add nova

nova/src/Fields/KeyValue.php

@@ -0,0 +1,214 @@
+<?php
+
+namespace Laravel\Nova\Fields;
+
+use Illuminate\Support\Str;
+use Laravel\Nova\Http\Requests\NovaRequest;
+use Laravel\Nova\Nova;
+
+class KeyValue extends Field
+{
+    use SupportsDependentFields;
+
+    /**
+     * The field's component.
+     *
+     * @var string
+     */
+    public $component = 'key-value-field';
+
+    public function resolve($resource, $attribute = null)
+    {
+        parent::resolve($resource, $attribute);
+
+        if ($this->value === '{}') {
+            $this->value = null;
+        }
+    }
+
+    /**
+     * Indicates if the element should be shown on the index view.
+     *
+     * @var bool
+     */
+    public $showOnIndex = false;
+
+    /**
+     * The label that should be used for the key heading.
+     *
+     * @var string|null
+     */
+    public $keyLabel;
+
+    /**
+     * The label that should be used for the value heading.
+     *
+     * @var string|null
+     */
+    public $valueLabel;
+
+    /**
+     * The label that should be used for the "add row" button.
+     *
+     * @var string|null
+     */
+    public $actionText;
+
+    /**
+     * The callback used to determine if the keys are readonly.
+     *
+     * @var (callable(\Laravel\Nova\Http\Requests\NovaRequest):(bool))|bool|null
+     */
+    public $readonlyKeysCallback;
+
+    /**
+     * Determine if new rows are able to be added.
+     *
+     * @var bool
+     */
+    public $canAddRow = true;
+
+    /**
+     * Determine if rows are able to be deleted.
+     *
+     * @var bool
+     */
+    public $canDeleteRow = true;
+
+    /**
+     * Hydrate the given attribute on the model based on the incoming request.
+     *
+     * @param  \Laravel\Nova\Http\Requests\NovaRequest  $request
+     * @param  string  $requestAttribute
+     * @param  \Illuminate\Database\Eloquent\Model|\Laravel\Nova\Support\Fluent  $model
+     * @param  string  $attribute
+     * @return void
+     */
+    protected function fillAttributeFromRequest(NovaRequest $request, $requestAttribute, $model, $attribute)
+    {
+        if ($request->exists($requestAttribute)) {
+            // The value for KeyValue fields are serialized on the front-end using `JSON.stringify`,
+            // so we need to convert it to an associative array before saving it to the database.
+            $this->fillModelWithData($model, json_decode($request[$requestAttribute], true), $attribute);
+        }
+    }
+
+    /**
+     * Fill the model's attribute with data.
+     *
+     * @param  \Illuminate\Database\Eloquent\Model|\Laravel\Nova\Support\Fluent  $model
+     * @param  mixed  $value
+     * @param  string  $attribute
+     * @return void
+     */
+    public function fillModelWithData($model, $value, string $attribute)
+    {
+        $model->forceFill([Str::replace('.', '->', $attribute) => $value]);
+    }
+
+    /**
+     * The label that should be used for the key table heading.
+     *
+     * @param  string  $label
+     * @return $this
+     */
+    public function keyLabel($label)
+    {
+        $this->keyLabel = $label;
+
+        return $this;
+    }
+
+    /**
+     * The label that should be used for the value table heading.
+     *
+     * @param  string  $label
+     * @return $this
+     */
+    public function valueLabel($label)
+    {
+        $this->valueLabel = $label;
+
+        return $this;
+    }
+
+    /**
+     * The label that should be used for the add row button.
+     *
+     * @param  string  $label
+     * @return $this
+     */
+    public function actionText($label)
+    {
+        $this->actionText = $label;
+
+        return $this;
+    }
+
+    /**
+     * Set the callback used to determine if the keys are readonly.
+     *
+     * @param  (callable(\Laravel\Nova\Http\Requests\NovaRequest):(bool))|bool  $callback
+     * @return $this
+     */
+    public function disableEditingKeys($callback = true)
+    {
+        $this->readonlyKeysCallback = $callback;
+
+        return $this;
+    }
+
+    /**
+     * Determine if the keys are readonly.
+     *
+     * @param  \Laravel\Nova\Http\Requests\NovaRequest  $request
+     * @return bool
+     */
+    public function readonlyKeys(NovaRequest $request)
+    {
+        return with($this->readonlyKeysCallback, function ($callback) use ($request) {
+            return is_callable($callback) ? call_user_func($callback, $request) : ($callback === true);
+        });
+    }
+
+    /**
+     * Disable adding new rows.
+     *
+     * @return $this
+     */
+    public function disableAddingRows()
+    {
+        $this->canAddRow = false;
+
+        return $this;
+    }
+
+    /**
+     * Disable deleting rows.
+     *
+     * @return $this
+     */
+    public function disableDeletingRows()
+    {
+        $this->canDeleteRow = false;
+
+        return $this;
+    }
+
+    /**
+     * Prepare the field element for JSON serialization.
+     *
+     * @return array<string, mixed>
+     */
+    public function jsonSerialize(): array
+    {
+        return array_merge(parent::jsonSerialize(), [
+            'keyLabel' => $this->keyLabel ?? Nova::__('Key'),
+            'valueLabel' => $this->valueLabel ?? Nova::__('Value'),
+            'actionText' => $this->actionText ?? Nova::__('Add row'),
+            'readonlyKeys' => $this->readonlyKeys(app(NovaRequest::class)),
+            'canAddRow' => $this->canAddRow,
+            'canDeleteRow' => $this->canDeleteRow,
+        ]);
+    }
+}