Class: HTML_QuickForm_advcheckbox

Source Location: /HTML_QuickForm-3.2.13/QuickForm/advcheckbox.php

Class Overview

HTML_Common
   |
   --HTML_QuickForm_element
      |
      --HTML_QuickForm_input
         |
         --HTML_QuickForm_checkbox
            |
            --HTML_QuickForm_advcheckbox

HTML class for an advanced checkbox type field

Author(s):

Alexey Borzov <avb at php.net>
Jason Rust <jrust at php.net>

Version:

Release: 3.2.13

Inherited Variables

Inherited Methods

Class: HTML_QuickForm_checkbox

HTML_QuickForm_checkbox::HTML_QuickForm_checkbox(): Class constructor
HTML_QuickForm_checkbox::exportValue(): Return true if the checkbox is checked, null if it is not checked (getValue() returns false)
HTML_QuickForm_checkbox::getChecked(): Returns whether a checkbox is checked
HTML_QuickForm_checkbox::getFrozenHtml(): Returns the value of field without HTML tags
HTML_QuickForm_checkbox::getText(): Returns the checkbox text
HTML_QuickForm_checkbox::getValue(): Returns the value of the form element
HTML_QuickForm_checkbox::onQuickFormEvent(): Called by HTML_QuickForm whenever form event is made on this element
HTML_QuickForm_checkbox::setChecked(): Sets whether a checkbox is checked
HTML_QuickForm_checkbox::setText(): Sets the checkbox text
HTML_QuickForm_checkbox::setValue(): Sets the value of the form element
HTML_QuickForm_checkbox::toHtml(): Returns the checkbox element in HTML

Class: HTML_QuickForm_input

HTML_QuickForm_input::HTML_QuickForm_input(): Class constructor
HTML_QuickForm_input::exportValue(): We don't need values from button-type elements (except submit) and files
HTML_QuickForm_input::getName(): Returns the element name
HTML_QuickForm_input::getValue(): Returns the value of the form element
HTML_QuickForm_input::onQuickFormEvent(): Called by HTML_QuickForm whenever form event is made on this element
HTML_QuickForm_input::setName(): Sets the input field name
HTML_QuickForm_input::setType(): Sets the element type
HTML_QuickForm_input::setValue(): Sets the value of the form element
HTML_QuickForm_input::toHtml(): Returns the input field in HTML

Class: HTML_QuickForm_element

HTML_QuickForm_element::HTML_QuickForm_element(): Class constructor
HTML_QuickForm_element::accept(): Accepts a renderer
HTML_QuickForm_element::apiVersion(): Returns the current API version
HTML_QuickForm_element::exportValue(): Returns a 'safe' element's value
HTML_QuickForm_element::freeze(): Freeze the element so that only its value is returned
HTML_QuickForm_element::getFrozenHtml(): Returns the value of field without HTML tags
HTML_QuickForm_element::getLabel(): Returns display text for the element
HTML_QuickForm_element::getName(): Returns the element name
HTML_QuickForm_element::getType(): Returns element type
HTML_QuickForm_element::getValue(): Returns the value of the form element
HTML_QuickForm_element::isFrozen(): Returns whether or not the element is frozen
HTML_QuickForm_element::onQuickFormEvent(): Called by HTML_QuickForm whenever form event is made on this element
HTML_QuickForm_element::setLabel(): Sets display text for the element
HTML_QuickForm_element::setName(): Sets the input field name
HTML_QuickForm_element::setPersistantFreeze(): Sets wether an element value should be kept in an hidden field when the element is frozen or not
HTML_QuickForm_element::setValue(): Sets the value of the form element
HTML_QuickForm_element::unfreeze(): Unfreezes the element so that it becomes editable

Class Details

[line 52]
HTML class for an advanced checkbox type field

Basically this fixes a problem that HTML has had where checkboxes can only pass a single value (the value of the checkbox when checked). A value for when the checkbox is not checked cannot be passed, and furthermore the checkbox variable doesn't even exist if the checkbox was submitted unchecked.

It works by prepending a hidden field with the same name and another "unchecked" value to the checbox. If the checkbox is checked, PHP overwrites the value of the hidden field with its value.

Author: Alexey Borzov <avb@php.net>
Author: Jason Rust <jrust@php.net>
Version: Release: 3.2.13
Since: 2.0

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Method Detail

HTML_QuickForm_advcheckbox (Constructor) [line 89]

void HTML_QuickForm_advcheckbox(
[string
$elementName = null], [string
$elementLabel = null], [string
$text = null], [mixed
$attributes = null], [mixed
$values = null])

Class constructor

Since: 1.0
Access: public

Parameters:

string	`$elementName`	—	(optional)Input field name attribute
string	`$elementLabel`	—	(optional)Input field label
string	`$text`	—	(optional)Text to put after the checkbox
mixed	`$attributes`	—	(optional)Either a typical HTML attribute string or an associative array
mixed	`$values`	—	(optional)Values to pass if checked or not checked

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exportValue [line 274]

void exportValue(

&$submitValues, 
$assoc)

This element has a value even if it is not checked, thus we override

checkbox's behaviour here

Overrides HTML_QuickForm_checkbox::exportValue() (Return true if the checkbox is checked, null if it is not checked (getValue() returns false))

Parameters:

	`&$submitValues`	—
	`$assoc`	—

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getFrozenHtml [line 225]

void getFrozenHtml(
)

Unlike checkbox, this has to append a hidden input in both

checked and non-checked states

Overrides HTML_QuickForm_checkbox::getFrozenHtml() (Returns the value of field without HTML tags)

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getOnclickJs [line 127]

string getOnclickJs(
string
$elementName)

Create the javascript for the onclick event which will set the value of the hidden field

Deprecated: Deprecated since 3.2.6, this element no longer uses any javascript
Access: public

Parameters:

string $elementName — The element name

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getPrivateName [line 108]

string getPrivateName(
string
$elementName)

Gets the private name for the element

Deprecated: Deprecated since 3.2.6, both generated elements have the same name
Access: public

Parameters:

string $elementName — The element name to make private

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getValue [line 185]

mixed getValue(
)

Returns the element's value

Access: public

Overrides HTML_QuickForm_checkbox::getValue() (Returns the value of the form element)

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onQuickFormEvent [line 244]

void onQuickFormEvent(
string
$event, mixed
$arg, object
&$caller)

Called by HTML_QuickForm whenever form event is made on this element

Since: 1.0
Access: public

Overrides HTML_QuickForm_checkbox::onQuickFormEvent() (Called by HTML_QuickForm whenever form event is made on this element)

Parameters:

string	`$event`	—	Name of event
mixed	`$arg`	—	event arguments
object	`&$caller`	—	calling object

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setValue [line 170]

void setValue(
mixed
$value)

Sets the element's value

Access: public

Overrides HTML_QuickForm_checkbox::setValue() (Sets the value of the form element)

Parameters:

mixed $value — Element's value

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setValues [line 145]

void setValues(
mixed
$values)

Sets the values used by the hidden element

Access: public

Parameters:

mixed $values — The values, either a string or an array

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toHtml [line 204]

string toHtml(
)

Returns the checkbox element in HTML and the additional hidden element in HTML

Access: public

Overrides HTML_QuickForm_checkbox::toHtml() (Returns the checkbox element in HTML)

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