feat: createAdapter and createTable

[productdevbook]

import type { PluginSchema } from 'unadapter/types'
import { createAdapter, createTable, mergePluginSchemas } from 'unadapter'
import { memoryAdapter } from 'unadapter/memory'

const db = {
  user: [],
  session: [],
}

interface CustomOptions {
  appName?: string
  plugins?: {
    schema?: PluginSchema
  }[]
  user?: {
    fields?: {
      name?: string
      email?: string
      emailVerified?: string
      image?: string
      createdAt?: string
    }
  }
}

const tables = createTable<CustomOptions>((options) => {
  const { user, account, ..._pluginTables } = mergePluginSchemas<CustomOptions>(options) || {}

  return {
    user: {
      modelName: 'user',
      fields: {
        name: {
          type: 'string',
          required: true,
          fieldName: options?.user?.fields?.name || 'name',
          sortable: true,
        },
        email: {
          type: 'string',
          unique: true,
          required: true,
          fieldName: options?.user?.fields?.email || 'email',
          sortable: true,
        },
        emailVerified: {
          type: 'boolean',
          defaultValue: () => false,
          required: true,
          fieldName: options?.user?.fields?.emailVerified || 'emailVerified',
        },
        image: {
          type: 'string',
          required: false,
          fieldName: options?.user?.fields?.image || 'image',
        },
        createdAt: {
          type: 'date',
          defaultValue: () => new Date(),
          required: true,
          fieldName: options?.user?.fields?.createdAt || 'createdAt',
        },
        ...user?.fields,
        ...options?.user?.fields,
      },
    },
  }
})
const adapter = createAdapter(tables, {
  database: memoryAdapter(
    db,
    {},
  ),
  plugins: [{
    schema: {
      user: {
        modelName: 'user',
        fields: {
          header: {
            type: 'string',
            required: true,
            fieldName: 'header',
          },
        },
      },
    },
  }],
})

// eslint-disable-next-line antfu/no-top-level-await
const user = await adapter.create({
  model: 'user',
  data: {
    name: 'John Doe',
    email: '[email protected]',
    emailVerified: true,
    createdAt: new Date(),
    updatedAt: new Date(),
  },
})
// eslint-disable-next-line antfu/no-top-level-await
const _users = await adapter.findMany({
  model: 'user',
  where: [
    {
      field: 'email',
      value: '[email protected]',
      operator: 'eq',
    },
  ],
})

console.log('Found users:', user, db)

// console.log('Found users:', user, db)
❯ tsx playground/memory.ts
Found users: {
  name: 'John Doe',
  email: '[email protected]',
  emailVerified: true,
  image: undefined,
  createdAt: 2025-04-19T07:29:02.109Z,
  header: undefined,
  id: 'fbe90b82-47d7-481f-8423-5f7c1f0bd7c6'
} {
  user: [
    {
      name: 'John Doe',
      email: '[email protected]',
      emailVerified: true,
      createdAt: 2025-04-19T07:29:02.109Z,
      id: 'fbe90b82-47d7-481f-8423-5f7c1f0bd7c6'
    }
  ],
  session: []
}

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	73.69%	2124 / 2882
🔵	Statements	73.69%	2124 / 2882
🔵	Functions	83.73%	103 / 123
🔵	Branches	76.62%	518 / 676

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
src/adapters/create/index.ts	83.41%	84.06%	88.88%	83.41%	93, 95-96, 109-131, 133-137, 167-178, 186-189, 223-226, 239, 275-279, 288-289, 356-357, 361, 363-369, 440-441, 508-509, 566-579, 855-888, 890-898, 916-933
src/adapters/create/types.ts	100%	100%	100%	100%
src/adapters/drizzle/drizzle-adapter.ts	76.36%	73.52%	92.85%	76.36%	70-73, 76-79, 107-113, 123-130, 135-138, 155-156, 159-162, 165-168, 185-186, 189-190, 203-209, 215-216, 234-237, 240-243, 297-307
src/adapters/kysely/dialect.ts	64.1%	57.69%	100%	64.1%	10-11, 13-14, 17-18, 20-21, 23-24, 30-31, 40-41, 47-51, 61-65, 76-79
src/adapters/kysely/kysely-adapter.ts	79.6%	76.28%	92.85%	79.6%	109-111, 113-114, 116-117, 164-184, 188-189, 220-221, 241-242, 287-288, 303-304, 310-337, 350-351, 365-366
src/adapters/memory/memory-adapter.ts	94.55%	86.66%	91.66%	94.55%	37, 39-40, 52-53, 123-124, 163
src/adapters/mongodb/mongodb-adapter.ts	82.74%	70.1%	94.11%	82.74%	22-23, 31-32, 39-41, 43-46, 49-50, 63-64, 69-81, 88-89, 105-107, 140, 176, 181-182, 184-185, 187-188, 190-191, 193-194, 206, 225-226, 257-258, 305-313
src/adapters/prisma/prisma-adapter.ts	81.81%	73.58%	92.3%	81.81%	92-93, 110-112, 116-120, 136-139, 152-155, 171-174, 192-201, 208-211
src/db/get-migration.ts	68.84%	78.08%	60%	68.84%	67-80, 92-96, 99-103, 134-139, 141-143, 146-169, 227-228, 230-231, 233-234, 238-258, 307-309
src/db/get-schema.ts	83.78%	66.66%	100%	83.78%	32-37
src/db/schema.ts	0%	100%	100%	0%	7-207
src/utils/create.ts	88.88%	66.66%	100%	88.88%	13-14
src/utils/index.ts	100%	100%	100%	100%
src/utils/plugin.ts	4.54%	100%	0%	4.54%	6-30

Generated in workflow #53 for commit 9073952 by the Vitest Coverage Report Action

[Copilot]

Pull Request Overview

This PR introduces the new functions createAdapter and createTable with updated type definitions throughout the codebase. Key changes include the renaming of UnDbSchema to TablesSchema, enhanced generic handling in adapter functions, and updates to documentation and playground examples to reflect these changes.

Reviewed Changes

Copilot reviewed 35 out of 35 changed files in this pull request and generated 2 comments.

File	Description
src/utils/create.ts	Added createAdapter and createTable functions with better generics.
src/types/*	Updated types from UnDbSchema to TablesSchema.
src/adapters/*	Refactored adapter implementations to support new type definitions.
playground/memory.ts & README.md	Updated examples and documentation to align with new types.

[Copilot]

Avoid using 'as any' for the db parameter. Instead, consider refining the type of db to maintain type safety throughout the adapter.

Suggested change

	const databaseType = getDatabaseType(db as any)
	const databaseType = getDatabaseType(db)

[Copilot]

Avoid casting options to any. Strengthen the type constraint on options to ensure proper type safety in the adapter instance creation.

Suggested change

	options: options as any,
	})
	options: options as AdapterOptions,