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AltField

Type
Class
Namespace
craft\fieldlayoutelements\assets
Inherits
craft\fieldlayoutelements\assets\AltField » craft\fieldlayoutelements\TextareaField » craft\fieldlayoutelements\BaseNativeField » craft\fieldlayoutelements\BaseField » craft\base\FieldLayoutElement » craft\base\FieldLayoutComponent » craft\base\Model » yii\base\Model » yii\base\Component » yii\base\BaseObject
Implements
ArrayAccess, IteratorAggregate, craft\base\ModelInterface, yii\base\Arrayable, yii\base\Configurable, yii\base\StaticInstanceInterface
Uses traits
craft\base\ClonefixTrait, yii\base\ArrayableTrait, yii\base\StaticInstanceTrait
Since
4.0.0

AltField represents an Alternative Text field that can be included within a volume’s field layout designer.

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Public Properties

PropertyDescription
activeValidatorsyii\validators\Validator – The validators applicable to the current scenario.
attributestring – The element attribute this field is for.
attributesarray – Attribute values (name => value).
autofocusboolean – Whether the input should get an autofocus attribute.
behaviorsyii\base\Behavior – List of behaviors attached to this component.
classstring, string[], null – The input’s class attribute value.
colsinteger, null – The input’s cols attribute value.
containerAttributesarray – HTML attributes for the field container
disabledboolean – Whether the input should get a disabled attribute.
elementConditioncraft\elements\conditions\ElementConditionInterface, null – The element condition for this layout element
elementTypestring, null – The element type the field layout is for
errorsarray – Errors for all attributes or the specified attribute.
firstErrorsarray – The first errors.
idstring, null – The input’s id attribute value.
includeInCardsboolean – Whether this field’s contents should be included in element cards.
inputContainerAttributesarray – HTML attributes for the input container
instructionsstring, null – The field’s instructions
iteratorArrayIterator – An iterator for traversing the items in the list.
labelstring, null – The field’s label
labelAttributesarray – HTML attributes for the field label
layoutcraft\models\FieldLayout – The layout this element belongs to
mandatoryboolean – Whether the field must be present within the layout.
maxlengthinteger, null – The input’s maxlength attribute value.
namestring, null – The input’s name attribute value.
orientationstring, null – The field’s orientation (ltr or rtl)
placeholderstring, null – The input’s placeholder attribute value.
providesThumbsboolean – Whether this field should be used to define element thumbnails.
readonlyboolean – Whether the input should get a readonly attribute.
requirableboolean – Whether the field can optionally be marked as required.
requiredboolean – Whether the field is required.
rowsinteger, null – The input’s rows attribute value.
scenariostring – The scenario that this model is in.
settingsHtmlstring
tipstring, null – The field’s tip text
titlestring, null – The input’s title attribute value.
translatableboolean – Whether the field is translatable
uidstring, null – The UUID of the layout element.
userConditioncraft\elements\conditions\users\UserCondition, null – The user condition for this layout element
validatorsArrayObject, yii\validators\Validator – All the validators declared in the model.
warningstring, null – The field’s warning text
widthinteger – The width (%) of the field

attribute

Type
string
Default value
'alt'

The element attribute this field is for.

View source

requirable

Type
boolean
Default value
true

Whether the field can optionally be marked as required.

View source

Public Methods

MethodDescription
__call()Calls the named method which is not a class method.
__clone()This method is called after the object is created by cloning an existing one.
__construct()
__get()Returns the value of a component property.
__isset()Checks if a property is set, i.e. defined and not null.
__set()Sets the value of a component property.
__unset()Sets a component property to be null.
activeAttributes()Returns the attribute names that are subject to validation in the current scenario.
addError()Adds a new error to the specified attribute.
addErrors()Adds a list of errors.
addModelErrors()Adds errors from another model, with a given attribute name prefix.
afterValidate()This method is invoked after validation ends.
attachBehavior()Attaches a behavior to this component.
attachBehaviors()Attaches a list of behaviors to the component.
attribute()Returns the element attribute this field is for.
attributeHints()Returns the attribute hints.
attributeLabels()Returns the attribute labels.
attributes()Returns the list of attribute names.
beforeValidate()This method is invoked before validation starts.
behaviors()Returns a list of behaviors that this component should behave as.
canGetProperty()Returns a value indicating whether a property can be read.
canSetProperty()Returns a value indicating whether a property can be set.
className()Returns the fully qualified name of this class.
clearErrors()Removes errors for all attributes or a single attribute.
createValidators()Creates validator objects based on the validation rules specified in rules().
datetimeAttributes()Returns the names of any attributes that should hold DateTime values.
defaultLabel()Returns the field’s default label, which will be used if label() is null.
detachBehavior()Detaches a behavior from the component.
detachBehaviors()Detaches all behaviors from the component.
ensureBehaviors()Makes sure that the behaviors declared in behaviors() are attached to this component.
extraFields()Returns the list of fields that can be expanded further and returned by toArray().
fields()Returns the list of fields that should be returned by default by toArray() when no specific fields are specified.
formHtml()Returns the element’s form HTMl.
formName()Returns the form name that this model class should use.
generateAttributeLabel()Generates a user friendly attribute label based on the give attribute name.
getActiveValidators()Returns the validators applicable to the current scenario.
getAttributeHint()Returns the text hint for the specified attribute.
getAttributeLabel()Returns the text label for the specified attribute.
getAttributes()Returns attribute values.
getBehavior()Returns the named behavior object.
getBehaviors()Returns all behaviors attached to this component.
getElementCondition()Returns the element condition for this layout element.
getErrorSummary()Returns the errors for all attributes as a one-dimensional array.
getErrors()Returns the errors for all attributes or a single attribute.
getFirstError()Returns the first error of the specified attribute.
getFirstErrors()Returns the first error of every attribute in the model.
getIterator()Returns an iterator for traversing the attributes in the model.
getLayout()Returns the layout this element belongs to.
getScenario()Returns the scenario that this model is used in.
getSettingsHtml()Returns the settings HTML for the layout element.
getUserCondition()Returns the user condition for this layout element.
getValidators()Returns all the validators declared in rules().
hasConditions()Returns whether this element has any conditions.
hasCustomWidth()Returns whether the element can have a custom width.
hasErrors()Returns a value indicating whether there is any validation error.
hasEventHandlers()Returns a value indicating whether there is any handler attached to the named event.
hasMethod()Returns a value indicating whether a method is defined.
hasProperty()Returns a value indicating whether a property is defined for this component.
hasSettings()Returns whether the layout element has settings.
init()Initializes the object.
instance()Returns static class instance, which can be used to obtain meta information.
isAttributeActive()Returns a value indicating whether the attribute is active in the current scenario.
isAttributeRequired()Returns a value indicating whether the attribute is required.
isAttributeSafe()Returns a value indicating whether the attribute is safe for massive assignments.
isMultiInstance()Returns whether the element can be included multiple times.
keywords()Returns the search keywords for this layout element.
label()Returns the field’s label.
load()Populates the model with input data.
loadMultiple()Populates a set of models with the data from end user.
mandatory()Returns whether the field must be present within the layout.
off()Detaches an existing event handler from this component.
offsetExists()Returns whether there is an element at the specified offset.
offsetGet()Returns the element at the specified offset.
offsetSet()Sets the element at the specified offset.
offsetUnset()Sets the element value at the specified offset to null.
on()Attaches an event handler to an event.
onUnsafeAttribute()This method is invoked when an unsafe attribute is being massively assigned.
previewHtml()Returns the field’s preview HTMl.
previewable()Returns whether the field can be included in element cards.
requirable()Returns whether the field can optionally be marked as required.
rules()Returns the validation rules for attributes.
safeAttributes()Returns the attribute names that are safe to be massively assigned in the current scenario.
scenarios()Returns a list of scenarios and the corresponding active attributes.
selectorHtml()Returns the selector HTML that should be displayed within field layout designers.
setAttributes()Sets the attribute values in a massive way.
setElementCondition()Sets the element condition for this layout element.
setLayout()Sets the layout this element belongs to.
setScenario()Sets the scenario for the model.
setUserCondition()Sets the user condition for this layout element.
showAttribute()Returns whether the attribute should be shown for admin users with “Show field handles in edit forms” enabled.
showInForm()Returns whether the layout element should be shown in an edit form for the given element.
thumbHtml()Returns the HTML for an element’s thumbnail.
thumbable()Returns whether the field can be chosen as elements’ thumbnail provider.
toArray()Converts the model into an array.
trigger()Triggers an event.
validate()Performs the data validation.
validateMultiple()Validates multiple models.

__construct()

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Arguments

  • $config

defaultLabel()

Returns the field’s default label, which will be used if label() is null.

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Arguments

Returns

string, null

fields()

Returns the list of fields that should be returned by default by toArray() when no specific fields are specified.

A field is a named element in the returned array by toArray().

This method should return an array of field names or field definitions. If the former, the field name will be treated as an object property name whose value will be used as the field value. If the latter, the array key should be the field name while the array value should be the corresponding field definition which can be either an object property name or a PHP callable returning the corresponding field value. The signature of the callable should be:

php
function ($model, $field) {
    // return field value
}

For example, the following code declares four fields:

  • email: the field name is the same as the property name email;
  • firstName and lastName: the field names are firstName and lastName, and their values are obtained from the first_name and last_name properties;
  • fullName: the field name is fullName. Its value is obtained by concatenating first_name and last_name.
php
return [
    'email',
    'firstName' => 'first_name',
    'lastName' => 'last_name',
    'fullName' => function () {
        return $this->first_name . ' ' . $this->last_name;
    },
];

In this method, you may also want to return different lists of fields based on some context information. For example, depending on the privilege of the current application user, you may return different sets of visible fields or filter out some fields.

The default implementation of this method returns the public object member variables indexed by themselves.

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Returns

array – The list of field names or field definitions.

previewHtml()

Returns the field’s preview HTMl.

View source

Arguments

Returns

string

previewable()

Since
5.0.0

Returns whether the field can be included in element cards.

View source

Returns

boolean

Protected Methods

MethodDescription
baseInputName()Returns the base input name for the field (sans namespace).
conditional()Returns whether this element can be conditional.
containerAttributes()Returns the element container HTML attributes.
defaultInstructions()Returns the field’s default instructions, which will be used if instructions() is null.
defineBehaviors()Returns the behaviors to attach to this class.
defineRules()Returns the validation rules for attributes.
describedBy()Returns the aria-describedby attribute value that should be set on the focusable input(s).
errorKey()Returns the error key this field should be associated with.
errors()Returns the field’s validation errors.
errorsId()Returns the id of the field errors.
extractFieldsFor()Extract nested fields from a fields collection for a given root field Nested fields are separated with dots (.). e.g: "item.id" The previous example would extract "id".
extractRootFields()Extracts the root field names from nested fields.
id()Returns the id of the input.
inputContainerAttributes()Returns input container HTML attributes.
inputHtml()Returns the field’s input HTML.
inputTemplateVariables()Returns the variables that should be passed to the _includes/forms/textarea.twig template.
instructions()Returns the field’s instructions.
instructionsId()Returns the id of the field instructions.
labelAttributes()Returns label HTML attributes.
labelId()Returns the id of the field label.
orientation()Returns the field’s orientation (ltr or rtl).
resolveFields()Determines which fields can be returned by toArray().
selectorAttributes()Returns HTML attributes that should be added to the selector container.
selectorIcon()Returns the selector’s SVG icon.
selectorIndicators()Returns the indicators that should be shown within the selector.
selectorInnerHtml()Returns the selector’s inner HTML.
selectorLabel()Returns the selector label.
settingsHtml()Returns the settings HTML for the layout element.
showLabel()Returns whether the label should be shown in form inputs.
statusClass()Returns the field’s status class.
statusId()Returns the id if the field status message.
statusLabel()Returns the field’s status label.
tip()Returns the field’s tip text.
tipId()Returns the id of the field tip.
translatable()Returns whether the field is translatable.
translationDescription()Returns the descriptive text for how this field is translatable.
useFieldset()Returns whether the element’s form HTML should use a <fieldset> + <legend> instead of a <div> + <label>.
value()Returns the field’s value.
warning()Returns the field’s warning text.
warningId()Returns the id of the field warning.

inputTemplateVariables()

Since
4.9.5

Returns the variables that should be passed to the _includes/forms/textarea.twig template.

View source

Arguments

Returns

array

translatable()

Returns whether the field is translatable.

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Arguments

Returns

boolean

translationDescription()

Returns the descriptive text for how this field is translatable.

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Arguments

Returns

string, null

Constants

ConstantDescription
SCENARIO_DEFAULTThe name of the default scenario.