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• Check duplicate objects in NSMutableArray?

  - by fuzzygoat

  I am adding objects (NSNumbers in this case) to an NSMutableArray and I wanted to check what the best way is to check for duplicates in the array before adding. (i.e.) Number to add if (NSMutableArray does not contain Number) { add Number } gary

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• Rails Multiple Checkboxes with Javascript Dynamic Select

  - by Jack

  Hi, I have followed the Railscast episode 88 to implement a set of dependant drop down menus. In the students-new view, when the student's year is selected, the javascript figures out which courses are available to that year and offers the selection in a new drop down menu. My javascript erb file is here: var courses = new Array(); <% for course in @courses -%> <%for year in course.years -%> courses.push(new Array(<%= year.year_id%>, '<%=h course.title%>', <%= course.id%>)); <%end -%> <% end -%> function yearSelected() { year_id = $('student_year_id').getValue(); options = $('student_course_ids').options; options.length = 1; courses.each(function(course) { if (course[0] == year_id) { options[options.length] = new Option(course[1], course[2]); } }); if (options.length == 1) { $('course_field').hide(); } else { $('course_field').show(); } } document.observe('dom:loaded', function() { yearSelected(); $('student_year_id').observe('change', yearSelected); }); Any my view is as follows: <% form_for(@student) do |f| %> <%= f.error_messages %> <p> <%= f.label :name %><br /> <%= f.text_field :name %> </p> <p> <%= f.label :cid, "CID" %><br /> <%= f.text_field :cid %> </p> <p> <label for="student_year_id">Year:</label> <%= collection_select(:student, :year_id, Year.all, :id, :title, {:prompt => true})%> </p> <p id="course_field"> <label for="student_course_ids">Course:</label> <%= collection_select(:student, :course_ids, Course.find(:all), :id, :title, {:prompt => true}, {:multiple => true})%> </p> <p> <%= f.submit 'Save' %> </p> <% end %> What I would like to do is to add checkboxes instead of the drop down menu. Any suggestions? I previously was using this method, but was not able to get it to work with the new javascript. Cheers

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• Checkers board structure

  - by Ockonal

  Hello guys, I'm implement checkers (game) board with python. Here is how I switch it to the need structure [8][8] array: _matrix = [] for i in xrange(8): _matrix.append( [' '] * 8 ) for row in xrange(0, 8): for col in xrange(0, 8): if _darkQuad(row, col) == True: _matrix[row][col] = '#' else: _matrix[row][col] = '-' def _darkQuad(row, col): return ((row%2) == (col%2)) def _printDebugBoard(): for row in xrange(0, 8): for col in xrange(0, 8): print _matrix[row][col] print '' This should do my board like: # - # - # - # - - # - # - # - # ... But the result is: - - - - - - - - # # # # # # # # - - - - - - - - # # # # # # # # - - - - - - - - # # # # # # # # - - - - - - - - # # # # # # # # What's wrong?

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• What is C# equivalent of PHP's mysql_fetch_array function?

  - by Mike Biff

  I am learning C#/ASP.NET and I am wondering what the C# equivalent of the following PHP code is? I know the userid, and I want to fetch the rows from this table into the array of the variable "row", so I then can use it as "row['name']" and "row['email']. $result = mysql_query("SELECT email, name FROM mytable WHERE id=7"); while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) { printf("Email: %s Name: %s", $row["email"], $row["name"]); } Thanks.

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• How come nobody wrote RadioMenuItems class for Winforms?

  - by Pavel Radzivilovsky

  Or maybe google is just not so friendly to me? What I want is this simple thing: constructor that accepts an array of menu item objects Value get/set property that would set all the Checked properties right bind to all Clicked events of the supplied items and provide One event Working DataBind facilities If you encountered such a nice thing around, please direct me. No need for manual do-it-in-your-form1.cs-class links, please. This I can do myself.

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• Get cookie expiration

  - by Ashish Rajan

  Is it possible to read cookie expiration time with php ? When I print_r($_COOKIE) it outputs: Array ( [PHPSESSID] => 0afef6bac83a7db8abd9f87b76838d7f [userId] => 1232 [userEmail] => [email protected] [firstName] => user [lastName] => user ) So I think $_COOKIE don't have the expiration time, is it possible with some other function?

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• Using PHP, how to parse the title and meta tags from a HTML page?

  - by Dylan Taylor

  Hey guys, I need to be able to get the TITLE and DESCIPTION metadata out of a page. I've been trying to do this but I've been getting more errors than actual results. (I have an array of about 10 URLS, usually only about 2 of them give me the descrption. I have yet to get the title). So how do I, in PHP, get the Desc and Title from a remote page, and if there is none or if there's an error, ignore it? -Dylan

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• Reservoir sampling

  - by Codenotguru

  to retrieve k random numbers from an array of undetermined size we use a technique called reservoir sampling. Can anybody briefly highlight how it happens with a sample code??

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• jqueryui autocomplete: lists entries with search terms in middle

  - by Akshey

  Hi, I am using jqueryui autocomplete widget for autocompleting a 'country' field but I am facing an issue. Suppose the user enters "in", I want the jqueryui to list countries like 'india', 'indonesia' which start with 'in', but it also lists the countries which have 'in' somewhere in the name (like: argentina). How can I solve this issue? jQuery(".autocomplete").autocomplete({ source: CountrySuggestions, //CountrySuggestions is an array in javascript containing the list of countries minLength: 2 }); Akshey

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• Explode string and Count Value in Smarty?

  - by streetparade

  How do i explode and check if the array contains more than one value this doesnt work <b>{if $test->tester|explode|count>1}Vars:{else}Var:{/if}</b><br>

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• get particular column value

  - by zahir hussain

  i want take the particular column all value in multidimensional array... i need to get the value of or column ("rose","daisy","orchid")... how do get?

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• Looking for a regular expression to identify hard coded magic numbers in source code

  - by Brian

  A frequent issue in code reviews is whether a numeric value should be hard-coded in the code or not. Does anyone know of a nice regular expression that can catch 'magic numbers' in code like: int overDue = 30; Money fee = new Money(5.25D); without also getting a ton of false positives like for loop initialization code? for (int i = 0; i < array.length; i++) { }

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• Drupal UC "Quoting / Estimate" error

  - by Murtez

  Hi, I was playing around with Drupal UC and installed a module called "Quoting / Estimate" (http://drupal.org/project/quoting), I tried to run it and got this error: **warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'quoting_quote_clear_page' was given in /home/ergospec/public_html/d/includes/menu.inc on line 348** Has anyone run into this problem? Second question: anyone know of a good quotation module (where customer can request a price quote, not the brackets)? It doesn't have to be in Drupal. Any help is appreciated. Murtez

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• AS3 computeSpectrum fft true

  - by cr1ms0n3cho

  I am just trying to understand what the values sent back from computeSpectrum(bytes,true,0) mean. I have values ranging from 0 to 1 for each float i read from the byte array but does each value represent a range of Hz Thanks!

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• wordpress widget prob

  - by codedude

  I am using widgets in my wordpress theme and I need to remove the: <div class="textwidget"></div> that appears around the widget's content. I am using this in my function.php file: if (function_exists('register_sidebar')) register_sidebar(array('name'='Church Address', 'before_widget' = '', 'after_widget' = '', 'before_title' = '', 'after_title' = '', )); but I need to remove the div from around the text widget's body. Is there some way to do this?

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• How to receive XMLHttpRequest with PHP?

  - by Adrian

  I would like to be able to read XMLHttpRequest that is sent to a PHP page. I am using prototype's Ajax.Request function, and I am sending a simple XML structure. When trying to print the POST array on the PHP page, I don't get any output. Any help appreciated.

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• Do WordPress widget (or sidebar) hooks exist?

  - by Jeff

  I'm trying to filter ALL widget output through a simple filter, but can't find any hooks and was hoping to be pointed in the right direction. Or possibly my efforts are not even possible? My simple filter is something like this: function clean_widget_output( $input ) { return str_replace( array( "\t", "\n", "\r" ), '', $input ); } add_[FILTER OR ACTION]( 'need_a_hook', 'clean_widget_output', 99 ); Any ideas? I'm pretty new to PHP, but I can get around.

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• NoMethodError for time_zone_select in a form

  - by Jack

  I've set up my app exactly in line with the Railscasts Time Zone Episode 1 but when I run <%= f.time_zone_select :time_zone, ActiveSupport::TimeZone.us_zones %> I get this error NoMethodError in Users#new Showing app/views/users/new.html.erb where line #27 raised: You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.<= With line 27 being the aforementioned line. I am really stuck on this...

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• is there a preformance hit when using enum.values() vs. String arrays?

  - by Asaf

  i'm using enums to replace String constants in my java app (jre 1.5). is there a performance hit when i treat the enum as a static array of names, in a method that is called constatnly (e.g. when rendering the UI)? my code looks a bit like this: public String getValue(int col) { return ColumnValues.values()[col].toString(); } thanks, asaf :-)

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• jQuery - Image management

  - by kape123

  Is there a jQuery plug-in / JavaScript control that will allow me to display array of images, but with (at least) option to delete image on certain user action. Something like this: http://www.gmarwaha.com/jquery/jcarousellite/index.php but with dedicated delete button on every image. First extra option that I can think of is to rearrange order of images. If not... I guess I'll start extending mentioned jcarousellite myself....

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• Can't create file in Ada 95

  - by duder

  Hello, I'm trying to follow a standard reference for opening files but running into a constraint_error at the line when I call Ada.Text_IO.Create(). It says "range check failed". Any help appreciated, here's the code: WITH Ada.Text_IO; WITH Ada.Integer_Text_IO; USE Ada.Text_IO; USE Ada.Integer_Text_IO; PROCEDURE FileManip IS --Variables Start_Int : Integer; Stop_Int : Integer; Max_Length : Integer; --Output File MaxName : CONSTANT Positive := 80; SUBTYPE NameRange IS Positive RANGE 1..MaxName; OutFileName : String(NameRange) := (OTHERS => '#'); OutNameLength : NameRange; OutData : File_Type; --Array TYPE Chain_Array IS ARRAY(1..500) OF Integer; Sum : Integer := 1; BEGIN --Inputs Ada.Text_IO.Put(Item => "Enter a starting Integer: "); Ada.Integer_Text_IO.Get(Item => Start_Int); Ada.Text_IO.New_Line; Ada.Text_IO.Put(Item => "Enter a stopping Integer: "); Ada.Integer_Text_IO.Get(Item => Stop_Int); Ada.Text_IO.New_Line; Ada.Text_IO.Put(Item => "Enter a Maximum Length to search: "); Ada.Integer_Text_IO.Get(Item => Max_Length); Ada.Text_IO.New_Line; Ada.Text_IO.Put(Item => "Enter a output file name > "); Ada.Text_IO.Get_Line( Item => OutFileName, Last => OutNameLength); Ada.Text_IO.Create( File => OutData, Mode => Ada.Text_IO.Out_File, Name => OutFileName(1..OutNameLength)); Ada.Text_IO.New_Line;

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• zend framework 2 autentification using DbTable failure

  - by josepmra

  I have followed the zend instructions for implement my web Authentication using a database table. It's exactly the same code, but when render the page, the following exceptions appears: Zend\Authentication\Adapter\Exception\RuntimeException File: C:\xampp\htdocs\pfc\vendor\ZF2\library\Zend\Authentication\Adapter\DbTable.php Mensaje: The supplied parameters to DbTable failed to produce a valid sql statement, please check table and column names for validity. produced by this other: Zend\Db\Adapter\Exception\InvalidQueryException File: C:\xampp\htdocs\pfc\vendor\ZF2\library\Zend\Db\Adapter\Driver\Mysqli\Statement.php Mensaje: Statement couldn't be produced with sql: SELECT `users`.*, (CASE WHEN `password` = ? THEN 1 ELSE 0 END) AS `zend_auth_credential_match` FROM `users` WHERE `mail` = ? Seems to be that Statement.php can not execute the sql of above, but I send the sql by phpmyadmin replacing the ? for strings and work ok. I am sure that $dbAdapter works ok also because I have tested it and the columns name are "mail" and "password". This in my code, also I put the $dbAdapter test code. $dbAdapter = new DbAdapter(array( //This DbAdapter Work ok sure!! 'driver' => 'Mysqli', 'database' => 'securedraw', 'username' => 'root', 'password' => '' )); $fp = function($name) use ($dbAdapter) { return $dbAdapter->driver->formatParameterName($name);}; $sql = 'SELECT * FROM ' . $qi('users') . ' WHERE id = ' . $fp('id'); $statement = $dbAdapter->query($sql); $parameters = array('id' => 1); $sqlResult = $statement->execute($parameters); $row = $sqlResult->current(); $mail = $row['mail']; $password = $row['password']; //until here test $dbAdapter exitly!! //Start the auth proccess!! $authAdapter = new AuthDbTableAdapter($dbAdapter); $authAdapter->setTableName('users') ->setIdentityColumn('mail') ->setCredentialColumn('password'); $authAdapter->setIdentity('josep') ->setCredential('josep'); $authResult = $authAdapter->authenticate(); //This is the fail method!!!

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• How to add events that repeat on specific days of the week indefinitely with fullcalendar

  - by sufian

  I see the example for repeating events in the code but I'm confused as to how it works. How would I go about adding an event (adding events as an array for now) which occur every Monday at 4:30pm? I'm trying to use the basicWeek view.

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• Example about crypto/rand in Go

  - by nevalu

  Could put a little example about the use of crypto/rand [1]? The function Read has as parameter an array of bytes. Why? If it access to /dev/urandom to get the random data. func Read(b []byte) (n int, err os.Error) [1] http://golang.org/pkg/crypto/rand/

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• How to embed html table into the bpdy of email

  - by Michael Mao

  Hi all: I am sending info to target email via PHP native mail() method right now. Everything else works fine but the table part troubles me the most. See sample output : Dear Michael Mao : Thank you for purchasing flight tickets with us, here is your receipt : Your tickets will be delivered by mail to the following address : Street Address 1 : sdfsdafsadf sdf Street Address 2 : N/A City : Sydney State : nsw Postcode : 2 Country : Australia Credit Card Number : *************1234 Your purchase details are recorded as : <table><tr><th class="delete">del?</th><th class="from_city">from</th><th class="to_city">to</th><th class="quantity">qty</th><th class="price">unit price</th><th class="price">total price</th></tr><tr class="evenrow" id="Sydney-Lima"><td><input name="isDeleting" type="checkbox"></td><td>Sydney</td><td>Lima</td><td>1</td><td>1030.00</td><td>1030</td></tr><tr class="oddrow" id="Sydney-Perth"><td><input name="isDeleting" type="checkbox"></td><td>Sydney</td><td>Perth</td><td>3</td><td>340.00</td><td>1020</td></tr><tr class="totalprice"><td colspan="5">Grand Total Price</td><td id="grandtotal">2050</td></tr></table> The source of table is directly taken from a webpage, exactly as the same. However, Gmail, Hotmail and most of other emails will ignore to render this as a table. So I am wondering, without using Outlook or other email sending agent software, how could I craft a embedded table for the PHP mail() method to send? Current code snippet corresponds to table generation : $purchaseinfo = $_POST["purchaseinfo"]; //if html tags are not to be filtered in the body of email $stringBuilder .= "<table>" .stripslashes($purchaseinfo) ."</table>"; //must send json response back to caller ajax request if(mail($email, 'Your purchase information on www.hardlyworldtravel.com', $emailbody, $headers)) echo json_encode(array("feedback"=>"successful")); else echo json_encode(array("feedback"=>"error")); Any hints and suggestions are welcomed, thanks a lot in advance.

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