Fieldtype class

Fieldtype is a module type used to represent a type of field. All Fieldtype modules descend from this.

Almost all methods in a Fieldtype are primarily of concern to module developers, as Fieldtype modules do not have a public API (most of the time). Instead, they provide methods used by Page and Field objects (and related) to work with the field data. Most Fieldtype modules only need to implement a few methods like Fieldtype::sanitizeValue() (which is required) and Fieldtype::getDatabaseSchema(), as the default implementation of most other methods provided in this Fieldtype class accounts for most situations already.


Click any linked item for full usage details and examples. Hookable methods are indicated with the icon. In addition to those shown below, the Fieldtype class also inherits all the methods and properties of: WireData and Wire.

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Loading

NameReturnSummary 
Fieldtype::getBlankValue($page, Field $field)
string int object nullReturn the blank value for this fieldtype, whether that is a blank string, zero value, blank object or array 
Fieldtype::getLoadQuery(Field $field, DatabaseQuerySelect $query)
DatabaseQuerySelectReturn the query used for loading all parts of the data from this field. 
Fieldtype::getLoadQueryAutojoin(Field $field, DatabaseQuerySelect $query)
DatabaseQuerySelect nullReturn the query used for Autojoining this field (if different from getLoadQuery) or NULL if autojoin not allowed. 
Fieldtype::loadPageField(Page $page, Field $field)
mixed nullLoad the given page field from the database table and return the value.
Fieldtype::loadPageFieldFilter(Page $page, Field $field, $selector)
mixed nullLoad the given page field from the database table and return a *filtered* value.
Fieldtype::sanitizeValue(Page $page, Field $field, $value)
string int WireArray objectSanitize the value for runtime storage and return it. 
Fieldtype::wakeupValue(Page $page, Field $field, $value)
string int array objectGiven a raw value (value as stored in database), return the value as it would appear in a Page object.

Other

NameReturnSummary 
Fieldtype::cloneField(Field $field)
FieldReturn a cloned copy of $field
Fieldtype::get(string $key)
mixedGet a property from this Fieldtype’s data 
Fieldtype::getInputfield(Page $page, Field $field)
Inputfield nullReturn new instance of the Inputfield module associated with this Fieldtype. 
Fieldtype::install()
(nothing)Install this Fieldtype, consistent with optional Module interface
Fieldtype::longName string Long name of Fieldtype, which is typically the module title.  
Fieldtype::name string Name of Fieldtype module.  
Fieldtype::shortName string Short name of Fieldtype, which excludes the "Fieldtype" prefix.  
Fieldtype::uninstall()
(nothing)Uninstall this Fieldtype, consistent with optional Module interface
Fieldtype::upgrade($fromVersion, $toVersion)
(nothing)Called when module version changes

Common

NameReturnSummary 
Fieldtype::getFieldClass()
stringGet class name to use Field objects of this type (must be class that extends Field class) 
Fieldtype::importValue(Page $page, Field $field, $value)
string float int array object)
Fieldtype::isDeleteValue(Page $page, Field $field, mixed $value)
boolIs given value one that should cause the DB row(s) to be deleted rather than saved? 
Fieldtype::renamedField(Field $field, $prevName)
(nothing)

Additional methods and properties

In addition to the methods and properties above, Fieldtype also inherits the methods and properties of these classes:

API reference based on ProcessWire core version 3.0.167

Twitter updates

  • This week a 2nd new module for processing Stripe payments has been added to FormBuilder. Unlike our other Stripe Inputfield, this new one supports 3D Secure (SCA) payments. We’ll take a closer look at it in this post, plus a live demo— More
    16 October 2020
  • Quick weekly update covering this week's commits for the upcoming 3.0.167 ProcessWire core version— More
    18 September 2020
  • This week ProcessWire version 3.0.166 is released on the dev branch. In this post we’ll cover all that’s new relative to the previous version, 3.0.165. Plus we’ll check out the latest new versions of ProCache and FormBuilder— More
    11 September 2020

Latest news

  • ProcessWire Weekly #337
    In the 337th issue of ProcessWire Weekly we're going to introduce a couple of brand new third party modules, take a closer look at the latest core updates, and more. Read on!
    Weekly.pw / 24 October 2020
  • Stripe Payment Processor for FormBuilder
    This week a second new module for processing Stripe payments has been added to FormBuilder. We’ll take a closer look at it in this blog post, plus we’ve got a demo of it here too.
    Blog / 16 October 2020
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