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How to call a Drupal custom function from a basic page?
You are trying to add a form to a page. But if you just add PHP code to your page, then this code will be executed every time you call the page. Luckily, form building is easy in Drupal. You define one function to layout your form (hook_form)]
What is the function db _ QUERY in Drupal?
function db_query. Executes an arbitrary query string against the active database. Use this function for SELECT queries if it is just a simple query string. If the caller or other modules need to change the query, use db_select() instead.
How to decode an exception in Drupal 7?
Returns and optionally sets the filename for a system resource. Decodes an exception and retrieves the correct caller. Core systems for the database layer. An simple example borrowed from http://api.drupal.org/api/group/database/7 check it out for a good overview of the Database abstraction layer.
How to add a form to a Drupal page?
As your answer is closer to the solution, you might just extend your example to how to add a form to a Drupal 7 page. The current approach of writing the markup to the page directly is not Drupal way of coding. – Mario SteinitzJan 30 ’16 at 7:42
How to create a form API in Drupal?
FormBase implements FormInterface, and therefore any form that has FormBase in its hierarchy is required to implement a few methods: This needs to return a string that is the unique ID of your form. Namespace the form ID based on your module’s name. This returns a Form API array that defines each of the elements your form is composed of.
How to create an Ajax request in Drupal?
In a nutshell an AJAX request follows these steps: Drupal builds a form element with a set of #ajax properties. ajax.js finds all the form elements on the page that have an #ajax[‘callback’] or an #ajax[‘path’] set and adds an event handler for the #ajax[‘event’] set on that form element.
Which is the Drupal 8 equivalent of getform ( )?
The Drupal 8 equivalent of drupal_get_form() is the following: The argument passed to the getForm() method is the name of the class that defines your form and is an implementation of \\ Drupal\\Core\\Form\\FormInterface. If you need to pass any additional parameters to the form, pass them on after the class name.