add nova

nova/src/Fields/SupportsDependentFields.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace Laravel\Nova\Fields;
+
+trait SupportsDependentFields
+{
+    /**
+     * List of field dependencies.
+     *
+     * @var array<int, \Laravel\Nova\Fields\Dependent>
+     */
+    protected $fieldDependencies = [];
+
+    /**
+     * Register depends on to a field.
+     *
+     * @param  string|\Laravel\Nova\Fields\Field|array<int, string|\Laravel\Nova\Fields\Field>  $attributes
+     * @param  (callable(static, \Laravel\Nova\Http\Requests\NovaRequest, \Laravel\Nova\Fields\FormData):(void))|class-string  $mixin
+     * @return $this
+     */
+    public function dependsOn($attributes, $mixin)
+    {
+        array_push($this->fieldDependencies, new Dependent($attributes, $mixin));
+
+        return $this;
+    }
+
+    /**
+     * Register depends on to a field on creating request.
+     *
+     * @param  string|\Laravel\Nova\Fields\Field|array<int, string|\Laravel\Nova\Fields\Field>  $attributes
+     * @param  (callable(static, \Laravel\Nova\Http\Requests\NovaRequest, \Laravel\Nova\Fields\FormData):(void))|class-string  $mixin
+     * @return $this
+     */
+    public function dependsOnCreating($attributes, $mixin)
+    {
+        array_push($this->fieldDependencies, new Dependent($attributes, $mixin, 'create'));
+
+        return $this;
+    }
+
+    /**
+     * Register depends on to a field on updating request.
+     *
+     * @param  string|\Laravel\Nova\Fields\Field|array<int, string|\Laravel\Nova\Fields\Field>  $attributes
+     * @param  (callable(static, \Laravel\Nova\Http\Requests\NovaRequest, \Laravel\Nova\Fields\FormData):(void))|class-string  $mixin
+     * @return $this
+     */
+    public function dependsOnUpdating($attributes, $mixin)
+    {
+        array_push($this->fieldDependencies, new Dependent($attributes, $mixin, 'update'));
+
+        return $this;
+    }
+}