Class: I2CE Form

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Revision as of 12:08, 19 October 2009 by Litlfred (talk | contribs)

This article describes the class I2CE_Form.

Abstract class for objects using the 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.

Variables

$form_name

The name of this form for the database.

$display_name

The text name of this form for display.

$fields

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

$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"

$id

The record id for this entry.

$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.

$attributes

A list of attributes for this form.

  • Type: protected array $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 array $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 form field value from the $fields array.

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

__isset()

Check to see if a form field value has been set.

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

__set()

Set the form field value in the $fields array.

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

__unset()

Unset a form field.

  • Signature: protected function __unset($key)
  • Parameters:

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)
  • Parameters:
  • Returns: mixed
    I2CE_FormField or false on failure

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 $fields array for iterating through the form fields.

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

displayField()

Display the field in the given node.

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)
  • Parameters:
    • string $form
    • boolean $use_cache
      Defaults to true in which case we cached result of finding parent forms
      • Default Value: true
  • Returns: array
    of string, the form names.

getAttribute()

Return the attribute value for a given attribute.

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

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)
  • Parameters:
    • string $form
      The form to get the children of.
  • Returns: array
    The list of child form names registered for the form.

getChildren()

Get the added children for this form

  • Signature: public function getChildren($form)
  • Parameters:
    • string $form
      Defaults to null, in which case we get all children. otherwise we get the popoluated children with the specified form
      • Default Value: null
  • 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

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)
  • Parameters:
    • string $field
      the field name or a form name:field name
  • Returns: I2CE_FormField

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)
  • Parameters:
  • Returns: boolean;

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 $fields array for iterating through the form fields.

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

listFields()

  • Signature: static public function listFields($form,$fields,$where_data,$ordering,$limit)
  • 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. If it is as an array of two integers, it is the offset and then number of results to limit to.
      • Default Value: false
  • 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.

load()

Load the member variables from an array

  • 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 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
      • 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)
  • Parameters:
    • integer $id
      The id to lookup.
    • array $arr
      The array to search through.
  • Returns: string

next()

Advance the internal pointer for the $fields array for iterating through the form fields.

  • Signature: public function next()

processDOM()

Process the DOM for this form.

removeField()

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

  • Signature: public function removeField($name)
  • Parameters:

reset()

Reset this object to its original state.

  • Signature: public function reset()

rewind()

Rewind the internal pointer for the $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)
  • 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
  • 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.

setAttribute()

Set an attribute for this form.

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

setDisplayName()

Set the display name for this form object.

  • Signature: final public function setDisplayName($display)
  • Parameters:

setForm()

Set the form name for this form object.

  • Signature: final public function setForm($name)
  • Parameters:

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:

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 $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()

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()

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