generate() — drizzle-orm Function Reference

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

Function typescript DrizzleSeed SeedOrchestration

Entity Profile

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

Dependency Diagram

graph TD
  74b81297_5013_ca1d_0662_ecfc835701bf["generate()"]
  1eb4cc3b_1b3f_0a33_4f89_0accb688801e["GenerateWeightedCount"]
  74b81297_5013_ca1d_0662_ecfc835701bf -->|defined in| 1eb4cc3b_1b3f_0a33_4f89_0accb688801e
  style 74b81297_5013_ca1d_0662_ecfc835701bf fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-seed/src/services/Generators.ts lines 147–167

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

		// logic for this generator
		let idx: number;
		const weightedCount = this.state.weightedCount;

		[idx, this.state.rng] = prand.uniformIntDistribution(0, this.state.weightedIndices.length - 1, this.state.rng);
		const objIdx = this.state.weightedIndices[idx] as number;

		if (typeof weightedCount[objIdx]!.count === 'number') {
			return weightedCount[objIdx]!.count as number;
		} else {
			// typeof weightedCount[objIdx]!.count === 'object' // number[]
			const possCounts = weightedCount[objIdx]!.count as number[];
			[idx, this.state.rng] = prand.uniformIntDistribution(0, possCounts.length - 1, this.state.rng);
			return possCounts[idx]!;
		}
	}