Add a migration for FoodAmount -> IngredientAmount

database/migrations/2021_01_22_224514_convert_food_amounts_to_ingredient_amounts.php

@@ -0,0 +1,62 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+
+class ConvertFoodAmountsToIngredientAmounts extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        DB::table('ingredient_amounts')->truncate();
+        $query = "INSERT INTO ingredient_amounts (ingredient_id, ingredient_type, amount, unit, detail, weight, parent_id, parent_type, created_at, updated_at) VALUES ";
+        $foodAmounts = DB::select(DB::raw("SELECT * FROM food_amounts;"));
+        foreach ($foodAmounts as $foodAmount) {
+            $query .= sprintf("(%d, '%s', %s, %s, %s, %s, %d, '%s', '%s', '%s'),", ...[
+                $foodAmount->food_id,
+                'App\Models\Food',
+                $foodAmount->amount,
+                $foodAmount->unit ? "'{$foodAmount->unit}'" : 'null',
+                $foodAmount->detail ? "'" . addslashes($foodAmount->detail) . "'" : 'null',
+                $foodAmount->weight,
+                $foodAmount->recipe_id,
+                'App\Models\Recipe',
+                $foodAmount->created_at,
+                $foodAmount->updated_at,
+            ]);
+        }
+        $query = substr($query, 0, -1) . ';';
+        DB::unprepared($query);
+        DB::table('food_amounts')->truncate();
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        DB::table('food_amounts')->truncate();
+        $query = "INSERT INTO food_amounts (food_id, amount, unit, recipe_id, weight, created_at, updated_at, detail) VALUES ";
+        $ingredientAmounts = DB::select(DB::raw("SELECT * FROM ingredient_amounts WHERE ingredient_type = 'App\Models\Food';"));
+        foreach ($ingredientAmounts as $ingredientAmount) {
+            $query .= sprintf("(%d, %s, %s, %d, %s, '%s', '%s', %s),", ...[
+                $ingredientAmount->ingredient_id,
+                $ingredientAmount->amount,
+                $ingredientAmount->unit ? "'{$ingredientAmount->unit}'" : 'null',
+                $ingredientAmount->parent_id,
+                $ingredientAmount->weight,
+                $ingredientAmount->created_at,
+                $ingredientAmount->updated_at,
+                $ingredientAmount->detail ? "'" . addslashes($ingredientAmount->detail) . "'" : 'null',
+            ]);
+        }
+        $query = substr($query, 0, -1) . ';';
+        DB::unprepared($query);
+        DB::table('ingredient_amounts')->truncate();
+    }
+}