Databases
StackOverflow2013
Postsdbo
POIs it safe to do query with Model while in Behavior's BeforeSave callback?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POIs it safe to do query with Model while in Behavior's BeforeSave callback?
    primarykey
    data
    text
    <p>I don't see this documented anywhere, so I ask you, my dear Cake-eaters.</p> <p><strong>Inside</strong> a CakePHP's <strong><code>Behavior::BeforeSave(&amp;$Model)</code></strong> method, I read and write changes to <code>$Model-&gt;data</code> array. Before I am finished, I need to read some other records from the database. I am worried that, if I use <code>$Model-&gt;find()</code>, it will overwrite the current data within the model, which is about to be saved.</p> <p>Viewing the source code, the <a href="http://api20.cakephp.org/view_source/model#line-2476" rel="nofollow"><code>Model::find()</code></a> function clearly resets the <code>Model::$id</code> variable. This is the same variable I later use to check if a field is being updated.</p> <p>Here's an example:</p> <pre><code>&lt;?php class UniqueBehavior extends ModelBehavior { function beforeSave(&amp;$Model){ $value = $Model-&gt;data[$Model-&gt;alias]['unique_field']; $query = array('conditions' =&gt; array('unique_field' =&gt; $value)); if ($Model-&gt;find('first', $query){ // Does $Model::find() reset the internal $Model-&gt;data array? $Model-&gt;data[$Model-&gt;alias]['unique_field'] = "..." //... some other code here } //ALSO... if ($Model-&gt;exists()) // Returns true if a record with the currently set ID exists. $slug = $Model-&gt;field('slug'); // this should fetch the slug of the currently updated Model::id from the database // if I do find()'s, can I trust that the record I'm getting is the right one? } } ?&gt; </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USthecodeparadox
    1. USVanja D.
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POIs it safe to do query with Model while in Behavior's BeforeSave callback?
      1. USSaanch
      1. VTFavorite
    2. VO
      singulars
      1. POIs it safe to do query with Model while in Behavior's BeforeSave callback?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POIs it safe to do query with Model while in Behavior's BeforeSave callback?
      1. USJoep
      1. VTFavorite
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload