Filtering based on selection form (Ditto request)

5 Posts

slaveri Reply #1, 18 years, 10 months ago

Hello,

I have been successfully using Ditto for some basic lists + filters. But now I have a growing catalogue and I need a possibility to introduce filters based on user supplied criteria. Let me give you an example.

Say, I have a list of documents with two Template Variables assigned and set: Media type (say it can be DVD, Divx), Genre (say: Horror, Comedy, Action).

Now, I need to display a form stating:

Choose media type [Drop down box] Choose Genre [Drop down box] [Submit]

After a user clicks submit, I need to supply these selection criteria to Ditto and use it as a filter for selection.

So, I know vaguely what I need to do - I need to send a $_POST request, then analyze this request, create a &filter string and supply it to Ditto. But maybe someone has already done something similar?

Also, how would I then be able to clean up the search criteria?

Your help will be greatly appreciated!

93 Posts

feary Reply #2, 18 years, 9 months ago

I did my own little version of a "Ditto Selection Filtering". I don’t know how well this snippet does performance-wise but it works. I hope you guys could give me some feedback! Maybe there is an smoother way for this... but here you go:

<?php
// Get the variables from the form
$showFritext = $_POST['fritext'];
$showLan = $_POST['lan'];
$showKommun = $_POST['kommun'];

// "Some" if statements
if ( $showLan >0 ) {
$output1 = "tvlan,$showLan";
}

if ( $showKommun >1 ) {
$output2 = "|tvkommun,$showKommun";
}

if ( $showLan == 0 && $showFritext == "") {
$output2 = "tvkommun,$showKommun";
}

if ( $showFritext != "") {
$output3 = "pagetitle,$showFritext";
}

if ( $showLan == 0 && $showKommun == 0 && $showFritext == "" ) {
$filter = "";
}
else {
$filter = "&filter=`$output1|$output2|$output3`";
}

// Output the Ditto call
echo "[[Ditto? &startID=`2` &tpl=`ListArt` &summarize=`10` &paginate=`1` &extenders=`summary` &sortBy=`createdon` &sortDir=`DESC` $filter]]";
?>

4,205 Posts

dev_cw Reply #3, 18 years, 9 months ago

Clever idea, thanks for sharing.
I can’t say if this is more efficient but you could run Ditto directly from the snippet with the runSnippet API function.

http://wiki.modxcms.com/index.php/API:runSnippet

[font=Verdana]Shane Sponagle | [wiki] Snippet Call Anatomy | MODx Developer Blog | [nettuts] Working With a Content Management Framework: MODx

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Do you, Mr. Jones? - [bob dylan]

2,542 Posts

heliotrope Reply #4, 18 years, 9 months ago

Hi,

I would advice you to use tvExplorer Instead.

:-)

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