Create initial DataTable form widget

modules/backend/formwidgets/DataTable.php

@@ -0,0 +1,137 @@
+<?php namespace Backend\FormWidgets;
+
+use Lang;
+use Backend\Widgets\Table;
+use Backend\Classes\FormWidgetBase;
+use System\Classes\ApplicationException;
+
+/**
+ * Data Table
+ * Renders a table field.
+ *
+ * @package october\backend
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class DataTable extends FormWidgetBase
+{
+    /**
+     * {@inheritDoc}
+     */
+    public $defaultAlias = 'datatable';
+
+    /**
+     * @var string Table size
+     */
+    protected $size = 'large';
+
+    /**
+     * @var Backend\Widgets\Table Table widget
+     */
+    protected $table;
+
+    /**
+     * {@inheritDoc}
+     */
+    public function init()
+    {
+        $this->size = $this->getConfig('size', $this->size);
+        $this->table = $this->makeTableWidget();
+        $this->table->bindToController();
+    }
+
+    /**
+     * @return Backend\Widgets\Table   The table to be displayed.
+     */
+    public function getTable()
+    {
+        return $this->table;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function render()
+    {
+        $this->prepareVars();
+        return $this->makePartial('datatable');
+    }
+
+    /**
+     * Prepares the list data
+     */
+    public function prepareVars()
+    {
+        $this->populateTableWidget();
+        $this->vars['table'] = $this->table;
+        $this->vars['size'] = $this->size;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getSaveData($value)
+    {
+        $dataSource = $this->table->getDataSource();
+
+        $result = [];
+        while ($records = $dataSource->readRecords()) {
+            $result += $records;
+        }
+
+        return $result;
+    }
+
+    /*
+     * Populate data
+     */
+    protected function populateTableWidget()
+    {
+        $dataSource = $this->table->getDataSource();
+        $records = $this->getLoadData() ?: [];
+        traceLog($records);
+        $dataSource->initRecords((array) $records);
+    }
+
+    protected function makeTableWidget()
+    {
+        $config = $this->makeConfig((array) $this->config);
+        $config->dataSource = 'client';
+        $config->alias = $this->alias . 'Table';
+
+        $table = new Table($this->controller, $config);
+
+        $table->bindEvent('table.getDropdownOptions', [$this, 'getDataTableOptions']);
+
+        return $table;
+    }
+
+    /**
+     * Looks at the model for getXXXDataTableOptions or getDataTableOptions methods
+     * to obtain values for autocomplete field types.
+     * @param  string $field Table field name
+     * @param  string $data  Data for the entire table
+     * @return array
+     */
+    public function getDataTableOptions($field, $data)
+    {
+        $methodName = 'get'.studly_case($this->fieldName).'DataTableOptions';
+
+        if (!$this->model->methodExists($methodName) && !$this->model->methodExists('getDataTableOptions')) {
+            throw new ApplicationException(Lang::get('backend::lang.model.missing_method', ['class' => get_class($this->model), 'method' => 'getDataTableOptions']));
+        }
+
+        if ($this->model->methodExists($methodName)) {
+            $result = $this->model->$methodName($field, $data);
+        }
+        else {
+            $result = $this->model->getDataTableOptions($this->fieldName, $field, $data);
+        }
+
+        if (!is_array($result)) {
+            $result = [];
+        }
+
+        return $result;
+    }
+
+}

modules/backend/formwidgets/datatable/partials/_datatable.htm

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+<div
+    id="<?= $this->getId() ?>"
+    class="field-datatable size-<?= $size ?>">
+
+    <?= $table->render() ?>
+
+</div>
+