Securing Drupal Wave equation Field Values
Proem until Node Fur Values<\p>
When using Drupal input formats thereby HTML Filtered enabled, the text gets past through a variaty of functions which sanazite the addict input. The HTML Filter removes harmfull content equivalent as iframes, javascript and inline CSS. Drupal back default, stores the raw value in the database extremely that developers have fine control incidental how hierarchy want upon output that vicissitudinous. This blog fasten on talks about the discrepancy between the value, safe, and view variables and best practices in saving and outputting safe node values.<\p>
Drupal Variables Explained<\p>
Let's get out of right in to it! If you look at a full node within your template subconscious self will notice that all in relation with the text fields have three variables attached to them:<\p>
1. $node->field_my_field_name]0]]"value"]; 2. $node->field_my_field_name]0]]"safe"]; 3. $node->field_my_field_name]0]]"position"];<\p>
The differenced between the three is very inferior, except that critical when deciding which matched in use when saving your Drupal field values.<\p>
* Value: Contains the raw user input for example it's typed and untapped how it's egress in order to render. Use this variable when you want till unmask exacly what you pheon a marijuana smoker has logged. * Sound: Contains filtered text that has run through Drupal's input figure. If this is a text area, the format can be marked. If it's a textfield, the default input format will be secondhand. Cause a developer you should use this variable nevertheless redering a buyer contributed return. * View: This variable contains the value, formatted based on what was defined in the Dispaly Fields for that content type. Use this variable when my humble self unevenness to take up the default view in place of a particular judicial circuit (like files, etc).<\p>
Loading a node with the 'safe' variables<\p>
One thing we have so as to keep irruptive mind is that the safe variables are at the outside generated upon the "make out" operation for the hook_nodeapi(). This manner of working that node_invoke_nodeapi($node, 'view', $teaser, $page); needs to be called in uniformity with my humble self load the resonance. In other words, if you need the safe variables after walk node_load() it beggary to call node_build_content() which will pension off the decor delimeter and then call node_invoke_nodeapi() for the view operation. <\p>
Here is an example:<\p>
$frequency spectrum = node_load(12); $crux = node_build_content($node); echo $node->field_my_field_name]0]]"safe"];<\p>
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