@decaf-ts/db-decorators
Version:
Agnostic database decorators and repository
258 lines (256 loc) • 24.3 kB
JavaScript
import { DBOperations, OperationKeys } from "./constants";
import { Operations } from "./Operations";
import { apply } from "@decaf-ts/reflection";
import { propMetadata } from "@decaf-ts/decorator-validation";
function handle(op, handler) {
return (target, propertyKey) => {
Operations.register(handler, op, target, propertyKey);
};
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations.CREATE_UPDATE}
*
* @param {OnOperationHandler<any>} handler The method called upon the operation
* @param data
* @param {any[]} [args] Arguments that will be passed in order to the handler method
*
* @see on
*
* @function onCreateUpdate
*
* @category Decorators
*/
export function onCreateUpdate(handler, data) {
return on(DBOperations.CREATE_UPDATE, handler, data);
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations.UPDATE}
*
* @param {OnOperationHandler<any>} handler The method called upon the operation
* @param data
* @param {any[]} [args] Arguments that will be passed in order to the handler method
*
* @see on
*
* @function onUpdate
*
* @category Decorators
*/
export function onUpdate(handler, data) {
return on(DBOperations.UPDATE, handler, data);
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations.CREATE}
*
* @param {OnOperationHandler<any>} handler The method called upon the operation
* @param data
*
* @see on
*
* @function onCreate
*
* @category Decorators
*/
export function onCreate(handler, data) {
return on(DBOperations.CREATE, handler, data);
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations.READ}
*
* @param {OnOperationHandler<any>} handler The method called upon the operation
* @param data
*
* @see on
*
* @function onRead
*
* @category Decorators
*/
export function onRead(handler, data) {
return on(DBOperations.READ, handler, data);
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations.DELETE}
*
* @param {OnOperationHandler<any>} handler The method called upon the operation
* @param data
*
* @see on
*
* @function onDelete
*
* @category Decorators
*/
export function onDelete(handler, data) {
return on(DBOperations.DELETE, handler, data);
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations.DELETE}
*
* @param {OnOperationHandler<any>} handler The method called upon the operation
* @param data
*
* @see on
*
* @function onAny
*
* @category Decorators
*/
export function onAny(handler, data) {
return on(DBOperations.ALL, handler, data);
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations}
*
* @param {OperationKeys[] | DBOperations} op One of {@link DBOperations}
* @param {OnOperationHandler<any>} handler The method called upon the operation
* @param data
*
* ex: handler(...args, ...props.map(p => target[p]))
*
* @function on
*
* @category Decorators
*/
export function on(op = DBOperations.ALL, handler, data) {
return operation(OperationKeys.ON, op, handler, data);
}
/**
* @summary Defines a behaviour to set after the defined {@link DBOperations.CREATE_UPDATE}
*
* @param {AfterOperationHandler<any>} handler The method called upon the operation
* @param data
*
* @see after
*
* @function afterCreateUpdate
*
* @category Decorators
*/
export function afterCreateUpdate(handler, data) {
return after(DBOperations.CREATE_UPDATE, handler, data);
}
/**
* @summary Defines a behaviour to set after the defined {@link DBOperations.UPDATE}
*
* @param {AfterOperationHandler<any>} handler The method called upon the operation
* @param data
*
* @see after
*
* @function afterUpdate
*
* @category Decorators
*/
export function afterUpdate(handler, data) {
return after(DBOperations.UPDATE, handler, data);
}
/**
* @summary Defines a behaviour to set after the defined {@link DBOperations.CREATE}
*
* @param {AfterOperationHandler<any>} handler The method called upon the operation
* @param data
*
* @see after
*
* @function afterCreate
*
* @category Decorators
*/
export function afterCreate(handler, data) {
return after(DBOperations.CREATE, handler, data);
}
/**
* @summary Defines a behaviour to set after the defined {@link DBOperations.READ}
*
* @param {AfterOperationHandler<any>} handler The method called upon the operation
* @param data
* @param {any[]} [args] Arguments that will be passed in order to the handler method
*
* @see after
*
* @function afterRead
*
* @category Decorators
*/
export function afterRead(handler, data) {
return after(DBOperations.READ, handler, data);
}
/**
* @summary Defines a behaviour to set after the defined {@link DBOperations.DELETE}
*
* @param {AfterOperationHandler<any>} handler The method called upon the operation
* @param data
* @param {any[]} [args] Arguments that will be passed in order to the handler method
*
* @see after
*
* @function afterDelete
*
* @category Decorators
*/
export function afterDelete(handler, data) {
return after(DBOperations.DELETE, handler, data);
}
/**
* @summary Defines a behaviour to set after the defined {@link DBOperations.DELETE}
*
* @param {AfterOperationHandler<any>} handler The method called upon the operation
* @param data
* @param {any[]} [args] Arguments that will be passed in order to the handler method
*
* @see after
*
* @function afterAny
*
* @category Decorators
*/
export function afterAny(handler, data) {
return after(DBOperations.ALL, handler, data);
}
/**
* @summary Defines a behaviour to set on the defined {@link DBOperations}
*
* @param {OperationKeys[] | DBOperations} op One of {@link DBOperations}
* @param {AfterOperationHandler<any>} handler The method called upon the operation
*
* ex: handler(...args, ...props.map(p => target[p]))
*
* @param data
* @param args
* @function after
*
* @category Decorators
*/
export function after(op = DBOperations.ALL, handler, data) {
return operation(OperationKeys.AFTER, op, handler, data);
}
export function operation(baseOp, operation = DBOperations.ALL, handler, dataToAdd) {
return (target, propertyKey) => {
const name = target.constructor.name;
const decorators = operation.reduce((accum, op) => {
const compoundKey = baseOp + op;
let data = Reflect.getMetadata(Operations.key(compoundKey), target, propertyKey);
if (!data)
data = {
operation: op,
handlers: {},
};
const handlerKey = Operations.getHandlerName(handler);
if (!data.handlers[name] ||
!data.handlers[name][propertyKey] ||
!(handlerKey in data.handlers[name][propertyKey])) {
data.handlers[name] = data.handlers[name] || {};
data.handlers[name][propertyKey] =
data.handlers[name][propertyKey] || {};
data.handlers[name][propertyKey][handlerKey] = {
data: dataToAdd,
};
accum.push(handle(compoundKey, handler), propMetadata(Operations.key(compoundKey), data));
}
return accum;
}, []);
return apply(...decorators)(target, propertyKey);
};
}
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{\n  IdOperationHandler,\n  OperationHandler,\n  StandardOperationHandler,\n  UpdateOperationHandler,\n} from \"./types\";\nimport { DBOperations, OperationKeys } from \"./constants\";\nimport { Operations } from \"./Operations\";\nimport { apply } from \"@decaf-ts/reflection\";\nimport { propMetadata } from \"@decaf-ts/decorator-validation\";\n\nfunction handle(\n  op: OperationKeys,\n  handler: OperationHandler<any, any, any, any>\n) {\n  return (target: any, propertyKey: string) => {\n    Operations.register(handler, op, target, propertyKey);\n  };\n}\n\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations.CREATE_UPDATE}\n *\n * @param {OnOperationHandler<any>} handler The method called upon the operation\n * @param data\n * @param {any[]} [args] Arguments that will be passed in order to the handler method\n *\n * @see on\n *\n * @function onCreateUpdate\n *\n * @category Decorators\n */\nexport function onCreateUpdate<T>(\n  handler:\n    | StandardOperationHandler<any, any, T, any>\n    | UpdateOperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return on(DBOperations.CREATE_UPDATE, handler, data);\n}\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations.UPDATE}\n *\n * @param {OnOperationHandler<any>} handler The method called upon the operation\n * @param data\n * @param {any[]} [args] Arguments that will be passed in order to the handler method\n *\n * @see on\n *\n * @function onUpdate\n *\n * @category Decorators\n */\nexport function onUpdate<T>(\n  handler: UpdateOperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return on(DBOperations.UPDATE, handler, data);\n}\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations.CREATE}\n *\n * @param {OnOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * @see on\n *\n * @function onCreate\n *\n * @category Decorators\n */\nexport function onCreate<T>(\n  handler: StandardOperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return on(DBOperations.CREATE, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations.READ}\n *\n * @param {OnOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * @see on\n *\n * @function onRead\n *\n * @category Decorators\n */\nexport function onRead<T>(\n  handler: IdOperationHandler<any, any, T, any>,\n  data: T\n) {\n  return on(DBOperations.READ, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations.DELETE}\n *\n * @param {OnOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * @see on\n *\n * @function onDelete\n *\n * @category Decorators\n */\nexport function onDelete<T>(\n  handler: OperationHandler<any, any, T, any>,\n  data: T\n) {\n  return on(DBOperations.DELETE, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations.DELETE}\n *\n * @param {OnOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * @see on\n *\n * @function onAny\n *\n * @category Decorators\n */\nexport function onAny<T>(handler: OperationHandler<any, any, T, any>, data: T) {\n  return on(DBOperations.ALL, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations}\n *\n * @param {OperationKeys[] | DBOperations} op One of {@link DBOperations}\n * @param {OnOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * ex: handler(...args, ...props.map(p => target[p]))\n *\n * @function on\n *\n * @category Decorators\n */\nexport function on<T>(\n  op: OperationKeys[] = DBOperations.ALL,\n  handler: OperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return operation(OperationKeys.ON, op, handler, data);\n}\n/**\n * @summary Defines a behaviour to set after the defined {@link DBOperations.CREATE_UPDATE}\n *\n * @param {AfterOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * @see after\n *\n * @function afterCreateUpdate\n *\n * @category Decorators\n */\nexport function afterCreateUpdate<T>(\n  handler:\n    | StandardOperationHandler<any, any, T, any>\n    | UpdateOperationHandler<any, any, T, any>,\n  data: T\n) {\n  return after(DBOperations.CREATE_UPDATE, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set after the defined {@link DBOperations.UPDATE}\n *\n * @param {AfterOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * @see after\n *\n * @function afterUpdate\n *\n * @category Decorators\n */\nexport function afterUpdate<T>(\n  handler: UpdateOperationHandler<any, any, T, any>,\n  data: T\n) {\n  return after(DBOperations.UPDATE, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set after the defined {@link DBOperations.CREATE}\n *\n * @param {AfterOperationHandler<any>} handler The method called upon the operation\n * @param data\n *\n * @see after\n *\n * @function afterCreate\n *\n * @category Decorators\n */\nexport function afterCreate<T>(\n  handler: StandardOperationHandler<any, any, T, any>,\n  data: T\n) {\n  return after(DBOperations.CREATE, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set after the defined {@link DBOperations.READ}\n *\n * @param {AfterOperationHandler<any>} handler The method called upon the operation\n * @param data\n * @param {any[]} [args] Arguments that will be passed in order to the handler method\n *\n * @see after\n *\n * @function afterRead\n *\n * @category Decorators\n */\nexport function afterRead<T>(\n  handler: StandardOperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return after(DBOperations.READ, handler, data);\n}\n/**\n * @summary Defines a behaviour to set after the defined {@link DBOperations.DELETE}\n *\n * @param {AfterOperationHandler<any>} handler The method called upon the operation\n * @param data\n * @param {any[]} [args] Arguments that will be passed in order to the handler method\n *\n * @see after\n *\n * @function afterDelete\n *\n * @category Decorators\n */\nexport function afterDelete<T>(\n  handler: StandardOperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return after(DBOperations.DELETE, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set after the defined {@link DBOperations.DELETE}\n *\n * @param {AfterOperationHandler<any>} handler The method called upon the operation\n * @param data\n * @param {any[]} [args] Arguments that will be passed in order to the handler method\n *\n * @see after\n *\n * @function afterAny\n *\n * @category Decorators\n */\nexport function afterAny<T>(\n  handler: StandardOperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return after(DBOperations.ALL, handler, data);\n}\n\n/**\n * @summary Defines a behaviour to set on the defined {@link DBOperations}\n *\n * @param {OperationKeys[] | DBOperations} op One of {@link DBOperations}\n * @param {AfterOperationHandler<any>} handler The method called upon the operation\n *\n * ex: handler(...args, ...props.map(p => target[p]))\n *\n * @param data\n * @param args\n * @function after\n *\n * @category Decorators\n */\nexport function after<T>(\n  op: OperationKeys[] = DBOperations.ALL,\n  handler: OperationHandler<any, any, T, any>,\n  data?: T\n) {\n  return operation(OperationKeys.AFTER, op, handler, data);\n}\n\nexport function operation<T>(\n  baseOp: OperationKeys.ON | OperationKeys.AFTER,\n  operation: OperationKeys[] = DBOperations.ALL,\n  handler: OperationHandler<any, any, T, any>,\n  dataToAdd?: T\n) {\n  return (target: object, propertyKey?: any) => {\n    const name = target.constructor.name;\n    const decorators = operation.reduce((accum: any[], op) => {\n      const compoundKey = baseOp + op;\n      let data = Reflect.getMetadata(\n        Operations.key(compoundKey),\n        target,\n        propertyKey\n      );\n      if (!data)\n        data = {\n          operation: op,\n          handlers: {},\n        };\n\n      const handlerKey = Operations.getHandlerName(handler);\n\n      if (\n        !data.handlers[name] ||\n        !data.handlers[name][propertyKey] ||\n        !(handlerKey in data.handlers[name][propertyKey])\n      ) {\n        data.handlers[name] = data.handlers[name] || {};\n        data.handlers[name][propertyKey] =\n          data.handlers[name][propertyKey] || {};\n        data.handlers[name][propertyKey][handlerKey] = {\n          data: dataToAdd,\n        };\n\n        accum.push(\n          handle(compoundKey as OperationKeys, handler),\n          propMetadata(Operations.key(compoundKey), data)\n        );\n      }\n      return accum;\n    }, []);\n    return apply(...decorators)(target, propertyKey);\n  };\n}\n"]}