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anik/laravel-backpack-extension

In the table view of backpack/crud list operation, if a column exists in database table, it's by default searchable and orderable unless instructed otherwise. Also, to add a column or field to the operation, it is required to pass an array. In PHP, array keys are case-sensitive and this make it tedious when adding a field or column. This package allows class based imperative approach over passing the array. So no more tedious, repetitive typing game matching the exact array keys. BE FORGETFUL sometimes? 🤷

Documentation

Installation

To install the package, run

composer require anik/laravel-backpack-extension

Usage

Extending controller

Instead of extending the \Backpack\CRUD\app\Http\Controllers\CrudController, use \Anik\LaravelBackpack\Extension\Controllers\CrudController in your controllers.

Adding Column

To instantiate a Column

• new \Anik\LaravelBackpack\Extension\Columns\Column(string $name, [?string $label = null])
• \Anik\LaravelBackpack\Extension\Columns\Column::create(string $name, [?string $label = null])
• \Anik\LaravelBackpack\Extension\Columns\Column::ID([?string $label = null], [?string $name = null]) - To create an ID type column

To add the column(s) from the controller

• For a single column, $this->registerColumn($column)
• For multiple columns, $this->registerColumns($columns)

By default, all Column instances are not orderable and not searchable.

Example

Available methods

• orderable() - Make the column orderable
• setOrderable(bool $orderable)
• searchable() - Make the column searchable
• setSearchLogic(bool|Closure $logic) - Make the column searchable with logic or not searchable
• setKey(string $key)
• setType(string $type) - Set column type
• setEntity(bool|string $entity)
• setAttribute(string $attribute)
• setModel(string $model)
• setPriority(int $priority)
• shouldNotEscape() - Do not escape the value in the view {!! $value !!}
• setEscaped(bool $escape)
• setValue(mixed $value)
• setLimit(int $limit)
• setDefault(mixed $default)
• setPrefix(mixed $prefix)
• setSuffix(mixed $prefix)
• setWrapper(mixed $wrapper, bool $mergeRecursive = false)
• setOptions(mixed $options, bool $mergeRecursive = false)
• isExportOnlyField()
• isNotExportOnlyField()
• shouldBeVisibleInTable()
• shouldNotBeVisibleInTable()
• shouldBeVisibleInModal()
• shouldNotBeVisibleInModal()
• isTableColumn()
• isNotTableColumn()
• setTableColumn(bool $tableColumn)
• related(Relation $relation, bool $mergeRecursive = false) - Check Relation section

Note

Column class uses \Anik\LaravelBackpack\Extension\Extensions\Attributable trait. Check Attributable section.

Adding Field

To instantiate a Field

• new \Anik\LaravelBackpack\Extension\Fields\Field(string $name, [?string $label = null])
• \Anik\LaravelBackpack\Extension\Fields\Field::create(string $name, [?string $label = null])

Or to create an OptionalField

• new \Anik\LaravelBackpack\Extension\Fields\OptionalField(string $name, [?string $label = null])
• \Anik\LaravelBackpack\Extension\Fields\OptionalField::create(string $name, [?string $label = null])

To add the field(s) from the controller

• For a single field, $this->registerField($field)
• For multiple fields, $this->registerFields($fields)

By default, all the Field instances are required.

Example

Available methods

• required() - Make field required
• optional() - Make field optional
• setType(string $type) - Set field type
• related(Relation $relation, bool $mergeRecursive = false) - Check Relation section
• setRelationType(string $type)
• setEntity(bool|string $entity)
• setAttribute(mixed $attribute)
• setModel(string $model)
• setBaseModel(string $baseModel)
• showAsterisk()
• setShowAsterisk(mixed $value)
• allowsMultiple()
• setMultiple(mixed $multiple)
• setPivot(mixed $pivot)
• setSubfields(mixed $subfields)
• setParentFieldName(mixed $value)
• setPrefix(string $prefix)
• setSuffix(string $suffix)
• setDefault(mixed $default)
• setValue(mixed $value)
• setHint(string $hint)
• setInline(mixed $inline)
• hidden() - Make hidden type field
• checkbox() - Make checkbox type field
• radio() - Make radio type field
• number() - Make number type field
• password() - Make password type field
• setPlaceholder(string $placeholder)
• isReadOnly() - Make field readonly
• isDisabled() - Make field disabled
• setClass(string $class) - Set field element css class
• setAttributes(array $attributes, bool $mergeRecursive = true) - Add additional attribute for field element
• setWrapper(mixed $value, bool $mergeRecursive = true)
• setFake(bool $fake)
• setStoresIn(string $storesIn)
• setOptions(mixed $options, bool $mergeRecursive = true)
• allowsNull()
• setAllowsNull(bool $allowNull)
• setTab(string $tab)

Note

Field class uses \Anik\LaravelBackpack\Extension\Extensions\Attributable trait. Check Attributable section.

Adding Filter

To instantiate a Filter

• new \Anik\LaravelBackpack\Extension\Filters\Filter(string $name, [?string $label = null])
• \Anik\LaravelBackpack\Extension\Filters\Filter::create(string $name, [?string $label = null])
• \Anik\LaravelBackpack\Extension\Filters\AjaxFilter::create(string $name, [?string $label = null], [?string $url = null], [?string $method = null])

To add the filters(s) from the controller

• For a single filter, $this->registerFilter($filter)
• For multiple filters, $this->registerFilters($filters)

Example

Available methods

• setType(string $type) - Set filter type
• setViewNamespace(string $namespace)
• setPlaceholder(string $placeholder)
• setValues(string|array|callable $values)
• setLogic(callable $logic)
• setFallbackLogic(callable $fallbackLogic)

Note

Filter class uses \Anik\LaravelBackpack\Extension\Extensions\Attributable trait. Check Attributable section.

Adding Widget

To instantiate a Widget

• new \Anik\LaravelBackpack\Extension\Widgets\Widget([?string $type = null], [?string $name = null], [?string $section = null])
• \Anik\LaravelBackpack\Extension\Widgets\Script::create(string $src, [?string $name = null])
• \Anik\LaravelBackpack\Extension\Widgets\Style::create(string $href, [?string $name = null])
• new \Anik\LaravelBackpack\Extension\Widgets\Hidden([?string $type = null], [?string $name = null], [?string $section = null])

To add the widget(s) from the controller

• For a single widget, $this->registerWidget($widget)
• For multiple widgets, $this->registerWidgets($widgets)

Example

Available methods

• setSection(string $section)
• setContent(mixed $content)
• setViewNamespace(string $namespace)
• shouldBeHidden()
• shouldBeFirst()

• shouldBeLast()

• Script::setSrc(string $src)

• Script::setStack(string $stack)

• Style::setRel(string $rel)
• Style::setHref(string $href)
• Style::setStack(string $stack)

Note

Widget class uses \Anik\LaravelBackpack\Extension\Extensions\Attributable trait. Check Attributable section.

Relation

If a Column or Field points to an Eloquent relationship, then you can use Anik\LaravelBackpack\Extension\Relations\Relation.

To instantiate a Relation

• new \Anik\LaravelBackpack\Extension\Relations\Relation(stirng $type, string $method, [?string $attribute = null])
• new \Anik\LaravelBackpack\Extension\Relations\CustomRelation::create(string $type, string $method, [?string $attribute = null])
• new \Anik\LaravelBackpack\Extension\Relations\BelongsTo::create(string $method, [?string $attribute = null])
• new \Anik\LaravelBackpack\Extension\Relations\HasOne::create(string $method, [?string $attribute = null])
• new \Anik\LaravelBackpack\Extension\Relations\BelongsTo::BelongsToMany(string $method, [?string $attribute = null])
• new \Anik\LaravelBackpack\Extension\Relations\HasOne::HasMany(string $method, [?string $attribute = null])

Parameters:

• $method - The method name of the relationship in the eloquent model.
• $attribute - The field/column/attribute of the related eloquent model.
• $type - Used by backpack to pick the view to show the value calculated from the relationship.

The package provides 4 relations out-of-the-box which uses the type suggested by Backpack.

• HasOne, BelongsTo - Type: select
• HasMany, BelongsToMany - Type: select_multiple

If you want a customized Relationship, you can use \Anik\LaravelBackpack\Extension\Relations\CustomRelation.

Example

Available methods

• setValueResolver(Closure $resolver) - Set a closure which will be responsible to calculate the value for field/column

Note

Only CustomRelation class uses \Anik\LaravelBackpack\Extension\Extensions\Attributable trait. Check Attributable section.

Attributable trait

The Attributable trait allows classes to save and retrieve attributes in array format. Classes that use the trait will have access to the following methods.

• addAttribute(string $key, mixed $value, bool $mergeRecursive = false)
• addAttributes(array $attributes, bool $mergeRecursive = false)
• unset(string $key)

• toArray(): array

• $mergeRecursive indicates to if merge should be done using array_merge vs array_merge_recursive.
• addAttribute, addAttributes, unset methods allows dot notation based keys when adding or unsetting values.

Example