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PgAlterTableAlterCompositePrimaryKeyConvertor Class — drizzle-orm Architecture

Architecture documentation for the PgAlterTableAlterCompositePrimaryKeyConvertor class in sqlgenerator.ts from the drizzle-orm codebase.

Class typescript DrizzleKit

Entity Profile

Dependency Diagram

graph TD
  aedf7812_108a_f1ca_1873_9b82887d998e["PgAlterTableAlterCompositePrimaryKeyConvertor"]
  fe4174c7_3b9c_5b26_98a0_b2395ca21939["sqlgenerator.ts"]
  aedf7812_108a_f1ca_1873_9b82887d998e -->|defined in| fe4174c7_3b9c_5b26_98a0_b2395ca21939
  eaf01ab8_9f45_4512_19bd_a10cd878a4d5["can()"]
  aedf7812_108a_f1ca_1873_9b82887d998e -->|method| eaf01ab8_9f45_4512_19bd_a10cd878a4d5
  85408706_5160_9850_2b44_222ba3ff501c["convert()"]
  aedf7812_108a_f1ca_1873_9b82887d998e -->|method| 85408706_5160_9850_2b44_222ba3ff501c

Relationship Graph

Source Code

drizzle-kit/src/sqlgenerator.ts lines 3106–3125

class PgAlterTableAlterCompositePrimaryKeyConvertor extends Convertor {
	can(statement: JsonStatement, dialect: Dialect): boolean {
		return statement.type === 'alter_composite_pk' && dialect === 'postgresql';
	}

	convert(statement: JsonAlterCompositePK) {
		const { name, columns } = PgSquasher.unsquashPK(statement.old);
		const { name: newName, columns: newColumns } = PgSquasher.unsquashPK(
			statement.new,
		);

		const tableNameWithSchema = statement.schema
			? `"${statement.schema}"."${statement.tableName}"`
			: `"${statement.tableName}"`;

		return `ALTER TABLE ${tableNameWithSchema} DROP CONSTRAINT "${statement.oldConstraintName}";\n${BREAKPOINT}ALTER TABLE ${tableNameWithSchema} ADD CONSTRAINT "${statement.newConstraintName}" PRIMARY KEY("${
			newColumns.join('","')
		}");`;
	}
}

Domain

Defined In

Source

Frequently Asked Questions

What is the PgAlterTableAlterCompositePrimaryKeyConvertor class?
PgAlterTableAlterCompositePrimaryKeyConvertor is a class in the drizzle-orm codebase, defined in drizzle-kit/src/sqlgenerator.ts.
Where is PgAlterTableAlterCompositePrimaryKeyConvertor defined?
PgAlterTableAlterCompositePrimaryKeyConvertor is defined in drizzle-kit/src/sqlgenerator.ts at line 3106.

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