Class: I2CE Form

This article desrcibes the class I2CE_Formwhich extends the class I2CE_Fuzzy It implements the following interfaces:

• Iterator

It is contained in the module forms in the package I2CE The class is defined in the file: modules/Forms/lib/I2CE_Form.php @author Luke Duncan <lduncan@intrahealth.org> @since v1.0.0 @version v2.0.0 Abstract class for objects using the {@link I2CE_Template} class that interact with a database and HTML form.

This class has a few default functions that are used when interacting with the template engine in setting up form values and displaying the data for objects that tie directly to database tables.

@package I2CE @access public @see I2CE_Template

Variables

$form_name

The name of this form for the database.

• Type: private ng $form_name

$display_name

The text name of this form for display.

• Type: private ng $display_name

$fields

The list of fields with all the information about each field.

• Type: protected y $fields

$parent

String or boolean (false) The form and id of the parent record for this form if there is one. Of the form "$form|$id"

• Type: protected mixed $parent

$id

The record id for this entry.

• Type: protected mixed $id

$children

An array of children objects for this form.

It is an array of arrays. The first being an associative array with the name of the form, the second level is a simple array of the objects.

• Type: public y $children

$attributes

A list of attributes for this form.

• Type: protected y $attributes

$parent_forms

parent_forms. The array with keys form names and values which are arrays of form names, the form names which the form's parent id can take values in

• Type: static protected y $parent_forms

Methods

__construct()

Create a new instance of a I2CE_Form object.

• Signature: public function __construct($form,$id)

Parameters:

• string $form
  The name of this form
• integer $id
  • Default Value: '0'

__get()

Return the {@link I2CE_FormField form field} value from the {@link $fields} array.

• Signature: protected function __get($key)
• Returns: mixed

Parameters:

• string $key

__isset()

Check to see if a {@link I2CE_FormField form field} value has been set.

• Signature: protected function __isset($key)
• Returns: boolean

Parameters:

• string $key

__set()

Set the {@link I2CE_FormField form field} value in the {@link $fields} array.

• Signature: protected function __set($key,$value)

Parameters:

• string $key
• mixed $value

__unset()

Unset a {@link I2CE_FormField form field}.

• Signature: protected function __unset($key)

Parameters:

• string $key

addChildForm()

Add a child form object to this forms list of children.

• Signature: public function addChildForm($child_form,$replace)

Parameters:

• I2CE_Form $child_form
  The child form
• boolean $replace
  Overwrite the child object if it already exists.
  • Default Value: false

addField()

Adds a field to this form.

• Signature: public function addField($name,$args)
• Returns: mixed I2CE_FormField or false on failure

Parameters:

• string $name
• array $args
  The arguments for this field

addFormFields()

• Signature: protected function addFormFields($data)

Parameters:

• $data

cleanup()

Clean up all the fields for this form.

This will unset all the fields associated with this form. This will remove all circular references to this form so it can be cleaned up by the garbage collector. This should only be called when the form is no longer needed. Trying to access it after this may cause unexpected results or errors.

• Signature: public function cleanup()

clearFields()

Remove fields from the form.

This is to be used when only certain fields of the form are being dealt with so the others can be removed to save processing.

• Signature: public function clearFields($fields,$keep)

Parameters:

• array $fields
  The fields being worked with.
• boolean $keep
  A flag to determine if the given fields should be removed or all except the given fields.
  • Default Value: true

current()

Return the current value for the {@link $fields} array for iterating through the form fields.

• Signature: public function current()
• Returns: mixed

displayField()

Display the field in the given node.

• Signature: public function displayField($node,$template,$args)

Parameters:

• domnode $node
• I2CE_Template $template
• array $args

form()

Return the form name for this form.

• Signature: public function form()
• Returns: string

getAllowedParentForms()

Gets the allowed parent forms for a given form

• Signature: static public function getAllowedParentForms($form,$use_cache)
• Returns: array of string, the form names.

Parameters:

• string $form
• boolean $use_cache
  Defaults to true in which case we cached result of finding parent forms
  • Default Value: true

getAttribute()

Return the attribute value for a given attribute.

• Signature: public function getAttribute($key)
• Returns: mixed

Parameters:

• string $key

getChildForms()

Get the registered child forms for this form.

• Signature: public function getChildForms()
• Returns: array The list of child form names registered for this form.

getChildFormsByForm()

Get the registered child forms for the given form.

• Signature: static public function getChildFormsByForm($form)
• Returns: array The list of child form names registered for the form.

Parameters:

• string $form
  The form to get the children of.

getChildren()

Get the added children for this form otherwise we get the popoluated children with the specified form

• Signature: public function getChildren($form)
• Returns: array If $form is null, it is an array with keys the form names and values array

of the children of that form type. If $form is set, then it is an array of the forms of type $form Parameters:

• string $form
  Defaults to null, in which case we get all children.
  • Default Value: null

getDisplayName()

Return the display name for this form object.

• Signature: public function getDisplayName()
• Returns: string

getField()

Return the I2CE_FormField for the given field name.

• Signature: public function getField($field)
• Returns: I2CE_FormField

Parameters:

• string $field
  the field name or a form name:field name

getFieldNames()

Get the names of all the fields added in this form

• Signature: public function getFieldNames()
• Returns: array of string, the field names.

getFormFieldsData()

• Signature: protected function getFormFieldsData($class,$data)

Parameters:

• $class
• &$data

getFormId()

Returns the form id for this record.

• Signature: public function getFormId()
• Returns: string of the form "$form|$id"

getHTMLName()

Return the value for the name attribute to be used for this field in a form.

• Signature: public function getHTMLName()
• Returns: string

getId()

Returns the id for this record.

• Signature: public function getId()
• Returns: string

getParent()

Return the parent id for this record.

If there isn't a parent record set then return the id for this record.

• Signature: public function getParent()
• Returns: mixed. false if there is no parent id or string a parent id of the form "$form|$id"

getParentForm()

Return the name of the parent form for this record.

If there isn't a parent record set then return the id for this record.

• Signature: public function getParentForm()
• Returns: mixed. false if there is no parent the parent form

getParentID()

Return the parent id for this record.

If there isn't a parent record set then return the id for this record.

• Signature: public function getParentID()
• Returns: mixed. false if there is no parent id or string a parent id

getQueryDisplay()

Return the values of all the fields that are set.

• Signature: public function getQueryDisplay()
• Returns: string

getQueryFields()

Return all the fields as an associative array

• Signature: public function getQueryFields()
• Returns: array

getQueryString()

Return all the fields as a query string to be sent to a URL

• Signature: public function getQueryString()
• Returns: string

hasAttribute()

Return true if a given attribute exists for this form.

• Signature: public function hasAttribute($key)
• Returns: boolean;

Parameters:

• string $key

hasInvalid()

Checks to see if any fields of form has in invalid message

• Signature: public function hasInvalid()
• Returns: boolean

key()

Return the current key for the {@link $fields} array for iterating through the form fields.

• Signature: public function key()
• Returns: mixed

listFields()

If it is as an array of two integers, it is the offset and then number of results to limit to.

• Signature: static public function listFields($form,$fields,$where_data,$ordering,$limit)
• Returns: mixed an array with key id's and value and array of values. the array of values has as keys the fields with their corresponding value.

Parameters:

• string $form
  The form name
• array $fields
  of string. The fields we want returned
• mixed $where_data
  Either I2CE_MagicDataNode or array. contains the where clause information about this form or a nested
  • Default Value: array()
• array $ordering
  An array of fields to order by. Defaults to the empty array. Prepend a - to order by in descending order.
  • Default Value: array()
• mixed $limit
  Defaults to false. It true, returns only one result. If an integer it is the numeber of records to limit to.
  • Default Value: false

load()

Load the member variables from an array

exactly one of entry in the array $post['forms'][$this->form_name], we set the values of the form's field, id and parent from that entry. If false, we set the values from $post['forms'][$this->form_name][$this->getID()] if it is present

• Signature: public function load($post,$loadID,$populate_on_set_id)

Parameters:

• array $post
  The Post vairables. Usually from an http request.
• boolean $loadID
  Defaults to true. If true, and there is
  • Default Value: true
• $populate_on_set_id
  • Default Value: true

lookupArray()

Lookup a given id in the given array.

• Signature: static protected function lookupArray($id,$arr)
• Returns: string

Parameters:

• integer $id
  The id to lookup.
• array $arr
  The array to search through.

next()

Advance the internal pointer for the {@link $fields} array for iterating through the form fields.

• Signature: public function next()

processDOM()

Process the DOM for this form.

• Signature: public function processDOM($node,$template,$method,$args)

Parameters:

• domnode $node
• I2CE_Template $template
• string $method
• array $args

removeField()

Removes a field from this form. @param array $args The arguments for this field

• Signature: public function removeField($name)

Parameters:

• string $name

reset()

Reset this object to its original state.

• Signature: public function reset()

rewind()

Rewind the internal pointer for the {@link $fields} array for iterating through the form fields.

• Signature: public function rewind()

search()

@param mixed $limit. Defaults to false. It true, returns only one result. If an integer it is the numeber of records to limit to. If it is as an array of two integers, it is the offset and then number of results to limit to.

• Signature: static public function search($form,$where_data,$ordering,$limit_one)
• Returns: mixed an array of matching form ids. However, ff $limit_one is true or 1 or

array ($offset,1) then then we return either the id or false, if none found or there was an error. Parameters:

• string $form
  The form name.
• mixed $where_data
  Either I2CE_MagicDataNode or array. contains the where clause information about this form or a nested
  • Default Value: array()
• array $ordering
  An array of fields to order by. Defaults to the empty array. Prepend a - to order by in descending order.
  • Default Value: array()
• $limit_one
  • Default Value: false

setAttribute()

Set an attribute for this form.

• Signature: public function setAttribute($key,$value)

Parameters:

• string $key
• mixed $value

setDisplayName()

Set the display name for this form object.

• Signature: final public function setDisplayName($display)

Parameters:

• string $display

setForm()

Set the form name for this form object.

• Signature: final public function setForm($name)

Parameters:

• string $name

setFromPost()

Load the member variables from an array The array can contain the keys 'id', 'parent', 'fields'. The later of which is an array indexed by field names and which contains the values of the field

• Signature: public function setFromPost($post,$populate_on_set_id)

Parameters:

• array $post
  The post object is passed as a reference
• $populate_on_set_id
  • Default Value: false

setId()

Set the id for this record.

• Signature: public function setId($id)

Parameters:

• mixed $id

setParent()

Set the parent id for this record

• Signature: public function setParent($parent,$set_id)

Parameters:

• mixed $parent
  string or I2CE_Form
• boolean $set_id
  If the parent will only have one child object then you can set the id by setting this to true.
  • Default Value: false

valid()

Check to see if the current internal pointer for the {@link $fields} array is valid.

• Signature: public function valid()
• Returns: boolean

validate()

Validate all fields that are marked as required or unique.

This will check all the fields in this form and if they're required or unique it will perform the required checks

• Signature: public function validate()

Inherited Fuzzy Methods

userMessage()

This method is inherited from I2CE_Fuzzy->userMessage()

Fuzzy Methods

isNumeric()

This method is implemented by I2CE_Module_CustomReports->isNumeric()

getLimitStyles()

This method is implemented by I2CE_Module_FormLimits->getLimitStyles()

checkLimit()

This method is implemented by I2CE_Module_FormLimits->checkLimit()

checkWhereClause()

This method is implemented by I2CE_Module_FormLimits->checkWhereClause()

createCheckFunction()

This method is implemented by I2CE_Module_FormLimits->createCheckFunction()

createCheckLimitString()

This method is implemented by I2CE_Module_FormLimits->createCheckLimitString()

generateLimit()

This method is implemented by I2CE_Module_FormLimits->generateLimit()

generateWhereClause()

This method is implemented by I2CE_Module_FormLimits->generateWhereClause()

processLimit()

This method is implemented by I2CE_Module_FormLimits->processLimit()

getDisplayedExistingLimit()

This method is implemented by I2CE_Module_FormLimits->getDisplayedExistingLimit()

isComponentized()

This method is implemented by I2CE_FormStorage->isComponentizedForm()

addChild()

This method is implemented by I2CE_FormStorage->addChild()

getChildIds()

This method is implemented by I2CE_FormStorage->getChildIds()

getStorage()

This method is implemented by I2CE_FormStorage->getStorage()

isWritable()

This method is implemented by I2CE_FormStorage->isWritable()

populate()

This method is implemented by I2CE_FormStorage->populate()

populateChild()

This method is implemented by I2CE_FormStorage->populateChild()

populateChildren()

This method is implemented by I2CE_FormStorage->populateChildren()

populateFirst()

This method is implemented by I2CE_FormStorage->populateFirst()

populateHistory()

This method is implemented by I2CE_FormStorage->populateHistory()

populateLast()

This method is implemented by I2CE_FormStorage->populateLast()

delete()

This method is implemented by I2CE_FormStorage->delete()

save()

This method is implemented by I2CE_FormStorage->save()

setChangeType()

This method is implemented by I2CE_FormStorage->setChangeType()