root
48 lines
1.4 KiB
PHP
48 lines
1.4 KiB
PHP
<?php
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namespace App\Database\Migrations;
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use CodeIgniter\Database\Migration;
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class AddYearlyBatchNumberToReimbursementBatches extends Migration
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{
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public function up()
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{
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$fields = [
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'yearly_batch_number' => [
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'type' => 'INT',
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'constraint' => 11,
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'unsigned' => true,
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'default' => 0,
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'null' => false,
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'after' => 'title',
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],
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];
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$this->forge->addColumn('reimbursement_batches', $fields);
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$this->fillExistingBatchNumbers();
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}
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public function down()
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{
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$this->forge->dropColumn('reimbursement_batches', 'yearly_batch_number');
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}
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private function fillExistingBatchNumbers(): void
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{
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$this->db->query("SET @prev_school_year := '', @row_number := 0");
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$this->db->query(
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'UPDATE reimbursement_batches b
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JOIN (
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SELECT id,
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(@row_number := IF(@prev_school_year = COALESCE(school_year, \'\'), @row_number + 1, 1)) AS seq,
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@prev_school_year := COALESCE(school_year, \'\') AS school_year_marker
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FROM reimbursement_batches
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ORDER BY COALESCE(school_year, \'\'), COALESCE(opened_at, \'1970-01-01 00:00:00\'), id
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) ranks ON b.id = ranks.id
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SET b.yearly_batch_number = ranks.seq'
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);
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}
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}
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