generate() — drizzle-orm Function Reference

Architecture documentation for the generate() function in Generators.ts from the drizzle-orm codebase.

Function typescript DrizzleSeed SeedOrchestration calls 1

Entity Profile

DrizzleSeed→ SeedOrchestration→ generate() — drizzle-orm Function Reference

Dependency Diagram

graph TD
  325ca051_7245_4330_326b_dfef7f0ab70c["generate()"]
  83e6e27d_e6f9_bff6_68c3_56410960af01["GeneratePostcode"]
  325ca051_7245_4330_326b_dfef7f0ab70c -->|defined in| 83e6e27d_e6f9_bff6_68c3_56410960af01
  b796adef_dfbc_ebaa_ea14_31e6339b630a["fillTemplate()"]
  325ca051_7245_4330_326b_dfef7f0ab70c -->|calls| b796adef_dfbc_ebaa_ea14_31e6339b630a
  style 325ca051_7245_4330_326b_dfef7f0ab70c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-seed/src/services/Generators.ts lines 2439–2465

	generate() {
		if (this.state === undefined) {
			throw new Error('state is not defined.');
		}

		let idx: number, postcodeNumber: number;

		[idx, this.state.rng] = prand.uniformIntDistribution(0, this.state.templates.length - 1, this.state.rng);
		const template = this.state.templates[idx]!;

		const iterArray = [...template.matchAll(/#/g)];
		const placeholdersCount = iterArray.length;

		[postcodeNumber, this.state.rng] = prand.uniformIntDistribution(
			0,
			Math.pow(10, placeholdersCount) - 1,
			this.state.rng,
		);
		const postcode = fillTemplate({
			template,
			placeholdersCount,
			values: [...String(postcodeNumber)],
			defaultValue: '0',
		});

		return postcode;
	}