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.

Show class?             Show args?        

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::importValue(Page $page, Field $field, $value)
string float int array object)
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 3.0.137

Twitter updates

  • ProcessWire 3.0.142 has a lot of updates but the biggest is the addition of custom fields support for file and image fields. In this post, we take a closer look at that, and also outline all of the new features in the just-released FormBuilder v40— More
    11 October 2019
  • This week’s dev branch version brings you improvements to ProcessWire’s input->cookie API variable, plus it adds the ability to modify system URLs and paths at runtime. This post also includes some examples to demonstrate just how useful this can be— More
    20 September 2019
  • New post: This week we’ll take a look at a new version of FormBuilder that's on the way (with a screencast), as well as the latest version of the core: ProcessWire 3.0.140— More
    6 September 2019

Latest news

  • ProcessWire Weekly #284
    In the 284th issue of ProcessWire Weekly we're going to take a quick look at the latest core updates, introduce a new module called InputfieldFloatRange, and continue our ongoing poll series #processwireworks. Read on!
    Weekly.pw / 20 October 2019
  • ProcessWire 3.0.142 core updates
    This latest version of the core on the dev branch has a lot of updates, and the biggest is the addition of custom fields support for file and image fields. In this post, we take a closer look and also outline all of the new features in the just-released FormBuilder v40.
    Blog / 11 October 2019
  • Subscribe to weekly ProcessWire news

“Yesterday I sent the client a short documentation for their ProcessWire-powered website. Today all features already used with no questions. #cmsdoneright—Marc Hinse, Web designer/developer