequestHandler): def handle(self): pass if __name__ == '__main__': server = MyServer((settings.host, settings.port), MyRequestHandler) server.serve_forever()

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• Removing title from wp_list_cats()

  - by Alex

  I'm trying to remove/replace the title attribute on the category elements used by WordPress. I'm using WordPress 2.9.1, with the following code: <div id="categories"> <h3>Manufacturers</h3> <ul> <?php str_replace("title=\"View all posts filed under ","",wp_list_categories('use_desc_for_title=0&exclude=1,2,3,4,5&title_li=&hierarchical=1')); ?> </ul> </div> From what I had read this method used to work on older versions (I had never tried it though). I really don't want to hack at the interals of WordPress, or have to use a JavaScript hack, for something so straight forward. Any help is appreciated... Update below is what is created from the code above... Manufacturers Featured

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• Wordpress > Exclude specific categories from categories listing

  - by Scott B

  I have created some functional categories that I use to show/hide markup elements. However, when I go to list the legit categories, these show up too, which I would expect. I want to list the legitimate categories and omit others. I need to know how you would do it under two circumstances.... 1) Each category that I want to exclude is preceded by an underscore character in its name. 2) Each category that I want to exclude is NOT preceeded by a special character and I will just provide an ID to the script that handles the exclusion listing.

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• Check one element on last row of a table is not empty using Jquery.

  - by Cesar Lopez

  I have the following function: var emptyFields = false; function checkNotEmpty(tblName, columns, className){ emptyFields = false; $("."+className+"").each(function() { if($.trim($(this).val()) === "" &amp;&amp; $(this).is(":visible")){ emptyFields = true; return false; // break out of the each-loop } }); if (emptyFields) { alert("Please fill in current row before adding a new one."); } else { AddRow_OnButtonClick(tblName,columns); } } Its checking that all elements in the table are not empty before adding a new row, and I only need to check that the last row of the table has at least an element which its not empty and not the whole table. Any help would be apreciated. Thanks

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• C++ arrays select square number and make new vector

  - by John Smith

  I have to see which of the following from a vector is a square number then make another vector with only the square numbers For example: (4,15,6,25,7,81) the second will be (4,25,81) 4,25,81 because 2x2=4 5x5=25 and 9x9=81 I started like this: { int A[100],n,r,i; cout<<"Number of elements="; cin>>n; for(i=1;i<=n;i++) { cout<<"A["<<i<<"]="; cin>>A[i]; } for(i=1;i<=n;i++) { r=sqrt(A[i]); if(r*r==A[i]) } return 0; } but I am not really sure how to continue

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• .click() callback references local variable from the calling method instead of copying by value

  - by Eric Freese

  The following jQuery Javascript code is included on an otherwise empty page. $(function() { for (var i = 0; i < 10; i++) { element = $('<div>' + i + '</div>'); element.click(function() { alert(i); }); $('body').append(element); } }); The desired behavior is that this code should generate 10 div elements numbered from 0 to 9. When you click on a div element, an alert popup will show the number of the div element you clicked on (i.e. if a user clicks on the div element labeled '4', the alert popup should show the number 4). The alert popup instead shows the number 10 regardless of which div element is clicked on. How can I modify this code to make it behave in the desired way?

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• Quick-sort doesn't work with middle pivot element

  - by Bobby

  I am trying to sort an array of elements using quick-sort algorithm.But I am not sure where am I going wrong.I choose the middle element as pivot every time and then I am checking the conditions.Here is my code below. void quicksort(int *temp,int p,int r) { if(r>p+1) { int mid=(p+r)/2; int piv=temp[mid]; int left=p+1; int right=r; while(left < right) { if(temp[left]<=piv) left++; else swap(&temp[left],&temp[--right]); } swap(&temp[--left],&temp[p]); quicksort(temp,p,left); quicksort(temp,right,r); } }

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• how to force onLayout

  - by rekisum

  Hi i want to design a custom View where I need to recalculate my layout and redraw when user changes something. To force a onLayout(), the only solution that works for me until now is: onLayout(true, 0, 0, 0, 0); invalidate(); Of course that gives me a lint error and I have to add a @SuppressLint("WrongCall"). So there must be a smarter solution. Calls of forceLayout or requestLayout didn't work. Probably they only put a request on a stack but don't react immediately. As my view has no child elements and I do the drawing inside all by myself, could be I'm bypassing some Android design guides and abusing some principles. Can live with the lint error but maybe someone already found a solution. Thanks!

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• Enumerating combinations in a distributed manner

  - by Reyzooti

  I have a problem where I must analyse 500C5 combinations (255244687600) of something. Distributing it over a 10 node cluster where each cluster processes roughly 10^6 combinations per second means the job will be complete in about 7hours. The problem I have is distributing the 255244687600 combinations over the 10 nodes. I'd like to present each node with 25524468760, however the algorithms I'm using can only produce the combinations sequentially, I'd like to be able to pass the set of elements and a range of combination indicies eg: [0-10^7) or [10^7,2.0 10^7) etc and have the nodes themselves figure out the combinations. The algorithms I'm using at the moment are from the following: http://home.roadrunner.com/~hinnant/combinations.html A logical question I've considered using a master node, that enumerates each of the combinations and sends work to each of the nodes, however the overhead incurred in iterating the combinations from a single node and communicating back and forth work is enormous, and will subsequently lead to the master node becoming the bottleneck. Are there any good combination iterating algorithms geared up for efficient/optimal distributed enumeration?

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• JQuery - How to convert html with br's in it to html with p's in it?

  - by Spines

  On the my page I have html like this: hi<br>bye<br>sigh<br>hello <em>tie</em><br>lie with jquery, how can I convert it to html like this (basically using p's instead of br's): <p>hi</p><p>bye</p><p>sigh</p><p>hello <em>tie</em></p><p>lie</p> My first attempt at doing this was this code: $(container).contents().filter(function() { var val = this.nodeValue; return this.nodeType == TEXT_NODE && $.trim(val).length > 0; }) .wrap('<p></p>') .end() .filter('br') .remove(); This worked for the most part, except that it would put hello and <em>tie</em> in separate p elements. Does anyone know how I can do this properly?

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• [webbrowser component]

  - by Eduardo Ghidini

  I'm using webbrowser component to show an page of articles. My webbrowser will, if the user read an article, to mark it like read. So, i'm need to each articles of the page (these articles are dynamic) and verify, in a local xml how articles are read.To article read i'm set a determinated css class,and if not, another css class. To do it, i'm checking all elements of type "DIV" in page using this code line: HtmlElementCollection col = webBrowser.Document.GetElementsByTagName("div"); I'm wanna filter the div's to get only 'divs' that i will change and not all div's of page Somebody can help me? Thanks

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• How to update two f.select from 2 different tables on ruby on rails

  - by Zerosoul13

  Hello, I just started working on a Ruby On Rails project and i got to the point where i need to see the contacts of a company. They should appear once the company is selected.. <%= observe_field :empresa_id, :url={:action = "get_contactos", :controller= :contactos, :updatewith =:empresa_id} % but nothing happens, i don't see even a error on the script/server. Can someone point me in the right direction? http://nealenssle.com/blog/2007/04/12/how-to-dynamically-update-form-elements-in-rails-using-ajax/ I see on the link that a guy did the exact same thing i need but did not post any info. Cheers.

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• Stop an input field in a form from being submitted

  - by Acorn

  I'm writing some javascript that will insert some input fields into a form on a website. The thing is, I don't want those input fields to affect the form in any way, I don't want them to be submitted when the form is submitted, I only want my javascript to have access to their values. Is there some way I could add some input fields into the middle of a form and not have them submitted when the form is submitted? Obviously the ideal thing would be for the input fields to not be in the form element, but I want the layout of my resulting page to have my inserted input fields appear between elements of the original form.

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• Extended maxima transform in Matlab

  - by garvin

  I use imtophat to apply a filter to an m x n array. I then find the local max using imextendedmax(). I get mostly 0's everywhere except for 1's in the general areas where I am expecting a local max. The weird thing is, though, that I don't get just one local max. Instead in these places I get MANY elements with 1's such as 00011100000 00111111000 00000110000 yet the values there are close but NOT equal so I would expect that there would be one that is higher than all of the rest. So I'm wondering a) if this is a bug and how I might fix it and b) how you would choose choose the element of these 1's with the highest value.

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• jquery(selector) how to select the last element from two different classes

  - by Yasir Laghari

  for the following html <div> <div class="col1" > I dont want to select this </div> <div class="col2"> I dont want to select this </div> <div class="col1"> I dont want to select this </div> <div class="col1"> I dont want to select this </div> <div class="col2"> I WANT to select this </div> </div> How do I select the last element with two different class names? Tried using $("col1:last,col2:last) but it gives back 2 elements tried $("col1,col2:last") and this gives all col1 and last of col2

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• Parse xml file with same tag multiple times iphone sdk

  - by neha

  Hi all, In my application, I have a tag multiple times. I'm using xml parser. I'm taking a corresponding element with similar name as the one in xml file in my class. So in case of: <photo>abc</photo> <photo>def</photo> What I get in photo element of my class is the second element i.e def, as the first one gets overwritten as there's only one photo element in my class. My question is am I wrong in taking similar elements in class as in case of xml? Is there any better method or a better parser? Or I'm on right path and have to do this manually by setting some flags etc? Thanx in advance.

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