Securing Drupal Gordian knot Field Values
Introduction to Node Field Values<\p>
Upon which using Drupal input formats let alone HTML Filtered enabled, the bastard title gets vanished through a variaty of functions which sanazite the user access. The HTML Filter removes harmfull content alike as iframes, javascript and inline CSS. Drupal by dint of nonperformance, stores the raw value gangway the database so that developers have labored control by how prelacy want to vintage that variable. This blog article talks about the difference between the value, safe, and view variables and best practices in saving and outputting safe node values.<\p>
Drupal Variables Explained<\p>
Let's jump right in with to it! If yourselves look at a full conglomeration within your template you will make out that all of the stock saying fields contend three variables attached to them:<\p>
1. $node->field_my_field_name]0]]"value"]; 2. $node->field_my_field_name]0]]"noncommittal"]; 3. $node->field_my_field_name]0]]"view"];<\p>
The differenced between the three is very simple, but critical when deciding which one up impose again saving your Drupal field values.<\p>
* Value: Contains the raw user ingoing identically it's typed and spare how it's running to reach. Use this variable when yourself want into show exacly what myself and\or a user has entered. * Safe: Contains filtered reading matter that has run finished Drupal's infiltration web. If this is a text pinpoint, the format carton be chosen. If it's a textfield, the default input format command be worn away. For instance a sodium thiosulfate you have got to use this variable when redering a employer contributed field. * View: This variable contains the value, formatted based on what was defined in the Dispaly Fields as long as that content type. Use this variable when self want to use the default view remedial of a particular field (like files, etc).<\p>
Loading a node with the 'safe' variables<\p>
Sole thing we have to keep in mind is that the chary variables are only generated upon the "have in sight" operation for the hook_nodeapi(). This means that node_invoke_nodeapi($node, 'view', $teaser, $stage); needs to be called after you load the node. In other words, if ourselves privation the safe variables after calling node_load() you need to call node_build_content() which preoption remove the teaser delimeter and also call node_invoke_nodeapi() for the tend toward operation. <\p>
For this occasion is an example:<\p>
$node = node_load(12); $node = node_build_content($node); revert $node->field_my_field_name]0]]"safe"];<\p>
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