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POProcessing dynamically generated text boxes which have variable names
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  1. POProcessing dynamically generated text boxes which have variable names
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    copied!<p>I'm working on a script that writes out a form based on an uploaded CSV file. The CSV file contains sections that are separated by a line containing only ',,,,'. Each block contains information about a server that is going to be kickstarted. It looks like this:</p> <pre> host,tctivt2r6ra03,,, int,eth0,10.153.196.248,255.255.255.0,10.153.196.1 int,eth1,10.153.157.113,255.255.255.128,10.153.157.1 int,eth2,10.153.157.241,255.255.255.128,10.153.157.129 int,eth3,00:50:56:ac:69:cb,, part,/home,10,, part,swap,10,, part,/opt,60,, part,/data,30,, ,,,, </pre> <p>This input is written to a div which contains a table. Each row of input being a unique row in the table. Some values end up in text boxes.</p> <p>The script generates output that looks like <a href="https://dl.dropbox.com/u/116457/upload_file_ouput.PNG" rel="nofollow">this</a>.</p> <p>Each box is generated dynamically and consists of the host ID starting at 0 and the box number also starting at 0. For example:</p> <pre><code>&lt;tr&gt;&lt;th&gt;eth0: &lt;/th&gt;&lt;td&gt;&lt;input type="text" value="10.153.196.248" name="host0Box0" /&gt;&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="255.255.255.0" name="host0Box1" /&gt;&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="10.153.196.1" name="host0Box2" /&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt; </code></pre> <p>The question I have is how to process a form that has a variable number of boxes. Specifically, when processing the 'part' lines of the input there can be six boxes or more.</p> <p>Example with four partitions:</p> <pre><code>&lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /&lt;/td&gt;&lt;td&gt;10&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /var&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="10" name="host0Box9" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /home&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="10" name="host0Box10" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; swap&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="10" name="host0Box11" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /opt&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="60" name="host0Box12" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt;&lt;input type="text" value="/data" name="host0Box13" /&gt;/td&gt;&lt;td&gt;&lt;input type="text" value="30" name="host0Box14" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Number of Disks: &lt;/th&gt;&lt;td&gt;&lt;input type="text" value="1" name="host0Disks" /&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;span&gt;&lt;br /&gt;&lt;br /&gt;&lt;/span&gt; </code></pre> <p>Example with six partitions:</p> <pre><code>&lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /&lt;/td&gt;&lt;td&gt;10&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /var&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="10" name="host1Box9" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /home&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="10" name="host1Box10" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; swap&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="10" name="host1Box11" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt; /opt&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="60" name="host1Box12" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt;&lt;input type="text" value="/data" name="host1Box13" /&gt;&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="30" name="host1Box14" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt;&lt;input type="text" value="/test1" name="host1Box15" /&gt;&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="30" name="host1Box16" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Partition name:&lt;/th&gt;&lt;td&gt;&lt;input type="text" value="/test2" name="host1Box17" /&gt;&lt;/td&gt;&lt;td&gt;&lt;input type="text" value="20" name="host1Box18" /&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;th&gt;Number of Disks: &lt;/th&gt;&lt;td&gt;&lt;input type="text" value="1" name="host0Disks" /&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;span&gt;&lt;br /&gt;&lt;br /&gt;&lt;/span&gt; </code></pre> <p>This is a work in progress that I know I'm going to have to change in order to properly process each host section. In the meantime, I'm trying to sort out this one issue.</p> <p>My question right now is, when I I eventually do get to the point of processing the form, what approach should I use to account for dynamically allocated item names when the $_POST array is populated? Do I pull the array values out and place them in a different array? Can I iterate over the $_POST array like a normal array? Is there another option that I'm not aware of?</p>
 

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