moodle_local_treestudyplan/classes/local/forms/studyplan_editform.php

<?php

namespace local_treestudyplan\local\forms;

/**
 * Moodleform class for the studyplan editor. A Moodleform is used here to facilitate a rich editor 
 * in the studyplan description 
 */
class studyplan_editform extends formbase {

    /**
     * Validate security access for this form based on the provided parameters 
     * Return true if validation passes, false or throw an exception if it does not.
     * 
     * @param array $params The parameters for form initialization
     * @return bool True if security validation passes. 
     * @throws \moodle_exception if access denied for a specific reason.
     */
    public static function check_security(array $params) {
        
    }

    /**
     * Generate form data from parameters
     * Also validate parameters and access permissions here
     * 
     * @param array $params The parameters for form initialization
     * @return array Form data based on parameters
     */    
    public static function init_data(array $params) {
        
    }


    /**
     * Set up the form definition
     */
    public function definition() {
        $mform = $this->_form;

        // Define the form
        $mform->addElement('editor', 'activityeditor',
             get_string('activityeditor', 'assign'), array('rows' => 10), array('maxfiles' => EDITOR_UNLIMITED_FILES,
            'noclean' => true, 'context' => $this->context, 'subdirs' => true));
        $mform->addHelpButton('activityeditor', 'activityeditor', 'assign');
        $mform->setType('activityeditor', PARAM_RAW);
    }

    /** 
     * Process the submission and perform necessary actions
     * @throws \moodle_exception if an error must be given for a specific reason.
     */
    public function process_submission()
    {
        
    }


}