Introduction
The repeater component allows you to output a JSON array of repeated form components.JSON column in your database. Additionally, if you’re using Eloquent, make sure that column has an array cast.
As evident in the above example, the component schema can be defined within the schema() method of the component:
Setting empty default items
Repeaters may have a certain number of empty items created by default. The default is only used when a schema is loaded with no data. In a standard panel resource, defaults are used on the Create page, not the Edit page. To use default items, pass the number of items to thedefaultItems() method:
Adding items
An action button is displayed below the repeater to allow the user to add a new item.Setting the add action button’s label
You may set a label to customize the text that should be displayed in the button for adding a repeater item, using theaddActionLabel() method:
Aligning the add action button
By default, the add action is aligned in the center. You may adjust this using theaddActionAlignment() method, passing an Alignment option of Alignment::Start or Alignment::End:
Preventing the user from adding items
You may prevent the user from adding items to the repeater using theaddable(false) method:
Deleting items
An action button is displayed on each item to allow the user to delete it.Preventing the user from deleting items
You may prevent the user from deleting items from the repeater using thedeletable(false) method:
Reordering items
A button is displayed on each item to allow the user to drag and drop to reorder it in the list.Preventing the user from reordering items
You may prevent the user from reordering items from the repeater using thereorderable(false) method:
Reordering items with buttons
You may use thereorderableWithButtons() method to enable reordering items with buttons to move the item up and down:
Preventing reordering with drag and drop
You may use thereorderableWithDragAndDrop(false) method to prevent items from being ordered with drag and drop:
Collapsing items
The repeater may becollapsible() to optionally hide content in long forms:
collapsible() and collapsed() methods accept a boolean value to control if the repeater should be collapsible and collapsed or not:
Cloning items
You may allow repeater items to be duplicated using thecloneable() method:
cloneable() method accepts a boolean value to control if the repeater should be cloneable or not:
Integrating with an Eloquent relationship
You may employ therelationship() method of the Repeater to configure a HasMany relationship. Filament will load the item data from the relationship, and save it back to the relationship when the form is submitted. If a custom relationship name is not passed to relationship(), Filament will use the field name as the relationship name:
Reordering items in a relationship
By default, reordering relationship repeater items is disabled. This is because your related model needs asort column to store the order of related records. To enable reordering, you may use the orderColumn() method, passing in a name of the column on your related model to store the order in:
spatie/eloquent-sortable with an order column such as order_column, you may pass this in to orderColumn():
Integrating with a BelongsToMany Eloquent relationship
There is a common misconception that using a BelongsToMany relationship with a repeater is as simple as using a HasMany relationship. This is not the case, as a BelongsToMany relationship requires a pivot table to store the relationship data. The repeater saves its data to the related model, not the pivot table. Therefore, if you want to map each repeater item to a row in the pivot table, you must use a HasMany relationship with a pivot model to use a repeater with a BelongsToMany relationship.
Imagine you have a form to create a new Order model. Each order belongs to many Product models, and each product belongs to many orders. You have a order_product pivot table to store the relationship data. Instead of using the products relationship with the repeater, you should create a new relationship called orderProducts on the Order model, and use that with the repeater:
OrderProduct pivot model, you should create that, with inverse relationships to Order and Product:
Please ensure that your pivot model has a primary key column, like
id, to allow Filament to keep track of which repeater items have been created, updated and deleted. To make sure that Filament keeps track of the primary key, the pivot model needs to have the $incrementing property set to true.orderProducts relationship with the repeater, and it will save the data to the order_product pivot table:
Mutating related item data before filling the field
You may mutate the data for a related item before it is filled into the field using themutateRelationshipDataBeforeFillUsing() method. This method accepts a closure that receives the current item’s data in a $data variable. You must return the modified array of data:
Mutating related item data before creating
You may mutate the data for a new related item before it is created in the database using themutateRelationshipDataBeforeCreateUsing() method. This method accepts a closure that receives the current item’s data in a $data variable. You can choose to return either the modified array of data, or null to prevent the item from being created:
Mutating related item data before saving
You may mutate the data for an existing related item before it is saved in the database using themutateRelationshipDataBeforeSaveUsing() method. This method accepts a closure that receives the current item’s data in a $data variable. You can choose to return either the modified array of data, or null to prevent the item from being saved:
Modifying related records after retrieval
You may filter or modify the related records of a repeater after they are retrieved from the database using themodifyRecordsUsing argument. This method accepts a function that receives a Collection of related records. You should return the modified collection.
This can be particularly useful to restrict records to a specific group or category without doing this in the database query itself, which would trigger an extra query if the records are already eager loaded:
Grid layout
You may organize repeater items into columns by using thegrid() method:
columns() method of the grid. This allows you to responsively customize the number of grid columns at various breakpoints.
Adding a label to repeater items based on their content
You may add a label for repeater items using theitemLabel() method. This method accepts a closure that receives the current item’s data in a $state variable. You must return a string to be used as the item label:
Numbering repeater items
You can add the repeater item’s number next to its label using theitemNumbers() method:
Simple repeaters with one field
You can use thesimple() method to create a repeater with a single field, using a minimal design
Using $get() to access parent field values
All form components are able to use $get() and $set() to access another field’s value. However, you might experience unexpected behavior when using this inside the repeater’s schema.
This is because $get() and $set(), by default, are scoped to the current repeater item. This means that you are able to interact with another field inside that repeater item easily without knowing which repeater item the current form component belongs to.
The consequence of this is that you may be confused when you are unable to interact with a field outside the repeater. We use ../ syntax to solve this problem - $get('../parent_field_name').
Consider your form has this data structure:
client_id from inside the repeater item.
$get() is relative to the current repeater item, so $get('client_id') is looking for $get('repeater.item1.client_id').
You can use ../ to go up a level in the data structure, so $get('../client_id') is $get('repeater.client_id') and $get('../../client_id') is $get('client_id').
The special case of $get() with no arguments, or $get('') or $get('./'), will always return the full data array for the current repeater item.
Table repeaters
You can present repeater items in a table format using thetable() method, which accepts an array of TableColumn objects. These objects represent the columns of the table, which correspond to any components in the schema of the repeater:
TableColumn::make() method. If you want to provide an accessible label for a column but do not wish to display it, you can use the hiddenHeaderLabel() method:
markAsRequired() method:
wrapHeader() method:
alignment() method, passing an Alignment option of Alignment::Start, Alignment::Center, or Alignment::End:
width() method, passing a string value that represents the width of the column. This value is passed directly to the style attribute of the column header:
Compact table repeaters
You can make table repeaters more compact by using thecompact() method, to fit more data in a smaller space:
Repeater validation
As well as all rules listed on the validation page, there are additional rules that are specific to repeaters.Number of items validation
You can validate the minimum and maximum number of items that you can have in a repeater by setting theminItems() and maxItems() methods:
Distinct state validation
In many cases, you will want to ensure some sort of uniqueness between repeater items. A couple of common examples could be:- Ensuring that only one checkbox or toggle is activated at once across items in the repeater.
- Ensuring that an option may only be selected once across select, radio, checkbox list, or toggle buttons fields in a repeater.
distinct() method to validate that the state of a field is unique across all items in the repeater:
distinct() validation depends on the data type that the field handles
- If the field returns a boolean, like a checkbox or toggle, the validation will ensure that only one item has a value of
true. There may be many fields in the repeater that have a value offalse. - Otherwise, for fields like a select, radio, checkbox list, or toggle buttons, the validation will ensure that each option may only be selected once across all items in the repeater.
distinct() method to control if the field should be distinct or not:
Automatically fixing indistinct state
If you’d like to automatically fix indistinct state, you can use thefixIndistinctState() method:
distinct() and live() methods on the field.
Depending on the data type that the field handles, the behavior of the fixIndistinctState() adapts:
- If the field returns a boolean, like a checkbox or toggle, and one of the fields is enabled, Filament will automatically disable all other enabled fields on behalf of the user.
- Otherwise, for fields like a select, radio, checkbox list, or toggle buttons, when a user selects an option, Filament will automatically deselect all other usages of that option on behalf of the user.
fixIndistinctState() method to control if the field should fix indistinct state or not:
Disabling options when they are already selected in another item
If you’d like to disable options in a select, radio, checkbox list, or toggle buttons when they are already selected in another item, you can use thedisableOptionsWhenSelectedInSiblingRepeaterItems() method:
distinct() and live() methods on the field.
Customizing the repeater item actions
This field uses action objects for easy customization of buttons within it. You can customize these buttons by passing a function to an action registration method. The function has access to the$action object, which you can use to customize it. The following methods are available to customize the actions:
addAction()cloneAction()collapseAction()collapseAllAction()deleteAction()expandAction()expandAllAction()moveDownAction()moveUpAction()reorderAction()
Confirming repeater actions with a modal
You can confirm actions with a modal by using therequiresConfirmation() method on the action object. You may use any modal customization method to change its content and behavior:
The
collapseAction(), collapseAllAction(), expandAction(), expandAllAction() and reorderAction() methods do not support confirmation modals, as clicking their buttons does not make the network request that is required to show the modal.Adding extra item actions to a repeater
You may add new action buttons to the header of each repeater item by passingAction objects into extraItemActions():
$arguments['item'] gives you the ID of the current repeater item. You can validate the data in that repeater item using the getItemState() method on the repeater component. This method returns the validated data for the item. If the item is not valid, it will cancel the action and show an error message for that item in the form.
If you want to get the raw data from the current item without validating it, you can use $component->getRawItemState($arguments['item']) instead.
If you want to manipulate the raw data for the entire repeater, for example, to add, remove or modify items, you can use $component->getState() to get the data, and $component->state($state) to set it again: