Moodle Quick Forms

Moodle Quick Forms Moodle - lib/formslib

Contents ,[object Object],[object Object],[object Object],[object Object]

Introduction to Moodle_QuickForm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cont… ,[object Object],[object Object],[object Object],[object Object]

Cont… ,[object Object],[object Object],[object Object],[object Object],[object Object]

Definition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

addElement() Syntax : $form->addElement ( type, name, label, …) Example : ,[object Object],[object Object],[object Object],[object Object]

closeHeaderBefore() Syntax : $form->closeHeaderBefore ( element_name )

setHelpButton() Syntax : $form->setHelpButton ( element_name, array( help_filename, title, module), supress_check ) $mform->setHelpButton(' questionsperpage ', array( ' questionsperpage ', get_string( ' questionsperpage ', ' quiz ' ), ' quiz ' ) ) Example :

addGroup() ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A 'group' in formslib is just a group of elements that will have a label and will be included on one line. Def :

setType() ,[object Object],[object Object],Syntax : $form->setType ( element_name, type) Example :

Most Commonly Used PARAM_* Types : alias of PARAM_ALPHA and is used for hidden fields specifying form actions PARAM_ACTION Used for Integers PARAM_INT ,[object Object],[object Object],PARAM_RAW ,[object Object],[object Object],[object Object],PARAM_NOTAGS Cleaning the plain text data. Strips all html tags. PARAM_TEXT Deprecated PARAM_CLEAN

setDefault() ,[object Object],[object Object],Syntax : $form->setDefault ( element_name, default value) Example :

addRule() $mform->addRule ( ‘elementname’, ‘ error_message’, ‘ ruletype’, ‘ external_ruledata’, ‘ server/client’, ‘ reset(bool)’ , ‘ force(bool)’ ) Syntax : Common Rule Types nonzero callback compare alphanumeric numeric nopunctuation email regex lettersonly required maxlength minlength rangelength

add_action_buttons $this->add_action_buttons ( $cancel = true, $ submitlabel =null) Syntax : ,[object Object],[object Object],[object Object]

Other ,[object Object],[object Object],After submitting a form, all the form information is get through get_data() function. save_files() function used for that FORM saves all the files uploaded to specified directory.

Cont… ,[object Object],$mform->registerRule ($name , $type , $data1 , $data2 ) $name = name of function / name of validation rule $type = 'regex' or 'callback' ('function' is also kept for backward compatibility) $data1 = Name of function, regular expression, classname , callback function needs to return true or false $data2 = Object parent of above function, name of the file Where,

Cont… ,[object Object],$mform->disabledIf ( $elementName, $dependentOn, $condition = 'notchecked', $value=null) ,[object Object],[object Object],[object Object],[object Object],[object Object]

disabledif() Cont… ,[object Object],[object Object],[object Object],[object Object]

Validation ,[object Object],[object Object],[object Object]

validation() ,[object Object],[object Object],[object Object]

MoodleQuickForm::addRule() Default error messages are defined in lang/{language}/form.php

moodleform::validation() $data = contains all the values set on submitting the value. $data is array which contains value in following form: $data[‘elementname’] Example: $s = $data[‘shortname’]; $error = is an array which stores error, while validating the submitted data. Syntax: $error[‘elementname’] Where, elementname should be same as name given while creating form.

Cont… $files in validation function is extra parameter for validating the files which are to be uploaded to system

References http://docs.moodle.org/en/Category:Formslib http://www.moodle.org/ http://pear.php.net/

Moodle Quick Forms

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