Reduplicate by MEOW_FieldSetCollection value on collection

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November 5, 2014 at 3:09 pm #3555
Post count: 13

I have a collection of MEOW_FieldSetCollection objects and want to filter the collection on a value of a custom field.

I can’t seem to pass a string to the dedupe() method to filter the collection of objects. How do I filter the collection based on duplicate attribute values?

November 5, 2014 at 4:55 pm #3557
Post count: 207

So just to clarify, I presume you’re trying to dedupe by passing in a full-field string. As in “set_name.field_name”?

That actually won’t work currently unfortunately, as the dedupe method is currently setup to allow expressions that resolve to a property through a slightly different mechanism. A “set_name.field_name” is a bit different, as it uses a runtime evaluated expression to get the value.

It actually ought to work with anything, and I’ve noted it down to be fixed. Until then though, I believe something like this should work:

Basically you can extend the post class, and then give it a named method which can then be used to dedupe the posts.

Let me know if that helps.

November 5, 2014 at 8:21 pm #3558
Post count: 13

Seems to have. I did have to make some slight changes, mainly around casting to a string so the function accepted the dedupe rule:

foreach ($wf->type(“person”)->posts->dedupe(“person_type”) as $key) {
echo $key->person->type; // Outputs a unique person type list

In functions, I had to cast to a string:
class MY_Post extends MEOW_Post {

function person_type() {
return ((string) $this->person->type);


November 5, 2014 at 8:23 pm #3559
Post count: 207

Ahh, yep, you’re right. You can also use $this->person->type->val();

Sorry about the workaround, but I’m glad you got it going.

November 5, 2014 at 8:32 pm #3560
Post count: 13

Thanks for the help! Very much appreciated. I want to keep my code as slick and clean as possible.. I like how the MP plugin is very Java collection-ishs.

Two other things I’ve been doing which I’m not entirely happy about:

Creating a multi-dimensional array for all the filtered options by data type, which I then output to a form using a double loop:

$filters = array(
“type” => array(),
“hair” => array(),
“blah” => array()

// Loop code with de-dup here as $key
if ($key != “”) {
$filters[“type”][] = $key->person->type->val();

Then create a form with all the unique filter options:

<!– Filter form –>
<form action=”” method=”get”>
<?php foreach ($filters as $key => $array) { ?>
<label><?php echo ucwords($key) ?>:<label>
<select name=”<?php echo ucwords($key) ?>”>
<?php foreach ($array as $id => $value) { ?>
<option value=”<?php echo $value ?>”><?php echo $value ?></option>
<?php } ?>

<?php } ?>

Then I’ve got some jQuery over the top which responds when an option is selected and posts the updated id => keys via Ajax back to the form, which updates the results table:
$(function() {
$(‘select’).bind(‘change’, function(e) {

type: “POST”,
dataType: “json”,
data: JSON.stringify(getValues()),
//dataType: “html”,
cache: false,
success: function(data){
return false;


// Return select name and value
function getValues() {
var options = $(‘select’);
var values = $.map(options ,function(option) {
return new Array(new Array(, option.value));

return values;


Ideally, I was thinking of moving the data filtering into the controller (functions.php) file, with different case rules…so I just have to output the view in the template.
Is there any other way master press could optimise this/shorten the code?

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