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• Hashtable implementation for C

  - by Alex

  what is a good hashtable implementation for C? I need to use it with mpicc compiler. Delete function is not necessary.

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• Model self referential collections in Rails

  - by Najitaka

  I have written an application for an online clothing store in Rails 2.3.5. I want to show related Products when a customer views the Product Detail page. For example, if the customer views the detail page for a suit, I'd like to display the accessory products that match the dress such as a vest, shoes, and belt. I have named the related products an Ensemble. However, the vest, shoes, and belts are also Products which is what has me struggling. I have it working as follows but I know it's not the Rails way. I have a Products table for all of the products. Not important here but I also have a ProductDetails table. I have an Ensembles table that has the following columns: product_id - the main or origination product, the one displayed on the detail page outfit_id - the related or accessory product In setting up the data, on the Products list, for each Product I have an Ensemble link. This link takes you to the index action in the Ensembles controller. Using the id from the "main" Product, I find all of the associated Ensemble rows by product_id or I create a new ensemble and assign the id from the main product as the product_id. I'd like to just be able to do @product.related_products to get an Ensemble collection. Also on the index page I list the columns of the main product so the user can be sure their main product was the one they selected from the list. I also have a select list of the other products, with an Add to Ensemble action. Finally on the same index page, I have a table that displays the products that are already in the ensemble and in that list each row has a destroy link to remove a particular product from the ensemble. It would be nice if given a single Ensemble row @ensemble I could do @ensemble.product to get the Product related to the outfit_id of the ensemble row. I've got it working without associations but I have to run queries in the controller to build my own @product, @ensemble, and @ensembles collections. Also the only way I found to destroy an ensemble row is by Ensemble.connection.delete(sql to delete), simple @ensemble.destroy doesn't work. Anyone know how I would set up the associations or have a link to a site explaining a similar setup. None of the examples I found use the same table. They have A related to B through C. I want A related to other A through B.

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• subversion: getting rid of versioned ".svn" directory

  - by AndreasT

  Hi there. I don't know exactly how it happened, but I have a versioned ".svn" directory in my repository. Don't ask me how it got there. If I tell svn to delete it, it does not want to, since .svn is a reserved argument. Force does not work. Any ideas?

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• The configuration in win 7 for Apache 2.2 + php 5.2

  - by user312079

  Every time I start apache , it always fails. The problem is in loadmodulephp5... The error log:[warn] pid file C:/windows/Apache2/logs/httpd.pid overwritten — Unclean shutdown of previous Apache run? I tried to delete this file and then start apache.But this file had been created again. Any solution?

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• Can you generate a todo.txt file from \todo commands with Doxygen ?

  - by anno

  /// \todo Loop must be rewritten ... /// \todo Delete this loop Can Doxygen generate a todo.txt file containing these comments ?

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• How do i make a non-sparse git repository into a sparse one?

  - by Arthur Ulfeldt

  I would like to make a repo into a sparse repo so people can push to it with out big nasty warnings. I could delete it and clone it again... but perhaps there is a more elegant way?

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• Getting all database entries into organized array

  - by Industrial

  Hi everyone, I have just made the update/add/delete part for the "Closure table" way of organizing query hierarchical data that are shown on page 70 in this slideshare: http://www.slideshare.net/billkarwin/sql-antipatterns-strike-back However, I have a bit of an issue getting the full tree back as an multidimensional array from a single query. Here's what I would like to get back: array ( 'topvalue' = array ( 'Subvalue', 'Subvalue2', 'Subvalue3' = array ('Subvalue 1', 'Subvalue 2', 'Subvalue 3' ) ); );

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• ruby on rails - link_to() problem

  - by Oded Harth

  Hi, I made this link in order to destroy a comment :   <%= link_to 'Destroy Comment', [comment.post, comment], :confirm => 'Are you sure?', :method => :delete %> this suppose to send to the destroy action in the comments_controller. the problem is that it searches for the 'show' action, Instead of the 'destroy' action : Unknown action The action 'show' could not be found for CommentsController Do you think you know why it does that? Thanks, Oded edit: problem solved I used 'button_to'

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• User define function with in stored procedure

  - by Rajagopalk

  hi, can we create user define function with in stored procedure then end of the store procedure we need to delete that custom user define function.

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• textbox accept only digits

  - by hiba salem

  Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress Dim allowedChars As String = "0123456789$," If allowedChars.IndexOf(e.KeyChar) = -1 Then ' Invalid Character e.Handled = True End If End Sub this code accept only digits and its working like a charm but if i typed a wrong number its not allowing me to use the delete or the backspace on the keyboard how to solve this problem ?

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• What is the difference?

  - by Eragonio

  I try out CakePHP. I follow this Tutorial and can't find out why this code doesn't work. The code from the tutorial works fine. echo $html -> link('Löschen', array('action' => 'delete', 'id' => $post['Post']['id']), null, 'Sind Sie sicher?' );

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• Visual Studio 2008 setup project, how to block the folders from deleting during Uninstall?

  - by Alex

  Hi, I have the following problem. After I uninstall the project - all folder is removing. But it contains the files which shouldn't be deleted. What could you advice me? Ideally I would haeve the option which will be proposed to the user while uninstall with checkbox if it is necessary to delete this folder or not. Thank you in advance!

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• Rescuing redirect :back after destroy in Rails?

  - by Andreas

  I'm looking for a best practice solution to be able to keep using redirect :back after a successful destroy action, as many items can be deleted from a variety of listings. Unfortunately that strategy fails for the one case when the delete is initiated from the item view itself. What approach do you recommend for this situation?

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• is this correct syntax to create onclick event on dynamic html document

  - by user321382

  var val1=document.createElement("input"); val1.setAttribute('type',"image"); val1.setAttribute('src',"../images/delete.gif"); val1.setAttribute('id',chkid); val1.setAttribute('name',"val2"); val1.setAttribute('class',"mylist2"); val1.onclick=function(){var block=document.getElementById("repeat_ul"); var obj=document.getElementById('country_chk'); document.block.removeChild(obj);};

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• Can I override a query in DJango?

  - by stinkypyper

  I know you can override delete and save methods in DJango models, but can you override a select query somehow to intercept and change a parameter slightly. I have a hashed value I want to check for, and would like to keep the hashing internal to the model.

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• Safely Removing DataRow In ForEach

  - by ChloeRadshaw

  I dont understand why I cannot do the below - This should work?? foreach (DataRow dataRow in dataTable.Rows) { if (true) { dataRow.Delete(); } }

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• solution for updating table based on data from another table

  - by I__

  i have 2 tables in access this is what i need: 1. if the PK from table1 exists in table2, then delete the entire record with that PK from table2 and add the entire record from table1 into table2 2. if the PK does not exist then add the record i need help with both the sql statement and the VBA i guess the VBA should be a loop, going through every record in table1. inside the loop i should have the select statement

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• need some tips about distributed c# desktop application

  - by amipax

  Hi , my doubt is the following, I have a network with 5 pcs, each machine has XP installed, I don't know much about distributed desktop applications, so what i want is to create a C# application using sql server 2005 database and visual studio 2008. I want that each pc can have access to create/update/delete data on the one XP machine that will store the database files. Do i need WServer2003 or any special network technology?? thanks in advance

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• In String.replace("\c","") what ASCII value is ""?

  - by Tom

  Hi, im just writing my own replace method for any weird characters and i used the ASCI value 0, null to replace unwanted characters, i was hoping for them to be 'deleted', but this doesnt work. A gap just appears in the string. What exactly does String.Replace() do when removing a character for ""? Does it shift them all down and then 'delete' the final character or something?

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• When/Why to use Cascading in SQL Server?

  - by Joel Coehoorn

  When setting up foreign keys in SQL Server, under what circumstances should you have it cascade on delete or update, and what is the reasoning behind it? This probably applies to other databases as well. I'm looking most of all for concrete examples of each scenario, preferably from someone who has used them successfully.

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• Second min cost spanning tree.

  - by Evil

  Hello. I'm writing an algorithm for finding the second min cost spanning tree. my idea was as follows: 1) Use kruskals to find lowest MST. 2) Delete the lowest cost edge of the MST. 3) Run kruskals again on the entire graph. 4) return the new MST. My question is this: Will this work? Is there a better way perhaps to do this?

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• jquery - clone nth row of a table?

  - by John

  I'm trying to use jquery to clone a table row everytime someone presses the add-row button. Can anyone tell me what's wrong with my code? I'm using HTML + smarty templating language in my view. Here's what my template file looks like: <table> <tr> <td>Description</td> <td>Unit</td> <td>Qty</td> <td>Total</td> <td></td> </tr> <tbody id="entries"> {foreach from=$arrItem item=i name=inv} <tr> <td> <input type="hidden" name="invoice_item_id[]" value="{$i.invoice_item_id}"/> <input type="hidden" name="assignment_id[]" value="{$i.assignment_id}" /> <input type="text" name="description[]" value="{$i.description}"/> </td> <td><input type="text" class="unit_cost" name="unit_cost[]" value="{$i.unit_cost}"/></td> <td><input type="text" class="qty" name="qty[]" value="{$i.qty}"/></td> <td><input type="text" class="cost" name="cost[]" value="{$i.cost}"/></td> <td><a href="javascript:void(0);" class="delete-invoice-item">delete</a></td> </tr> {/foreach} </tbody> <tfoot> <tr><td colspan="5"><input type="button" id="add-row" value="add row" /></td></tr> </tfoot> </table> Here's my Jquery Javascript call, which I know gets fired when I put in an alert() statement. So the problem is with me not knowing how jquery works. $('#add-row').live('click', function() {$('#entries tr:nth-child(0)').clone().appendTo('#entries');}); So what am I doing wrong?

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• If I have a Riak DB, should it store to Amazon S3 or to the EC/2 instance?

  - by tesmar

  I am setting up an Amazon EC/2 instance, and am putting Riak on it. I am wondering if I should store the data locally (and not ever delete the instance), or set up Riak to store to S3 and bring up/take down instances as I need?

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• Can i use a parameter multiple times in the qame query?

  - by djerry

  Hey guys, i was wondering, can a parameter be used more then once in the same query, like this : MySqlParameter oPar0 = new MySqlParameter("e164", MySqlDbType.String); oPar0.Value = user.E164; string sSQL0 = "Delete from callmone.call where (caller=?e164 or called=?e164);"; clsDatabase.ExecuteSQL(sSQL0, oPar0); Is this possible or should i write 2 parameters?

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• Find all possible starting positions of a regular expression match in perl, including overlapping matches?

  - by jonderry

  Is there a way to find all possible start positions for a regex match in perl? For example, if your regex was "aa" and the text was "aaaa", it would return 0, 1, and 2, instead of, say 0 and 2. Obviously, you could just do something like return the first match, and then delete all characters up to and including that starting character, and perform another search, but I'm hoping for something more efficient.

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