Difference between revisions of "DesignPatternStep7"

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(New page: Main Page >> Advanced Web Technologies >> Workbook >> Week 04 >> Step 1 - Create and populate database)
 
 
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[[Main Page]] >> [[6CC001|Advanced Web Technologies]] >> [[6CC001 - Workbook|Workbook]] >> [[6CC001 Workshop - week 04|Week 04]] >> Step 1 - Create and populate database
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[[Main Page]] >> [[6CC001|Advanced Web Technologies]] >> [[6CC001 - Workbook|Workbook]] >> [[6CC001 Workshop - week 04|Week 04]] >> Step 7 - Deleting messages
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== Step 7 - Deleting messages ==
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Finally, let’s create a new action in charge of message deletion.
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Again if you browse the mouse over the “delete this message” links, you will see URLs such as “index.php?cmd=BlogDelete&id=19”
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So we need a new Command_BlogDelete class. Here is the code:
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<pre>
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// Command_BlogDelete.php
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//############################################################################
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// SearchVenueCommand class
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//############################################################################
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class Command_BlogDelete extends Command
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{
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  //############################################################################
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  // doExecute
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  //############################################################################
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  function doExecute(Request $request)
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  {
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    // Get data from request
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    $id = $request->getProperty('id');
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    // Create manager object
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    $manager = new ManagerMessage();   
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    // Add to database
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    $manager->deleteMessage($id);
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    // Redirect to index
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    header("location:index.php");
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  }
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}
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</pre>
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Nothing too complicated here...
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=== Checkpoint ===
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You should now be able to delete messages.
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Note: It is always better practice to ask users to confirm deletion first... but you can do that bit&nbsp;;)
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=== THE END ===
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Well done!

Latest revision as of 13:57, 22 September 2011

Main Page >> Advanced Web Technologies >> Workbook >> Week 04 >> Step 7 - Deleting messages

Step 7 - Deleting messages

Finally, let’s create a new action in charge of message deletion.

Again if you browse the mouse over the “delete this message” links, you will see URLs such as “index.php?cmd=BlogDelete&id=19”

So we need a new Command_BlogDelete class. Here is the code:

// Command_BlogDelete.php

//############################################################################
// SearchVenueCommand class
//############################################################################
class Command_BlogDelete extends Command
{
  //############################################################################
  // doExecute
  //############################################################################ 
  function doExecute(Request $request)
  {
    // Get data from request
    $id = $request->getProperty('id');
    
    // Create manager object
    $manager = new ManagerMessage();    
    
    // Add to database
    $manager->deleteMessage($id);
    
    // Redirect to index
    header("location:index.php");
  }
}

Nothing too complicated here...

Checkpoint

You should now be able to delete messages.

Note: It is always better practice to ask users to confirm deletion first... but you can do that bit ;)

THE END

Well done!