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loopback-softdelete-mixin4

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A mixin to provide soft deletes by adding a deletedAt attribute for loopback Models

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'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); var _promise = require('babel-runtime/core-js/promise'); var _promise2 = _interopRequireDefault(_promise); var _defineProperty2 = require('babel-runtime/helpers/defineProperty'); var _defineProperty3 = _interopRequireDefault(_defineProperty2); var _extends8 = require('babel-runtime/helpers/extends'); var _extends9 = _interopRequireDefault(_extends8); var _keys = require('babel-runtime/core-js/object/keys'); var _keys2 = _interopRequireDefault(_keys); var _debug2 = require('./debug'); var _debug3 = _interopRequireDefault(_debug2); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } var crypto = require('crypto'); var debug = (0, _debug3.default)(); exports.default = function (Model, _ref) { var _ref$deletedAt = _ref.deletedAt, deletedAt = _ref$deletedAt === undefined ? 'deletedAt' : _ref$deletedAt, _ref$scrub = _ref.scrub, scrub = _ref$scrub === undefined ? false : _ref$scrub, _ref$index = _ref.index, index = _ref$index === undefined ? false : _ref$index, _ref$deletedById = _ref.deletedById, deletedById = _ref$deletedById === undefined ? false : _ref$deletedById, _ref$deleteOp = _ref.deleteOp, deleteOp = _ref$deleteOp === undefined ? false : _ref$deleteOp; debug('SoftDelete mixin for Model %s', Model.modelName); debug('options', { deletedAt: deletedAt, scrub: scrub, index: index }); var properties = Model.definition.properties; var idName = Model.dataSource.idName(Model.modelName); var scrubbed = {}; if (scrub !== false) { var propertiesToScrub = scrub; if (!Array.isArray(propertiesToScrub)) { propertiesToScrub = (0, _keys2.default)(properties).filter(function (prop) { return !properties[prop][idName] && prop !== deletedAt; }); } scrubbed = propertiesToScrub.reduce(function (obj, prop) { return (0, _extends9.default)({}, obj, (0, _defineProperty3.default)({}, prop, null)); }, {}); } Model.defineProperty(deletedAt, { type: Date, required: false, default: null }); if (index) Model.defineProperty('deleteIndex', { type: String, required: true, default: 'null' }); if (deletedById) Model.defineProperty('deletedById', { type: Number, required: false, default: null }); if (deleteOp) Model.defineProperty('deleteOp', { type: String, required: false, default: null }); Model.destroyAll = function softDestroyAll(where, cb) { var _extends3; var deletePromise = index ? Model.updateAll(where, (0, _extends9.default)({}, scrubbed, (_extends3 = {}, (0, _defineProperty3.default)(_extends3, deletedAt, new Date()), (0, _defineProperty3.default)(_extends3, 'deleteIndex', genKey()), _extends3))) : Model.updateAll(where, (0, _extends9.default)({}, scrubbed, (0, _defineProperty3.default)({}, deletedAt, new Date()))); return deletePromise.then(function (result) { return typeof cb === 'function' ? cb(null, result) : result; }).catch(function (error) { return typeof cb === 'function' ? cb(error) : _promise2.default.reject(error); }); }; Model.remove = Model.destroyAll; Model.deleteAll = Model.destroyAll; Model.destroyById = function softDestroyById(id, cb) { var _extends5; var deletePromise = index ? Model.updateAll((0, _defineProperty3.default)({}, idName, id), (0, _extends9.default)({}, scrubbed, (_extends5 = {}, (0, _defineProperty3.default)(_extends5, deletedAt, new Date()), (0, _defineProperty3.default)(_extends5, 'deleteIndex', genKey()), _extends5))) : Model.updateAll((0, _defineProperty3.default)({}, idName, id), (0, _extends9.default)({}, scrubbed, (0, _defineProperty3.default)({}, deletedAt, new Date()))); return deletePromise.then(function (result) { return typeof cb === 'function' ? cb(null, result) : result; }).catch(function (error) { return typeof cb === 'function' ? cb(error) : _promise2.default.reject(error); }); }; Model.removeById = Model.destroyById; Model.deleteById = Model.destroyById; Model.prototype.destroy = function softDestroy(options, cb) { var callback = cb === undefined && typeof options === 'function' ? options : cb; var data = (0, _extends9.default)({}, scrubbed, (0, _defineProperty3.default)({}, deletedAt, new Date())); options = options || {}; options.delete = true; if (index) data.deleteIndex = genKey(); if (deletedById && options.deletedById) data.deletedById = options.deletedById; if (deleteOp && options.deleteOp) data.deleteOp = options.deleteOp; return this.updateAttributes(data, options).then(function (result) { return typeof cb === 'function' ? callback(null, result) : result; }).catch(function (error) { return typeof cb === 'function' ? callback(error) : _promise2.default.reject(error); }); }; Model.prototype.remove = Model.prototype.destroy; Model.prototype.delete = Model.prototype.destroy; // Emulate default scope but with more flexibility. var queryNonDeleted = (0, _defineProperty3.default)({}, deletedAt, null); var _findOrCreate = Model.findOrCreate; Model.findOrCreate = function findOrCreateDeleted() { var query = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}; if (!query.deleted) { if (!query.where || (0, _keys2.default)(query.where).length === 0) { query.where = queryNonDeleted; } else { query.where = { and: [query.where, queryNonDeleted] }; } } for (var _len = arguments.length, rest = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { rest[_key - 1] = arguments[_key]; } return _findOrCreate.call.apply(_findOrCreate, [Model, query].concat(rest)); }; var _find = Model.find; Model.find = function findDeleted() { var query = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}; if (!query.deleted) { if (!query.where || (0, _keys2.default)(query.where).length === 0) { query.where = queryNonDeleted; } else { query.where = { and: [query.where, queryNonDeleted] }; } } for (var _len2 = arguments.length, rest = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) { rest[_key2 - 1] = arguments[_key2]; } return _find.call.apply(_find, [Model, query].concat(rest)); }; var _count = Model.count; Model.count = function countDeleted() { var where = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}; // Because count only receives a 'where', there's nowhere to ask for the deleted entities. var whereNotDeleted = void 0; if (!where || (0, _keys2.default)(where).length === 0) { whereNotDeleted = queryNonDeleted; } else { whereNotDeleted = { and: [where, queryNonDeleted] }; } for (var _len3 = arguments.length, rest = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) { rest[_key3 - 1] = arguments[_key3]; } return _count.call.apply(_count, [Model, whereNotDeleted].concat(rest)); }; var _update = Model.update; Model.update = Model.updateAll = function updateDeleted() { var where = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}; // Because update/updateAll only receives a 'where', there's nowhere to ask for the deleted entities. var whereNotDeleted = void 0; if (!where || (0, _keys2.default)(where).length === 0) { whereNotDeleted = queryNonDeleted; } else { whereNotDeleted = { and: [where, queryNonDeleted] }; } for (var _len4 = arguments.length, rest = Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) { rest[_key4 - 1] = arguments[_key4]; } return _update.call.apply(_update, [Model, whereNotDeleted].concat(rest)); }; if (Model.settings.remoting && Model.settings.remoting.sharedMethods.deleteById !== false && (deletedById || deleteOp)) { Model.disableRemoteMethodByName('deleteById'); Model.remoteMethod('deleteById', { accessType: 'WRITE', isStatic: false, accepts: [{ arg: 'options', type: 'object', http: 'optionsFromRequest' }], returns: { arg: 'data', type: 'object', root: true }, http: { verb: 'delete', path: '/' } }); Model.prototype.deleteById = function () { var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}; if (deletedById) options.deletedById = options.accessToken ? options.accessToken.userId : null; if (deleteOp && options.deletedById) options.deleteOp = 'user'; return this.destroy(options).then(function () { return { count: 1 }; }); }; } }; var genKey = function genKey() { return crypto.createHmac('sha256', Math.random().toString(12).substr(2)).digest('hex').substr(0, 8); }; module.exports = exports['default']; //# 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crypto = require('crypto');\n\nimport _debug from './debug';\nconst debug = _debug();\n\nexport default (Model, { deletedAt = 'deletedAt', scrub = false , index = false, deletedById = false, deleteOp = false}) => {\n  debug('SoftDelete mixin for Model %s', Model.modelName);\n\n  debug('options', { deletedAt, scrub, index });\n\n  const properties = Model.definition.properties;\n  const idName = Model.dataSource.idName(Model.modelName);\n\n  let scrubbed = {};\n  if (scrub !== false) {\n    let propertiesToScrub = scrub;\n    if (!Array.isArray(propertiesToScrub)) {\n      propertiesToScrub = Object.keys(properties)\n        .filter(prop => !properties[prop][idName] && prop !== deletedAt);\n    }\n    scrubbed = propertiesToScrub.reduce((obj, prop) => ({ ...obj, [prop]: null }), {});\n  }\n\n  Model.defineProperty(deletedAt, {type: Date, required: false, default: null});\n  if (index) Model.defineProperty('deleteIndex', { type: String, required: true, default: 'null' });\n  if (deletedById) Model.defineProperty('deletedById', { type: Number, required: false, default: null });\n  if (deleteOp) Model.defineProperty('deleteOp', { type: String, required: false, default: null });\n\n  Model.destroyAll = function softDestroyAll(where, cb) {\n    var deletePromise = index ? Model.updateAll(where, { ...scrubbed, [deletedAt]: new Date(), deleteIndex: genKey() }) :\n      Model.updateAll(where, { ...scrubbed, [deletedAt]: new Date() })\n    \n    return deletePromise\n      .then(result => (typeof cb === 'function') ? cb(null, result) : result)\n      .catch(error => (typeof cb === 'function') ? cb(error) : Promise.reject(error));\n  };\n\n  Model.remove = Model.destroyAll;\n  Model.deleteAll = Model.destroyAll;\n\n  Model.destroyById = function softDestroyById(id, cb) {\n    var deletePromise = index ? Model.updateAll({ [idName]: id }, { ...scrubbed, [deletedAt]: new Date(), deleteIndex: genKey() }) :\n      Model.updateAll({ [idName]: id }, { ...scrubbed, [deletedAt]: new Date() });\n\n    return deletePromise\n      .then(result => (typeof cb === 'function') ? cb(null, result) : result)\n      .catch(error => (typeof cb === 'function') ? cb(error) : Promise.reject(error));\n  };\n\n  Model.removeById = Model.destroyById;\n  Model.deleteById = Model.destroyById;\n\n  Model.prototype.destroy = function softDestroy(options, cb) {\n    const callback = (cb === undefined && typeof options === 'function') ? options : cb;\n    let data = {\n      ...scrubbed, \n      [deletedAt]: new Date()\n    };\n    options = options || {};\n    options.delete = true;\n    if (index) data.deleteIndex = genKey();\n    if (deletedById && options.deletedById) data.deletedById = options.deletedById;\n    if (deleteOp && options.deleteOp) data.deleteOp = options.deleteOp;\n    \n    return this.updateAttributes(data, options)\n      .then(result => (typeof cb === 'function') ? callback(null, result) : result)\n      .catch(error => (typeof cb === 'function') ? callback(error) : Promise.reject(error));\n  };\n\n  Model.prototype.remove = Model.prototype.destroy;\n  Model.prototype.delete = Model.prototype.destroy;\n\n  // Emulate default scope but with more flexibility.\n  const queryNonDeleted = {[deletedAt]: null};\n\n  const _findOrCreate = Model.findOrCreate;\n  Model.findOrCreate = function findOrCreateDeleted(query = {}, ...rest) {\n    if (!query.deleted) {\n      if (!query.where || Object.keys(query.where).length === 0) {\n        query.where = queryNonDeleted;\n      } else {\n        query.where = { and: [ query.where, queryNonDeleted ] };\n      }\n    }\n\n    return _findOrCreate.call(Model, query, ...rest);\n  };\n\n  const _find = Model.find;\n  Model.find = function findDeleted(query = {}, ...rest) {\n    if (!query.deleted) {\n      if (!query.where || Object.keys(query.where).length === 0) {\n        query.where = queryNonDeleted;\n      } else {\n        query.where = { and: [ query.where, queryNonDeleted ] };\n      }\n    }\n\n    return _find.call(Model, query, ...rest);\n  };\n\n  const _count = Model.count;\n  Model.count = function countDeleted(where = {}, ...rest) {\n    // Because count only receives a 'where', there's nowhere to ask for the deleted entities.\n    let whereNotDeleted;\n    if (!where || Object.keys(where).length === 0) {\n      whereNotDeleted = queryNonDeleted;\n    } else {\n      whereNotDeleted = { and: [ where, queryNonDeleted ] };\n    }\n    return _count.call(Model, whereNotDeleted, ...rest);\n  };\n\n  const _update = Model.update;\n  Model.update = Model.updateAll = function updateDeleted(where = {}, ...rest) {\n    // Because update/updateAll only receives a 'where', there's nowhere to ask for the deleted entities.\n    let whereNotDeleted;\n    if (!where || Object.keys(where).length === 0) {\n      whereNotDeleted = queryNonDeleted;\n    } else {\n      whereNotDeleted = { and: [ where, queryNonDeleted ] };\n    }\n    return _update.call(Model, whereNotDeleted, ...rest);\n  };\n\n  if (Model.settings.remoting && Model.settings.remoting.sharedMethods.deleteById !== false && (deletedById || deleteOp)) {\n    Model.disableRemoteMethodByName('deleteById');\n\n    Model.remoteMethod('deleteById', {\n      accessType: 'WRITE',\n      isStatic: false,\n      accepts: [\n        { arg: 'options', type: 'object', http: 'optionsFromRequest' }\n      ],\n      returns: {arg: 'data', type: 'object', root: true},\n      http: {verb: 'delete', path: '/'},\n    });\n\n    Model.prototype.deleteById = function(options = {}) {\n      if (deletedById) options.deletedById = options.accessToken ? options.accessToken.userId : null;\n      if (deleteOp && options.deletedById) options.deleteOp = 'user';\n      return this.destroy(options).then(function() {\n        return { count: 1 }\n      })\n    };\n  }\n};\n\nvar genKey = function() {\n  return crypto.createHmac('sha256', Math.random().toString(12).substr(2)).digest('hex').substr(0, 8);\n};\n"]}