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
  7ae272f9_2902_e014_c84c_8fbc3d2fedab["generate()"]
  ceb81d51_73ac_db15_ae33_21b9d9a2eb54["GenerateUniqueString"]
  7ae272f9_2902_e014_c84c_8fbc3d2fedab -->|defined in| ceb81d51_73ac_db15_ae33_21b9d9a2eb54
  style 7ae272f9_2902_e014_c84c_8fbc3d2fedab fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-seed/src/services/Generators.ts lines 1481–1510

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

		const minStringLength = 7;
		const maxStringLength = 20;
		const stringChars = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
		let idx: number,
			strLength: number;
		let currStr: string;

		currStr = '';
		const uniqueStr = i.toString(16);
		[strLength, this.state.rng] = prand.uniformIntDistribution(
			minStringLength,
			maxStringLength - uniqueStr.length,
			this.state.rng,
		);
		for (let j = 0; j < strLength - uniqueStr.length; j++) {
			[idx, this.state.rng] = prand.uniformIntDistribution(
				0,
				stringChars.length - 1,
				this.state.rng,
			);
			currStr += stringChars[idx];
		}

		return currStr.slice(0, 4) + uniqueStr + currStr.slice(4);
	}