root
120 lines
5.3 KiB
PHP
120 lines
5.3 KiB
PHP
<?php
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namespace App\Database\Migrations;
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use CodeIgniter\Database\Migration;
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class CreateInventoryTables extends Migration
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{
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public function up()
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{
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// --------- inventory_categories ----------
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$this->forge->addField([
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'id' => ['type' => 'INT', 'unsigned' => true, 'auto_increment' => true],
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'type' => ['type' => 'ENUM("classroom","book","office","kitchen")', 'null' => false, 'default' => 'office'],
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'name' => ['type' => 'VARCHAR', 'constraint' => 120, 'null' => false],
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'description' => ['type' => 'TEXT', 'null' => true],
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'created_at' => ['type' => 'DATETIME', 'null' => true],
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'updated_at' => ['type' => 'DATETIME', 'null' => true],
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]);
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$this->forge->addKey('id', true);
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$this->forge->addUniqueKey(['type', 'name']); // unique per type
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$this->forge->createTable('inventory_categories', true, [
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'ENGINE' => 'InnoDB',
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]);
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// --------- inventory_items ----------
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$this->forge->addField([
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'id' => ['type' => 'INT', 'unsigned' => true, 'auto_increment' => true],
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'type' => ['type' => 'ENUM("classroom","book","office","kitchen")', 'null' => false],
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'category_id' => ['type' => 'INT', 'unsigned' => true, 'null' => true],
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'name' => ['type' => 'VARCHAR', 'constraint' => 190, 'null' => false],
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'description' => ['type' => 'TEXT', 'null' => true],
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'quantity' => ['type' => 'INT', 'unsigned' => true, 'default' => 0],
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'unit' => ['type' => 'VARCHAR', 'constraint' => 32, 'null' => true, 'default' => null],
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// Classroom-only condition
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'condition' => ['type' => 'ENUM("good","needs_repair","need_replace","cannot_find")', 'null' => true, 'default' => null],
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// Book extras (author removed earlier)
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'isbn' => ['type' => 'VARCHAR', 'constraint' => 32, 'null' => true],
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'edition' => ['type' => 'VARCHAR', 'constraint' => 32, 'null' => true],
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// Misc
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'sku' => ['type' => 'VARCHAR', 'constraint' => 64, 'null' => true],
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'notes' => ['type' => 'TEXT', 'null' => true],
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// Academic tagging
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'semester' => ['type' => 'ENUM("Spring","Fall")', 'null' => true],
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'school_year' => ['type' => 'VARCHAR', 'constraint' => 16, 'null' => true], // e.g. 2025-2026
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// Audit
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'updated_by' => ['type' => 'INT', 'unsigned' => true, 'null' => true],
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'created_at' => ['type' => 'DATETIME', 'null' => true],
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'updated_at' => ['type' => 'DATETIME', 'null' => true],
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]);
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// Indexes
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$this->forge->addKey('id', true);
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$this->forge->addKey(['type', 'name']);
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$this->forge->addKey(['school_year', 'semester']);
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$this->forge->addKey('category_id'); // ensure indexed for FK
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$this->forge->addKey('updated_by'); // ensure indexed for FK
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// Category FK (safe; category table we just created with InnoDB)
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$this->forge->addForeignKey('category_id', 'inventory_categories', 'id', 'SET NULL', 'CASCADE');
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// Create items table first, then add users FK conditionally
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$this->forge->createTable('inventory_items', true, [
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'ENGINE' => 'InnoDB',
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]);
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// ---- Add updated_by → users(id) FK conditionally & safely ----
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$db = \Config\Database::connect();
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if ($db->tableExists('users')) {
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// Confirm users is InnoDB and id is an unsigned INT
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$engineRow = $db->query("
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SELECT ENGINE FROM information_schema.TABLES
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'users'
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")->getFirstRow('array');
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$colRow = $db->query("
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SELECT COLUMN_TYPE, IS_NULLABLE
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'users' AND COLUMN_NAME = 'id'
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")->getFirstRow('array');
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$isInno = isset($engineRow['ENGINE']) && strtoupper($engineRow['ENGINE']) === 'INNODB';
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$isUint = isset($colRow['COLUMN_TYPE']) && stripos($colRow['COLUMN_TYPE'], 'int') !== false && stripos($colRow['COLUMN_TYPE'], 'unsigned') !== false;
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if ($isInno && $isUint) {
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// Add the FK now (separate ALTER avoids "incorrectly formed" during CREATE)
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$db->query("
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ALTER TABLE inventory_items
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ADD CONSTRAINT fk_inventory_items_updated_by
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FOREIGN KEY (updated_by) REFERENCES users(id)
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ON DELETE SET NULL ON UPDATE CASCADE
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");
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}
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// If not compatible, we skip the FK to avoid migration failure.
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}
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}
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public function down()
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{
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// Drop children first
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$db = \Config\Database::connect();
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if ($db->tableExists('inventory_items')) {
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// drop conditional FK if exists
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try { $db->query("ALTER TABLE inventory_items DROP FOREIGN KEY fk_inventory_items_updated_by"); } catch (\Throwable $e) {}
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}
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$this->forge->dropTable('inventory_items', true);
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$this->forge->dropTable('inventory_categories', true);
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}
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}
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