@onn-software/ddl-to-gql/dist/main-generator/main-generator.template.d.ts

Convert a SQL DDL to a GraphQL implementation with all relations.

export declare const main = "import {allGqlQueryResolvers, allGqlTypeResolvers, allGqlMutationResolvers, OnnResolverHooks} from './resolvers';\nimport {QueryBuilder, QueryOperator, Clause, MutationResult, OnnContext, MemCache} from './model';\nimport {OnnBaseRepo} from './repos';\n\nexport interface GqlParams<GraphQLResolveInfo = any> {\n  parent: any;\n  args: Record<string, any>;\n  context: OnnContext | any;\n  info: GraphQLResolveInfo;\n}\n\nexport interface OnnResolverWrapper {\n  before: (resolverName:string, tableName :string, gqlParams: GqlParams) => Promise<any | undefined | null>;\n  after: (resolverName:string, tableName :string, result: any, gqlParams: GqlParams) => Promise<any>;\n}\n\nexport type OnnExecute = (knexQb: Knex.QueryBuilder, action: string, options: any, context: OnnContext | any) => Promise<Knex.QueryBuilder | any>;\n\nexport class OnnDdlToGql<GraphQLResolveInfo = any> {\n  constructor(queryBuilderFactory: <T extends {}>(context: OnnContext | any) => QueryBuilder<T>, options?: { onnWrapperBuilder?: () => OnnResolverWrapper }) {\n    OnnBaseRepo.BUILDER_FACTORY = queryBuilderFactory;\n    \n    if (options?.onnWrapperBuilder) {\n      OnnResolverHooks.buildWrapper = options.onnWrapperBuilder;\n    }\n  }\n\n  getAllTypeResolvers = () => allGqlTypeResolvers;\n  getAllQueryResolvers = () => allGqlQueryResolvers;\n  getAllGqlMutationResolvers = () => allGqlMutationResolvers;\n}\n\nexport const SimpleOnExecute: OnnExecute = async (knexQb, action, options, context = {}) => {\n    return knexQb;\n}\n\nexport const contextCachingOnExecute: OnnExecute = async (knexQb, action, options, context = {}) => {\n  if(context?.onn?.extras?.transacting){\n    knexQb = knexQb.transacting(context.onn.extras.transacting)\n  }\n  if(['QUERY', 'COUNT'].indexOf(action) < 0) return knexQb;\n  if (!context.onn) context.onn = {};\n  if (context.onn.skipCache) return knexQb;\n  if (!context.onn.cache) {\n      context.onn.cache = new MemCache();\n  }  \n    \n  let res = await context.onn.cache.get(options);\n  if (!res) {\n      res = await knexQb;\n      await context.onn.cache.set(options, res);\n  }\n  return res;\n};\n\n__FACTORY__\n";
export declare const knexFactrory = "import { Knex } from 'knex';\n\nexport interface KnexQueryBuilderOptions {\n    table: string;\n    where: Clause[];\n    orderBy?: { field: string; direction: 'asc' | 'desc' };\n    distinct: string[];\n    limit?: number;\n    offset?: number;\n    select?: string | string[];\n}\n\nexport const knexQueryBuilderFactory =\n  (\n    knex: Knex,\n    onExecute: OnnExecute = contextCachingOnExecute\n  ) =>\n  <T extends {}>(context: OnnContext | any) =>\n    new KnexQueryBuilder<T>(context, knex, onExecute);\n\nexport class KnexQueryBuilder<TYPE extends {}> implements QueryBuilder<TYPE, Knex> {\n  private options: KnexQueryBuilderOptions = {\n    table: '',\n    where: [],\n    distinct: [],\n  };\n\n  constructor(private context: OnnContext | any, private knex: Knex, private onExecute: OnnExecute) {}\n\n  private build(): Knex.QueryBuilder<TYPE> {\n    let qb = this.knex<TYPE>(this.options.table) as Knex.QueryBuilder<TYPE>;\n    \n    this.options.where.forEach((clause) => {\n      const safeField = this.options.table + \".\" + clause.field;\n      switch (clause.operator) {\n        case QueryOperator.EQUALS:\n          qb.where(safeField, clause.value);\n          break;\n        case QueryOperator.IN:\n          qb.whereIn(safeField, clause.value);\n          break;\n        case QueryOperator.BETWEEN:\n          qb.whereBetween(safeField, clause.value);\n          break;\n        case QueryOperator.LIKE:\n          qb.whereLike(safeField, clause.value);\n          break;\n        case QueryOperator.NULL:\n          qb.whereNull(safeField);\n          break;\n        case QueryOperator.NOT_EQUALS:\n          qb.whereNot(safeField, clause.value);\n          break;\n        case QueryOperator.NOT_IN:\n          qb.whereNotIn(safeField, clause.value);\n          break;\n        case QueryOperator.NOT_BETWEEN:\n          qb.whereNotBetween(safeField, clause.value);\n          break;\n        case QueryOperator.NOT_NULL:\n          qb.whereNotNull(safeField);\n          break;\n      }\n    });\n    \n    if(this.options.orderBy?.field) {\n        qb.orderBy(this.options.table + \".\" + this.options.orderBy.field, this.options.orderBy.direction);\n    }\n    \n    return qb;\n  }\n\n  async executeQuery(): Promise<TYPE[]> {\n    const qb = this.build();\n    if (this.options.offset) {\n      qb.offset(this.options.offset);\n    }\n    if (this.options.limit) {\n      qb.limit(this.options.limit);\n    }\n    if(this.options.distinct.length > 0) {\n      qb.distinct(...this.options.distinct).select(...this.options.distinct);\n    } else if (this.options.select) {\n      qb.select(this.options.select);\n    }\n        \n    return this.onExecute(qb, 'QUERY', this.options, this.context);\n  }\n\n  async executeCount(): Promise<number> {\n    const count = await this.onExecute(this.build().count(), 'COUNT', this.options, this.context);\n    return Object.values(count[0])[0] as number;\n  }\n  \n  async executeInsert(value: any): Promise<MutationResult> {\n    try {\n      const [res] = await this.onExecute(this.build().insert(value), 'INSERT', this.options, this.context);\n      return {rows: res ? 1 : 0, res: `${res}`}\n    } catch (e: any) {\n        return {rows: 0, res: '', error: e.message ?? e.toString()}\n    }\n  }\n  \n  async executeUpdate(value: any): Promise<MutationResult> {\n    try {\n      const rows = await this.onExecute(this.build().update(value), 'UPDATE', this.options, this.context);\n      return {rows, res: '', error: rows > 0 ? undefined : 'Nothing matches clauses'}\n    } catch (e: any) {\n        return {rows: 0, res: '', error: e.message ?? e.toString()}\n    }\n  }\n  \n  async executeDelete(): Promise<MutationResult> {\n    try {\n      const rows = await this.onExecute(this.build().delete(), 'DELETE', this.options, this.context);\n      return {rows, res: '', error: rows > 0 ? undefined : 'Nothing matches clauses'}\n    } catch (e: any) {\n        return {rows: 0, res: '', error: e.message ?? e.toString()}\n    }\n  }\n\n  limit(limit: number): QueryBuilder<TYPE, Knex> {\n    this.options.limit = limit;\n    return this;\n  }\n\n  offset(offset: number): QueryBuilder<TYPE, Knex> {\n    this.options.offset = offset;\n    return this;\n  }\n\n  select(fields: string | string[]): QueryBuilder<TYPE, Knex> {\n    this.options.select = fields;\n    return this;\n  }\n\n  table(tableName: string): QueryBuilder<TYPE, Knex> {\n    this.options.table = tableName;\n    return this;\n  }\n\n  orderBy(orderBy?: {field: string, direction: 'asc' | 'desc'}): QueryBuilder<TYPE, Knex> {\n    this.options.orderBy = orderBy;\n    return this;\n  }\n\n  distinct(distinct: string[] = []): QueryBuilder<TYPE, Knex> {\n    this.options.distinct = distinct;\n    return this;\n  }\n\n  where(...clauses: Clause[]): QueryBuilder<TYPE, Knex> {\n    this.options.where.push(...clauses);\n    return this;\n  }\n}\n\n";