By Daniel Albert (resshin)
The behavior allows us to use multiple display field (such as "first_name" and "last_name") as a display field for generating list from a model.
This is really one of common issues: using multiple fields as display field when using the find('list') function.
Strangely enough, there's only little hint out there about how to do it "elegantly" in CakePHP. tclineks already make a great article in http://bin.cakephp.org/saved/19252#modify, but the code just won't works. I think it's happened because CakePHP now handles find function differently than the previous versions.
So then I wrote the code below to help anyone who need to use multiple fields in their display field.
Note: The afterFind function is taken without any change from tclineks' bin.
Using it is as simple as this:
1. In your model, define that the model is acting as MultipleDisplayFieldBehavior. For example, see Figure 1.
2. To generate a list, simply use the find('list') function. For example, see Figure 2.
Note: you must define the "displayField" property. This field (which can be a virtual/non-existent field) will then holds the concatenation of display fields that you defined.
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Friday, November 28, 2008
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