root
55 lines
2.0 KiB
PHP
55 lines
2.0 KiB
PHP
<?php
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namespace App\Database\Migrations;
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use CodeIgniter\Database\Migration;
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class FixStudentSectionDistributionDraftIndexes extends Migration
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{
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public function up()
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{
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if (! $this->db->tableExists('student_section_distribution_drafts')) {
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return;
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}
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$this->dropIndexIfExists('student_section_distribution_drafts', 'class_id_school_year_status');
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$this->dropIndexIfExists('student_section_distribution_drafts', 'class_section_id_school_year');
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$this->dropIndexIfExists('student_section_distribution_drafts', 'distribution_draft_class_year_status');
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$this->dropIndexIfExists('student_section_distribution_drafts', 'distribution_draft_section_year');
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$this->db->query(
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'CREATE INDEX distribution_draft_class_year_status ' .
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'ON student_section_distribution_drafts (class_id, school_year, status)'
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);
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$this->db->query(
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'CREATE INDEX distribution_draft_section_year ' .
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'ON student_section_distribution_drafts (class_section_id, school_year)'
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);
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}
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public function down()
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{
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if (! $this->db->tableExists('student_section_distribution_drafts')) {
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return;
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}
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$this->dropIndexIfExists('student_section_distribution_drafts', 'distribution_draft_class_year_status');
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$this->dropIndexIfExists('student_section_distribution_drafts', 'distribution_draft_section_year');
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}
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private function dropIndexIfExists(string $table, string $indexName): void
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{
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$row = $this->db->query(
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'SHOW INDEX FROM ' . $this->db->protectIdentifiers($table, true) .
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' WHERE Key_name = ' . $this->db->escape($indexName)
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)->getRowArray();
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if ($row) {
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$this->db->query(
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'ALTER TABLE ' . $this->db->protectIdentifiers($table, true) .
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' DROP INDEX ' . $this->db->protectIdentifiers($indexName)
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);
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}
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}
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}
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