Row edit and delete card working

app/Tables/Changeset.php

@@ -4,8 +4,11 @@
 namespace App\Tables;
 
 use App\Models\Revision;
+use App\Models\Row;
 use App\Models\Table;
 use Illuminate\Queue\SerializesModels;
+use Illuminate\Support\Collection;
+use MightyPork\Exceptions\NotExistException;
 use ReflectionClass;
 
 /**
@@ -34,7 +37,7 @@ class Changeset
     /**
      * @var string - user's note attached to this changeset (future proposal)
      */
-    public $note;
+    public $note = '';
 
     /**
      * Rows whose content changed, identified by _id.
@@ -100,9 +103,6 @@ class Changeset
      */
     public $removedColumns = [];
 
-    /** @var Column[] - loaded and transformed columns, cached from previous call to transformColumns() */
-    private $cachedColumns;
-
     private function walkProps()
     {
         $properties = (new ReflectionClass($this))->getProperties();
@@ -147,7 +147,7 @@ class Changeset
         $object = new \stdClass();
 
         foreach ($this->walkProps() as $prop) {
-            $object->$prop = array_values($this->$prop);
+            $object->$prop = $this->$prop;
         }
 
         return $object;
@@ -178,6 +178,8 @@ class Changeset
      */
     public function transformRow($row, $decorate)
     {
+        if ($row instanceof Row) $row = (object)$row->getAttributes();
+
         if ($decorate) {
             $row->_remove = false;
             $row->_changed = [];
@@ -222,16 +224,16 @@ class Changeset
      *
      * @return Column[]
      */
-    public function transformColumns()
+    public function fetchAndTransformColumns()
     {
-        if ($this->cachedColumns) return $this->cachedColumns;
+        /** @var Column[] - loaded and transformed columns, cached from previous call to transformColumns() */
+        static $cachedColumns = [];
+
+        if ($cachedColumns) return $cachedColumns;
         $columns = Column::columnsFromJson($this->revision->columns);
 
         // Modify columns
-        $byId = [];
         foreach ($columns as $column) {
-            $byId[$column->id] = $column;
-
             if (isset($this->columnUpdates[$column->id])) {
                 $column->modifyByChangeset($this->columnUpdates[$column->id]);
             }
@@ -248,16 +250,85 @@ class Changeset
         }
 
         // Reorder
+        $colsById = collect($columns)->keyBy('id')->all();
         $newOrder = [];
         foreach ($this->columnOrder as $id) {
-            $newOrder[] = $byId[$id];
+            $newOrder[] = $colsById[$id];
         }
 
-        $leftover_keys = array_diff(array_keys($byId), $this->columnOrder);
+        $leftover_keys = array_diff(array_keys($colsById), $this->columnOrder);
         foreach ($leftover_keys as $id) {
-            $newOrder[] = $byId[$id];
+            $newOrder[] = $colsById[$id];
         }
 
-        return $this->cachedColumns = $newOrder;
+        return $cachedColumns = $newOrder;
+    }
+
+    public function rowRemove(int $id)
+    {
+        $this->removedRows[] = $id;
+    }
+
+    public function rowRestore(int $id)
+    {
+        $this->removedRows = array_diff($this->removedRows, [$id]);
+    }
+
+    public function fetchAndTransformRow(int $id)
+    {
+        $r = $this->fetchRow($id);
+        $transformed = $this->transformRow($r, true);
+        return $transformed;
+    }
+
+    public function fetchColumns()
+    {
+        return Column::columnsFromJson($this->revision->columns);
+    }
+
+    public function fetchRow($id)
+    {
+        $r = $this->revision->rowsData($this->fetchColumns(), true, false)
+            ->whereRaw("data->>'_id' = ?", $id)->first();
+
+        if (! $r) throw new NotExistException("No such row _id = $id in this revision.");
+
+        // remove junk
+        unset($r->pivot_revision_id);
+        unset($r->pivot_row_id);
+
+        return (object)$r->getAttributes();
+    }
+
+    public function rowUpdate($newVals)
+    {
+        $_id = $newVals->_id;
+        $origRow = $this->fetchRow($_id);
+
+        /** @var Column[]|Collection $cols */
+        $cols = collect($this->fetchAndTransformColumns())->keyBy('id');
+
+        $updateObj = [];
+        \Debugbar::addMessage(json_encode($cols));
+        \Debugbar::addMessage(var_export($newVals, true));
+
+        foreach ($newVals as $colId => $value) {
+            if (starts_with($colId, '_')) continue; // internals
+
+            if (!isset($origRow->$colId) || $value != $origRow->$colId) {
+                $updateObj[$colId] = $cols[$colId]->cast($value);
+            }
+        }
+
+        \Debugbar::addMessage("New: ".json_encode($newVals));
+        \Debugbar::addMessage("Orig: ".json_encode($origRow));
+        \Debugbar::addMessage("UpdateObj: ".json_encode($updateObj));
+
+        if (!empty($updateObj)) {
+            $this->rowUpdates[$_id] = $updateObj;
+        } else {
+            // remove possible old update record for this row, if nothing changes now
+            unset($this->rowUpdates[$_id]);
+        }
     }
 }