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| 1 | +// Unified migration: agreement_exemption_status, exemption, exemption_status_type, exemption_status_history, exemption_attachment |
| 2 | + |
| 3 | +exports.up = async function (knex) { |
| 4 | + // 1. Create agreement_exemption_status table |
| 5 | + await knex.raw(` |
| 6 | + CREATE TABLE agreement_exemption_status ( |
| 7 | + id SERIAL PRIMARY KEY, |
| 8 | + code VARCHAR(32) UNIQUE NOT NULL, |
| 9 | + description VARCHAR(255) NOT NULL, |
| 10 | + active BOOLEAN NOT NULL DEFAULT TRUE, |
| 11 | + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP, |
| 12 | + updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP |
| 13 | + ); |
| 14 | + `); |
| 15 | + await knex.raw(` |
| 16 | + INSERT INTO agreement_exemption_status (id, code, description, active) |
| 17 | + VALUES |
| 18 | + (1, 'NOT_EXEMPTED', 'Not Exempted', TRUE), |
| 19 | + (2, 'ACTIVE', 'Active', TRUE), |
| 20 | + (3, 'SCHEDULED', 'Scheduled', TRUE) |
| 21 | + `); |
| 22 | + |
| 23 | + // 2. Add exemption_status column to agreement table |
| 24 | + await knex.raw(`ALTER TABLE agreement ADD COLUMN exemption_status VARCHAR(32) NOT NULL DEFAULT 'NOT_EXEMPTED';`); |
| 25 | + await knex.raw( |
| 26 | + `ALTER TABLE agreement ADD CONSTRAINT agreement_exemption_status_fk FOREIGN KEY (exemption_status) REFERENCES agreement_exemption_status(code);`, |
| 27 | + ); |
| 28 | + await knex.raw(`UPDATE agreement SET exemption_status = 'NOT_EXEMPTED';`); |
| 29 | + |
| 30 | + // 4. Create exemption_status_type table |
| 31 | + await knex.raw(` |
| 32 | + CREATE TABLE exemption_status_type ( |
| 33 | + id SERIAL PRIMARY KEY, |
| 34 | + code VARCHAR(32) UNIQUE NOT NULL, |
| 35 | + description TEXT NOT NULL, |
| 36 | + active BOOLEAN NOT NULL DEFAULT TRUE, |
| 37 | + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP, |
| 38 | + updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP |
| 39 | + ); |
| 40 | + `); |
| 41 | + await knex.raw(` |
| 42 | + INSERT INTO exemption_status_type (code, description, active) |
| 43 | + VALUES |
| 44 | + ('Draft', 'Draft - editable by Staff Agrologist', TRUE), |
| 45 | + ('Pending Approval', 'Pending approval - submitted to Decision Maker', TRUE), |
| 46 | + ('Approved', 'Approved - read only', TRUE), |
| 47 | + ('Rejected', 'Rejected - editable by Staff Agrologist', TRUE), |
| 48 | + ('Cancelled', 'Cancelled by Decision Maker', TRUE), |
| 49 | + ('Deleted', 'Deleted', TRUE) |
| 50 | + `); |
| 51 | + |
| 52 | + // 3. Create exemption table |
| 53 | + await knex.raw(` |
| 54 | + CREATE TABLE exemption ( |
| 55 | + id SERIAL PRIMARY KEY, |
| 56 | + agreement_id VARCHAR(9) NOT NULL REFERENCES agreement(forest_file_id) ON DELETE CASCADE, |
| 57 | + start_date DATE NOT NULL, |
| 58 | + end_date DATE NOT NULL, |
| 59 | + reason TEXT, |
| 60 | + justification_text TEXT, |
| 61 | + status VARCHAR(32) NOT NULL DEFAULT 'Draft' REFERENCES exemption_status_type(code), |
| 62 | + user_id INTEGER NOT NULL REFERENCES user_account(id), |
| 63 | + approved_by INTEGER NULL REFERENCES user_account(id), |
| 64 | + approval_date TIMESTAMP WITH TIME ZONE NULL, |
| 65 | + created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP, |
| 66 | + updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP |
| 67 | + ); |
| 68 | + `); |
| 69 | + |
| 70 | + // 5. Create exemption_status_history table |
| 71 | + await knex.raw(` |
| 72 | + CREATE TABLE exemption_status_history ( |
| 73 | + id SERIAL PRIMARY KEY, |
| 74 | + exemption_id INTEGER NULL REFERENCES exemption(id) ON DELETE CASCADE, |
| 75 | + from_status VARCHAR(32) NULL REFERENCES exemption_status_type(code), |
| 76 | + to_status VARCHAR(32) NOT NULL REFERENCES exemption_status_type(code), |
| 77 | + note TEXT, |
| 78 | + user_id INTEGER NOT NULL REFERENCES user_account(id), |
| 79 | + created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP(3), |
| 80 | + updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP(3) |
| 81 | + ); |
| 82 | + `); |
| 83 | + await knex.raw(`CREATE INDEX idx_exemption_status_history_exemption_id ON exemption_status_history(exemption_id);`); |
| 84 | + await knex.raw(`CREATE INDEX idx_exemption_status_history_to_status ON exemption_status_history(to_status);`); |
| 85 | + await knex.raw( |
| 86 | + `CREATE TRIGGER update_exemption_status_history_changetimestamp BEFORE UPDATE ON exemption_status_history FOR EACH ROW EXECUTE PROCEDURE update_changetimestamp_column();`, |
| 87 | + ); |
| 88 | + |
| 89 | + // 6. Create exemption_attachment table |
| 90 | + await knex.raw(` |
| 91 | + CREATE TABLE exemption_attachment ( |
| 92 | + id SERIAL PRIMARY KEY, |
| 93 | + name VARCHAR NOT NULL, |
| 94 | + url VARCHAR NOT NULL, |
| 95 | + type VARCHAR NOT NULL, |
| 96 | + access VARCHAR NOT NULL DEFAULT 'staff_only', |
| 97 | + exemption_id INTEGER NOT NULL REFERENCES exemption(id) ON DELETE CASCADE, |
| 98 | + user_id INTEGER NOT NULL REFERENCES user_account(id), |
| 99 | + created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP(3), |
| 100 | + updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP(3) |
| 101 | + ); |
| 102 | + `); |
| 103 | + await knex.raw(`CREATE INDEX idx_exemption_attachment_exemption_id ON exemption_attachment(exemption_id);`); |
| 104 | + await knex.raw(`CREATE INDEX idx_exemption_attachment_user_id ON exemption_attachment(user_id);`); |
| 105 | + await knex.raw( |
| 106 | + `CREATE TRIGGER update_exemption_attachment_changetimestamp BEFORE UPDATE ON exemption_attachment FOR EACH ROW EXECUTE PROCEDURE update_changetimestamp_column();`, |
| 107 | + ); |
| 108 | + |
| 109 | + // 7. Drop legacy tables/columns if they exist |
| 110 | + await knex.raw('DROP TABLE IF EXISTS ref_agreement_exemption_status CASCADE;'); |
| 111 | + const hasOldCol = await knex.schema.hasColumn('agreement', 'agreement_exemption_status_id'); |
| 112 | + if (hasOldCol) { |
| 113 | + await knex.schema.alterTable('agreement', (table) => { |
| 114 | + table.dropColumn('agreement_exemption_status_id'); |
| 115 | + }); |
| 116 | + } |
| 117 | + |
| 118 | + await knex.raw(` |
| 119 | + INSERT INTO email_template (name, from_email, subject, body) |
| 120 | + SELECT 'Exemption Status Change', 'MyRangeBC@gov.bc.ca', 'Exemption Status Update', 'Exemption for agreement {agreementId} is {toStatus}.' |
| 121 | + WHERE NOT EXISTS ( |
| 122 | + SELECT 1 FROM email_template WHERE name = 'Exemption Status Change' |
| 123 | + ) |
| 124 | + `); |
| 125 | + await knex.raw(` |
| 126 | + INSERT INTO email_template (name, from_email, subject, body) |
| 127 | + SELECT 'Agreement Exemption Status Change', 'MyRangeBC@gov.bc.ca', 'Agreement Exemption Status Change', 'Exemption {toStatus} for agreement {agreement_id}.' |
| 128 | + WHERE NOT EXISTS ( |
| 129 | + SELECT 1 FROM email_template WHERE name = 'Agreement Exemption Status Change' |
| 130 | + ) |
| 131 | + `); |
| 132 | +}; |
| 133 | + |
| 134 | +exports.down = async function (knex) { |
| 135 | + await knex('email_template').where({ name: 'Agreement Exemption Status Change' }).del(); |
| 136 | + await knex('email_template').where({ name: 'Exemption Status Change' }).del(); |
| 137 | + await knex.raw('DROP TABLE IF EXISTS exemption_attachment CASCADE;'); |
| 138 | + await knex.raw('DROP TABLE IF EXISTS exemption_status_history CASCADE;'); |
| 139 | + await knex.raw('DROP TABLE IF EXISTS exemption_status_type CASCADE;'); |
| 140 | + await knex.raw('DROP TABLE IF EXISTS exemption CASCADE;'); |
| 141 | + await knex.raw('DROP TABLE IF EXISTS agreement_exemption_status CASCADE;'); |
| 142 | + // Remove the new exemption_status column |
| 143 | + const hasNewCol = await knex.schema.hasColumn('agreement', 'exemption_status'); |
| 144 | + if (hasNewCol) { |
| 145 | + await knex.schema.alterTable('agreement', (table) => { |
| 146 | + table.dropForeign('exemption_status'); |
| 147 | + table.dropColumn('exemption_status'); |
| 148 | + }); |
| 149 | + } |
| 150 | + // Re-add the old foreign key column (no default value, must be handled manually) |
| 151 | + const hasOldCol = await knex.schema.hasColumn('agreement', 'agreement_exemption_status_id'); |
| 152 | + if (!hasOldCol) { |
| 153 | + await knex.schema.alterTable('agreement', (table) => { |
| 154 | + table.integer('agreement_exemption_status_id').notNullable(); |
| 155 | + }); |
| 156 | + } |
| 157 | +}; |
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