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			799 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			JavaScript
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			799 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			JavaScript
		
	
	
		
			Executable File
		
	
	
	
	
'use strict';
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/**
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 * Module dependencies
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 */
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// Public node modules.
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const _ = require('lodash');
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const Mongoose = require('mongoose').Mongoose;
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const mongooseUtils = require('mongoose/lib/utils');
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// Local helpers.
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const utils = require('./utils/');
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// Strapi helpers for models.
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const { models: utilsModels, logger }  = require('strapi-utils');
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/**
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 * Mongoose hook
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 */
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module.exports = function (strapi) {
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  const hook = {
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    /**
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     * Default options
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     */
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    defaults: {
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      defaultConnection: 'default',
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      host: 'localhost',
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      port: 27017,
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      database: 'strapi',
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      authenticationDatabase: '',
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      ssl: false
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    },
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    /**
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     * Initialize the hook
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     */
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    initialize: cb => {
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      _.forEach(_.pickBy(strapi.config.connections, {connector: 'strapi-mongoose'}), (connection, connectionName) => {
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        const instance = new Mongoose();
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        const { uri, host, port, username, password, database, authenticationDatabase, ssl } = _.defaults(connection.settings, strapi.config.hook.settings.mongoose);
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        // Connect to mongo database
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        const connectOptions = {}
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        if (!_.isEmpty(username)) {
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          connectOptions.user = username
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          if (!_.isEmpty(password)) {
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            connectOptions.pass = password
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          }
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        }
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        if (!_.isEmpty(authenticationDatabase)) {
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          connectOptions.authSource = authenticationDatabase;
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        }
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        connectOptions.ssl = ssl === true || ssl === 'true';
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        instance.connect(uri || `mongodb://${host}:${port}/${database}`, connectOptions);
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        // Handle error
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        instance.connection.on('error', error => {
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          if (error.message.indexOf(`:${port}`)) {
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            return cb('Make sure your MongoDB database is running...');
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          }
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          cb(error);
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        });
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        // Handle success
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        instance.connection.on('open', () => {
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          const mountModels = (models, target, plugin = false) => {
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            if (!target) return;
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            const loadedAttributes = _.after(_.size(models), () => {
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              _.forEach(models, (definition, model) => {
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                try {
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                  let collection = strapi.config.hook.settings.mongoose.collections[mongooseUtils.toCollectionName(definition.globalName)];
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                  // Set the default values to model settings.
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                  _.defaults(definition, {
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                    primaryKey: '_id'
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                  });
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                  // Initialize lifecycle callbacks.
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                  const preLifecycle = {
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                    validate: 'beforeCreate',
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                    findOneAndUpdate: 'beforeUpdate',
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                    findOneAndRemove: 'beforeDestroy',
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                    remove: 'beforeDestroy',
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                    update: 'beforeUpdate',
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                    find: 'beforeFetchAll',
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                    findOne: 'beforeFetch',
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                    save: 'beforeSave'
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                  };
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                  /*
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                    Override populate path for polymorphic association.
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                    It allows us to make Upload.find().populate('related')
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                    instead of Upload.find().populate('related.item')
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                  */
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                  const morphAssociations = definition.associations.filter(association => association.nature.toLowerCase().indexOf('morph') !== -1);
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                  if (morphAssociations.length > 0) {
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                    morphAssociations.forEach(association => {
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                      Object.keys(preLifecycle)
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                        .filter(key => key.indexOf('find') !== -1)
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                        .forEach(key => {
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                          collection.schema.pre(key,  function (next) {
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                            if (this._mongooseOptions.populate && this._mongooseOptions.populate[association.alias]) {
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                              if (association.nature === 'oneToManyMorph' || association.nature === 'manyToManyMorph') {
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                                this._mongooseOptions.populate[association.alias].match = {
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                                  [`${association.via}.${association.filter}`]: association.alias,
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                                  [`${association.via}.kind`]: definition.globalId
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                                }
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                                // Select last related to an entity.
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                                this._mongooseOptions.populate[association.alias].options = {
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                                  sort: '-createdAt'
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                                }
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                              } else {
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                                this._mongooseOptions.populate[association.alias].path = `${association.alias}.ref`;
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                              }
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                            }
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                            next();
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                          });
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                        });
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                    });
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                  }
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                  _.forEach(preLifecycle, (fn, key) => {
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                    if (_.isFunction(target[model.toLowerCase()][fn])) {
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                      collection.schema.pre(key, function (next) {
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                        target[model.toLowerCase()][fn](this).then(next).catch(err => strapi.log.error(err));
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                      });
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                    }
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                  });
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                  const postLifecycle = {
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                    validate: 'afterCreate',
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                    findOneAndRemove: 'afterDestroy',
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                    remove: 'afterDestroy',
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                    update: 'afterUpdate',
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                    find: 'afterFetchAll',
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                    findOne: 'afterFetch',
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                    save: 'afterSave'
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                  };
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                  // Mongoose doesn't allow post 'remove' event on model.
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                  // See https://github.com/Automattic/mongoose/issues/3054
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                  _.forEach(postLifecycle, (fn, key) => {
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                    if (_.isFunction(target[model.toLowerCase()][fn])) {
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                      collection.schema.post(key, function (doc, next) {
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                        target[model.toLowerCase()][fn](this, doc).then(next).catch(err => strapi.log.error(err))
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                      });
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                    }
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                  });
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                  // Add virtual key to provide populate and reverse populate
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                  _.forEach(_.pickBy(definition.loadedModel, model => {
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                    return model.type === 'virtual';
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                  }), (value, key) => {
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                    collection.schema.virtual(key.replace('_v', ''), {
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                      ref: value.ref,
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                      localField: '_id',
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                      foreignField: value.via,
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                      justOne: value.justOne || false
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                    });
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                  });
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                  collection.schema.set('timestamps', _.get(definition, 'options.timestamps') === true);
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                  collection.schema.options.toObject = collection.schema.options.toJSON = {
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                    virtuals: true,
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                    transform: function (doc, returned, opts) {
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                      morphAssociations.forEach(association => {
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                        if (Array.isArray(returned[association.alias]) && returned[association.alias].length > 0) {
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                          // Reformat data by bypassing the many-to-many relationship.
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                          switch (association.nature) {
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                            case 'oneMorphToOne':
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                              returned[association.alias] = returned[association.alias][0].ref;
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                              break;
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                            case 'manyMorphToMany':
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                            case 'manyMorphToOne':
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                              returned[association.alias] = returned[association.alias].map(obj => obj.ref);
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                              break;
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                            default:
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                          }
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                        }
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                      });
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                    }
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                  };
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                  if (!plugin) {
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                    global[definition.globalName] = instance.model(definition.globalId, collection.schema, definition.collectionName);
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                  } else {
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                    instance.model(definition.globalId, collection.schema, definition.collectionName);
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                  }
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                  // Expose ORM functions through the `target` object.
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                  target[model] = _.assign(instance.model(definition.globalName), target[model]);
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                  // Push model to strapi global variables.
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                  collection = instance.model(definition.globalName, collection.schema);
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                  // Push attributes to be aware of model schema.
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                  target[model]._attributes = definition.attributes;
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                } catch (err) {
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                  strapi.log.error('Impossible to register the `' + model + '` model.');
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                  strapi.log.error(err);
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                  strapi.stop();
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                }
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              });
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            });
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            // Parse every authenticated model.
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            _.forEach(models, (definition, model) => {
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              definition.globalName = _.upperFirst(_.camelCase(definition.globalId));
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              // Make sure the model has a connection.
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              // If not, use the default connection.
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              if (_.isEmpty(definition.connection)) {
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                definition.connection = strapi.config.currentEnvironment.database.defaultConnection;
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              }
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              // Make sure this connection exists.
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              if (!_.has(strapi.config.connections, definition.connection)) {
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                strapi.log.error('The connection `' + definition.connection + '` specified in the `' + model + '` model does not exist.');
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                strapi.stop();
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              }
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              // Add some informations about ORM & client connection
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              definition.orm = 'mongoose';
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              definition.client = _.get(strapi.config.connections[definition.connection], 'client');
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              definition.associations = [];
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              // Register the final model for Mongoose.
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              definition.loadedModel = _.cloneDeep(definition.attributes);
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              // Initialize the global variable with the
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              // capitalized model name.
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              if (!plugin) {
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                global[definition.globalName] = {};
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              }
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              if (_.isEmpty(definition.attributes)) {
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                // Generate empty schema
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                _.set(strapi.config.hook.settings.mongoose, 'collections.' + mongooseUtils.toCollectionName(definition.globalName) + '.schema', new instance.Schema({}));
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                return loadedAttributes();
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              }
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              // Call this callback function after we are done parsing
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              // all attributes for relationships-- see below.
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              const done = _.after(_.size(definition.attributes), () => {
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                // Generate schema without virtual populate
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                const schema = new instance.Schema(_.omitBy(definition.loadedModel, model => {
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                  return model.type === 'virtual';
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                }));
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                _.set(strapi.config.hook.settings.mongoose, 'collections.' + mongooseUtils.toCollectionName(definition.globalName) + '.schema', schema);
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                loadedAttributes();
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              });
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              // Add every relationships to the loaded model for Bookshelf.
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              // Basic attributes don't need this-- only relations.
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              _.forEach(definition.attributes, (details, name) => {
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                const verbose = _.get(utilsModels.getNature(details, name, undefined, model.toLowerCase()), 'verbose') || '';
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                // Build associations key
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                utilsModels.defineAssociations(model.toLowerCase(), definition, details, name);
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                if (_.isEmpty(verbose)) {
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                  definition.loadedModel[name].type = utils(instance).convertType(details.type);
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                }
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                switch (verbose) {
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                  case 'hasOne': {
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                    const ref = details.plugin ? strapi.plugins[details.plugin].models[details.model].globalId : strapi.models[details.model].globalId;
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                    definition.loadedModel[name] = {
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                      type: instance.Schema.Types.ObjectId,
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                      ref
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                    };
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                    break;
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                  }
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                  case 'hasMany': {
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                    const FK = _.find(definition.associations, {alias: name});
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                    const ref = details.plugin ? strapi.plugins[details.plugin].models[details.collection].globalId : strapi.models[details.collection].globalId;
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                    if (FK) {
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                      definition.loadedModel[name] = {
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                        type: 'virtual',
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                        ref,
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                        via: FK.via,
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                        justOne: false
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                      };
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                      // Set this info to be able to see if this field is a real database's field.
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                      details.isVirtual = true;
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                    } else {
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                      definition.loadedModel[name] = [{
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                        type: instance.Schema.Types.ObjectId,
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                        ref
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                      }];
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                    }
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                    break;
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                  }
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                  case 'belongsTo': {
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                    const FK = _.find(definition.associations, {alias: name});
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                    const ref = details.plugin ? strapi.plugins[details.plugin].models[details.model].globalId : strapi.models[details.model].globalId;
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                    if (FK && FK.nature !== 'oneToOne' && FK.nature !== 'manyToOne' && FK.nature !== 'oneWay' && FK.nature !== 'oneToMorph') {
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                      definition.loadedModel[name] = {
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                        type: 'virtual',
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                        ref,
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                        via: FK.via,
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                        justOne: true
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                      };
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                      // Set this info to be able to see if this field is a real database's field.
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                      details.isVirtual = true;
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                    } else {
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                      definition.loadedModel[name] = {
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                        type: instance.Schema.Types.ObjectId,
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                        ref
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                      };
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                    }
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                    break;
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                  }
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                  case 'belongsToMany': {
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                    const FK = _.find(definition.associations, {alias: name});
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                    const ref = details.plugin ? strapi.plugins[details.plugin].models[details.collection].globalId : strapi.models[details.collection].globalId;
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                    // One-side of the relationship has to be a virtual field to be bidirectional.
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                    if ((FK && _.isUndefined(FK.via)) || details.dominant !== true) {
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                      definition.loadedModel[name] = {
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                        type: 'virtual',
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                        ref,
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                        via: FK.via
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                      };
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                      // Set this info to be able to see if this field is a real database's field.
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                      details.isVirtual = true;
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                    } else {
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                      definition.loadedModel[name] = [{
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                        type: instance.Schema.Types.ObjectId,
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                        ref
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                      }];
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						||
                    }
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						||
                    break;
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                  }
 | 
						||
                  case 'morphOne': {
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                    const FK = _.find(definition.associations, {alias: name});
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                    const ref = details.plugin ? strapi.plugins[details.plugin].models[details.model].globalId : strapi.models[details.model].globalId;
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						||
 | 
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                    definition.loadedModel[name] = {
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                      type: 'virtual',
 | 
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                      ref,
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                      via: `${FK.via}.ref`,
 | 
						||
                      justOne: true
 | 
						||
                    };
 | 
						||
 | 
						||
                    // Set this info to be able to see if this field is a real database's field.
 | 
						||
                    details.isVirtual = true;
 | 
						||
                    break;
 | 
						||
                  }
 | 
						||
                  case 'morphMany': {
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						||
                    const FK = _.find(definition.associations, {alias: name});
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                    const ref = details.plugin ? strapi.plugins[details.plugin].models[details.collection].globalId : strapi.models[details.collection].globalId;
 | 
						||
 | 
						||
                    definition.loadedModel[name] = {
 | 
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                      type: 'virtual',
 | 
						||
                      ref,
 | 
						||
                      via: `${FK.via}.ref`
 | 
						||
                    };
 | 
						||
 | 
						||
                    // Set this info to be able to see if this field is a real database's field.
 | 
						||
                    details.isVirtual = true;
 | 
						||
                    break;
 | 
						||
                  }
 | 
						||
                  case 'belongsToMorph': {
 | 
						||
                    definition.loadedModel[name] = {
 | 
						||
                      kind: String,
 | 
						||
                      [details.filter]: String,
 | 
						||
                      ref: {
 | 
						||
                        type: instance.Schema.Types.ObjectId,
 | 
						||
                        refPath: `${name}.kind`
 | 
						||
                      }
 | 
						||
                    };
 | 
						||
                    break;
 | 
						||
                  }
 | 
						||
                  case 'belongsToManyMorph': {
 | 
						||
                    definition.loadedModel[name] = [{
 | 
						||
                      kind: String,
 | 
						||
                      [details.filter]: String,
 | 
						||
                      ref: {
 | 
						||
                        type: instance.Schema.Types.ObjectId,
 | 
						||
                        refPath: `${name}.kind`
 | 
						||
                      }
 | 
						||
                    }];
 | 
						||
                    break;
 | 
						||
                  }
 | 
						||
                  default:
 | 
						||
                    break;
 | 
						||
                }
 | 
						||
 | 
						||
                done();
 | 
						||
              });
 | 
						||
            });
 | 
						||
          };
 | 
						||
 | 
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          // Mount `./api` models.
 | 
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          mountModels(_.pickBy(strapi.models, { connection: connectionName }), strapi.models);
 | 
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 | 
						||
          // Mount `./plugins` models.
 | 
						||
          _.forEach(strapi.plugins, (plugin, name) => {
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            mountModels(_.pickBy(strapi.plugins[name].models, { connection: connectionName }), plugin.models, name);
 | 
						||
          });
 | 
						||
 | 
						||
          cb();
 | 
						||
        });
 | 
						||
      });
 | 
						||
    },
 | 
						||
 | 
						||
    getQueryParams: (value, type, key) => {
 | 
						||
      const result = {};
 | 
						||
 | 
						||
      switch (type) {
 | 
						||
        case '=':
 | 
						||
          result.key = `where.${key}`;
 | 
						||
          result.value = value;
 | 
						||
          break;
 | 
						||
        case '_ne':
 | 
						||
          result.key = `where.${key}.$ne`;
 | 
						||
          result.value = value;
 | 
						||
          break;
 | 
						||
        case '_lt':
 | 
						||
          result.key = `where.${key}.$lt`;
 | 
						||
          result.value = value;
 | 
						||
          break;
 | 
						||
        case '_gt':
 | 
						||
          result.key = `where.${key}.$gt`;
 | 
						||
          result.value = value;
 | 
						||
          break;
 | 
						||
        case '_lte':
 | 
						||
          result.key = `where.${key}.$lte`;
 | 
						||
          result.value = value;
 | 
						||
          break;
 | 
						||
        case '_gte':
 | 
						||
          result.key = `where.${key}.$gte`;
 | 
						||
          result.value = value;
 | 
						||
          break;
 | 
						||
        case '_sort':
 | 
						||
          result.key = `sort`;
 | 
						||
          result.value = (_.toLower(value) === 'desc') ? '-' : '';
 | 
						||
          result.value += key;
 | 
						||
          break;
 | 
						||
        case '_start':
 | 
						||
          result.key = `start`;
 | 
						||
          result.value = parseFloat(value);
 | 
						||
          break;
 | 
						||
        case '_limit':
 | 
						||
          result.key = `limit`;
 | 
						||
          result.value = parseFloat(value);
 | 
						||
          break;
 | 
						||
        case '_contains':
 | 
						||
          result.key = `where.${key}`;
 | 
						||
          result.value = {
 | 
						||
            $regex: value,
 | 
						||
            $options: 'i',
 | 
						||
          };
 | 
						||
          break;
 | 
						||
        case '_containss':
 | 
						||
          result.key = `where.${key}.$regex`;
 | 
						||
          result.value = value;
 | 
						||
          break;
 | 
						||
        default:
 | 
						||
          result = undefined;
 | 
						||
      }
 | 
						||
 | 
						||
      return result;
 | 
						||
    },
 | 
						||
 | 
						||
    manageRelations: async function (model, params, source) {
 | 
						||
      const models = _.assign(_.clone(strapi.models), Object.keys(strapi.plugins).reduce((acc, current) => {
 | 
						||
        _.assign(acc, strapi.plugins[current].models);
 | 
						||
        return acc;
 | 
						||
      }, {}));
 | 
						||
 | 
						||
      const Model = models[model];
 | 
						||
 | 
						||
      const virtualFields = [];
 | 
						||
      const response = await Model
 | 
						||
        .findOne({
 | 
						||
          [Model.primaryKey]: params._id || params.id
 | 
						||
        })
 | 
						||
        .populate(_.keys(_.groupBy(_.reject(Model.associations, {autoPopulate: false}), 'alias')).join(' '));
 | 
						||
 | 
						||
      // Only update fields which are on this document.
 | 
						||
      const values = params.parseRelationships === false ? params.values : Object.keys(JSON.parse(JSON.stringify(params.values))).reduce((acc, current) => {
 | 
						||
        const association = Model.associations.filter(x => x.alias === current)[0];
 | 
						||
        const details = Model._attributes[current];
 | 
						||
 | 
						||
        if (_.get(Model._attributes, `${current}.isVirtual`) !== true && _.isUndefined(association)) {
 | 
						||
          acc[current] = params.values[current];
 | 
						||
        } else {
 | 
						||
          switch (association.nature) {
 | 
						||
            case 'oneWay':
 | 
						||
              acc[current] = _.get(params.values[current], this.primaryKey, params.values[current]) || null;
 | 
						||
 | 
						||
              break;
 | 
						||
            case 'oneToOne':
 | 
						||
              if (response[current] !== params.values[current]) {
 | 
						||
                const value = _.isNull(params.values[current]) ? response[current] : params.values;
 | 
						||
                const recordId = _.isNull(params.values[current]) ? value[Model.primaryKey] || value.id || value._id : value[current];
 | 
						||
 | 
						||
                if (response[current] && _.isObject(response[current]) && response[current][Model.primaryKey] !== value[current]) {
 | 
						||
                  virtualFields.push(
 | 
						||
                    this.manageRelations(details.model || details.collection, {
 | 
						||
                      _id: response[current][Model.primaryKey],
 | 
						||
                      values: {
 | 
						||
                        [details.via]: null
 | 
						||
                      },
 | 
						||
                      parseRelationships: false
 | 
						||
                    })
 | 
						||
                  );
 | 
						||
                }
 | 
						||
 | 
						||
                // Remove previous relationship asynchronously if it exists.
 | 
						||
                virtualFields.push(
 | 
						||
                  models[details.model || details.collection]
 | 
						||
                    .findOne({ id : recordId })
 | 
						||
                    .populate(_.keys(_.groupBy(_.reject(models[details.model || details.collection].associations, {autoPopulate: false}), 'alias')).join(' '))
 | 
						||
                    .then(record => {
 | 
						||
                      if (record && _.isObject(record[details.via]) && record[details.via][current] !== value[current]) {
 | 
						||
                        return this.manageRelations(details.model || details.collection, {
 | 
						||
                          id: record[details.via][Model.primaryKey] || record[details.via].id,
 | 
						||
                          values: {
 | 
						||
                            [current]: null
 | 
						||
                          },
 | 
						||
                          parseRelationships: false
 | 
						||
                        });
 | 
						||
                      }
 | 
						||
 | 
						||
                      return Promise.resolve();
 | 
						||
                    })
 | 
						||
                );
 | 
						||
 | 
						||
                // Update the record on the other side.
 | 
						||
                // When params.values[current] is null this means that we are removing the relation.
 | 
						||
                virtualFields.push(this.manageRelations(details.model || details.collection, {
 | 
						||
                  id: recordId,
 | 
						||
                  values: {
 | 
						||
                    [details.via]: _.isNull(params.values[current]) ? null : value[Model.primaryKey] || params.id || params._id || value.id || value._id
 | 
						||
                  },
 | 
						||
                  parseRelationships: false
 | 
						||
                }));
 | 
						||
 | 
						||
                acc[current] = _.isNull(params.values[current]) ? null : value[current];
 | 
						||
              }
 | 
						||
 | 
						||
              break;
 | 
						||
            case 'oneToMany':
 | 
						||
            case 'manyToOne':
 | 
						||
            case 'manyToMany':
 | 
						||
              if (details.dominant === true) {
 | 
						||
                acc[current] = params.values[current];
 | 
						||
              } else if (response[current] && _.isArray(response[current]) && current !== 'id') {
 | 
						||
                // Records to add in the relation.
 | 
						||
                const toAdd = _.differenceWith(params.values[current], response[current], (a, b) =>
 | 
						||
                  ((typeof a === 'string') ? a : a[Model.primaryKey].toString()) === b[Model.primaryKey].toString()
 | 
						||
                );
 | 
						||
                // Records to remove in the relation.
 | 
						||
                const toRemove = _.differenceWith(response[current], params.values[current], (a, b) =>
 | 
						||
                  a[Model.primaryKey].toString() === ((typeof b === 'string') ? b : b[Model.primaryKey].toString())
 | 
						||
                )
 | 
						||
                  .filter(x => toAdd.find(y => x.id === y.id) === undefined);
 | 
						||
 | 
						||
                // Push the work into the flow process.
 | 
						||
                toAdd.forEach(value => {
 | 
						||
                  value = (typeof value === 'string') ? { _id: value } : value;
 | 
						||
 | 
						||
                  if (association.nature === 'manyToMany' && !_.isArray(params.values[Model.primaryKey])) {
 | 
						||
                    value[details.via] = (value[details.via] || []).concat([response[Model.primaryKey]]);
 | 
						||
                  } else {
 | 
						||
                    value[details.via] = params[Model.primaryKey];
 | 
						||
                  }
 | 
						||
 | 
						||
                  virtualFields.push(this.manageRelations(details.model || details.collection, {
 | 
						||
                    id: value[Model.primaryKey] || value.id || value._id,
 | 
						||
                    values: value,
 | 
						||
                    foreignKey: current
 | 
						||
                  }));
 | 
						||
                });
 | 
						||
 | 
						||
                toRemove.forEach(value => {
 | 
						||
                  value = (typeof value === 'string') ? { _id: value } : value;
 | 
						||
 | 
						||
                  if (association.nature === 'manyToMany' && !_.isArray(params.values[Model.primaryKey])) {
 | 
						||
                    value[details.via] = value[details.via].filter(x => x.toString() !== response[Model.primaryKey].toString());
 | 
						||
                  } else {
 | 
						||
                    value[details.via] = null;
 | 
						||
                  }
 | 
						||
 | 
						||
                  virtualFields.push(this.manageRelations(details.model || details.collection, {
 | 
						||
                    id: value[Model.primaryKey] || value.id || value._id,
 | 
						||
                    values: value,
 | 
						||
                    foreignKey: current
 | 
						||
                  }));
 | 
						||
                });
 | 
						||
              } else if (_.get(Model._attributes, `${current}.isVirtual`) !== true) {
 | 
						||
                acc[current] = params.values[current];
 | 
						||
              }
 | 
						||
 | 
						||
              break;
 | 
						||
            case 'manyMorphToMany':
 | 
						||
            case 'manyMorphToOne':
 | 
						||
              // Update the relational array.
 | 
						||
              acc[current] = params.values[current].map(obj => {
 | 
						||
                const globalId = obj.source && obj.source !== 'content-manager' ?
 | 
						||
                  strapi.plugins[obj.source].models[obj.ref].globalId:
 | 
						||
                  strapi.models[obj.ref].globalId;
 | 
						||
 | 
						||
                // Define the object stored in database.
 | 
						||
                // The shape is this object is defined by the strapi-mongoose connector.
 | 
						||
                return {
 | 
						||
                  ref: obj.refId,
 | 
						||
                  kind: globalId,
 | 
						||
                  [association.filter]: obj.field
 | 
						||
                }
 | 
						||
              });
 | 
						||
              break;
 | 
						||
            case 'oneToManyMorph':
 | 
						||
            case 'manyToManyMorph':
 | 
						||
              const transformToArrayID = (array) => {
 | 
						||
                if (_.isArray(array)) {
 | 
						||
                  return array.map(value => {
 | 
						||
                    if (_.isObject(value)) {
 | 
						||
                      return value._id || value.id;
 | 
						||
                    }
 | 
						||
 | 
						||
                    return value;
 | 
						||
                  })
 | 
						||
                }
 | 
						||
 | 
						||
                if (association.type === 'model') {
 | 
						||
                  return _.isEmpty(array) ? [] : transformToArrayID([array]);
 | 
						||
                }
 | 
						||
 | 
						||
                return [];
 | 
						||
              };
 | 
						||
 | 
						||
              // Compare array of ID to find deleted files.
 | 
						||
              const currentValue = transformToArrayID(response[current]).map(id => id.toString());
 | 
						||
              const storedValue = transformToArrayID(params.values[current]).map(id => id.toString());
 | 
						||
 | 
						||
              const toAdd = _.difference(storedValue, currentValue);
 | 
						||
              const toRemove = _.difference(currentValue, storedValue);
 | 
						||
 | 
						||
              // Remove relations in the other side.
 | 
						||
              toAdd.forEach(id => {
 | 
						||
                virtualFields.push(this.addRelationMorph(details.model || details.collection, {
 | 
						||
                  id,
 | 
						||
                  alias: association.via,
 | 
						||
                  ref: Model.globalId,
 | 
						||
                  refId: response._id,
 | 
						||
                  field: association.alias
 | 
						||
                }, details.plugin));
 | 
						||
              });
 | 
						||
 | 
						||
              // Remove relations in the other side.
 | 
						||
              toRemove.forEach(id => {
 | 
						||
                virtualFields.push(this.removeRelationMorph(details.model || details.collection, {
 | 
						||
                  id,
 | 
						||
                  alias: association.via,
 | 
						||
                  ref: Model.globalId,
 | 
						||
                  refId: response._id,
 | 
						||
                  field: association.alias
 | 
						||
                }, details.plugin));
 | 
						||
              });
 | 
						||
              break;
 | 
						||
            case 'oneMorphToOne':
 | 
						||
            case 'oneMorphToMany':
 | 
						||
              break;
 | 
						||
            default:
 | 
						||
          }
 | 
						||
        }
 | 
						||
 | 
						||
        return acc;
 | 
						||
      }, {});
 | 
						||
 | 
						||
      virtualFields.push(Model
 | 
						||
        .update({
 | 
						||
          [Model.primaryKey]: params[Model.primaryKey] || params.id
 | 
						||
        }, values, {
 | 
						||
          strict: false
 | 
						||
        }));
 | 
						||
 | 
						||
      // Update virtuals fields.
 | 
						||
      const process = await Promise.all(virtualFields);
 | 
						||
 | 
						||
      return process[process.length - 1];
 | 
						||
    },
 | 
						||
 | 
						||
    addRelationMorph: async function (model, params, source) {
 | 
						||
      const models = _.assign(_.clone(strapi.models), Object.keys(strapi.plugins).reduce((acc, current) => {
 | 
						||
        _.assign(acc, strapi.plugins[current].models);
 | 
						||
        return acc;
 | 
						||
      }, {}));
 | 
						||
 | 
						||
      const Model = models[model];
 | 
						||
      /*
 | 
						||
        TODO:
 | 
						||
        Test this part because it has been coded during the development of the upload feature.
 | 
						||
        However the upload doesn't need this method. It only uses the `removeRelationMorph`.
 | 
						||
      */
 | 
						||
 | 
						||
      const entry = await Model.findOne({
 | 
						||
        [Model.primaryKey]: params.id
 | 
						||
      });
 | 
						||
      const value = entry[params.alias] || [];
 | 
						||
 | 
						||
      // Retrieve association.
 | 
						||
      const association = Model.associations.find(association => association.via === params.alias)[0];
 | 
						||
 | 
						||
      if (!association) {
 | 
						||
        throw Error(`Impossible to create relationship with ${params.ref} (${params.refId})`);
 | 
						||
      }
 | 
						||
 | 
						||
      // Resolve if the association is already existing.
 | 
						||
      const isExisting = entry[params.alias].find(obj => {
 | 
						||
        if (obj.kind === params.ref && obj.ref.toString() === params.refId.toString() && obj.field === params.field) {
 | 
						||
          return true;
 | 
						||
        }
 | 
						||
 | 
						||
        return false;
 | 
						||
      });
 | 
						||
 | 
						||
      // Avoid duplicate.
 | 
						||
      if (isExisting) {
 | 
						||
        return Promise.resolve();
 | 
						||
      }
 | 
						||
 | 
						||
      // Push new relation to the association array.
 | 
						||
      value.push({
 | 
						||
        ref: params.refId,
 | 
						||
        kind: params.ref,
 | 
						||
        field: association.filter
 | 
						||
      });
 | 
						||
 | 
						||
      entry[params.alias] = value;
 | 
						||
 | 
						||
      return Model.update({
 | 
						||
        [Model.primaryKey]: params.id
 | 
						||
      }, entry, {
 | 
						||
        strict: false
 | 
						||
      });
 | 
						||
    },
 | 
						||
 | 
						||
    removeRelationMorph: async function (model, params, source) {
 | 
						||
      const models = _.assign(_.clone(strapi.models), Object.keys(strapi.plugins).reduce((acc, current) => {
 | 
						||
        _.assign(acc, strapi.plugins[current].models);
 | 
						||
        return acc;
 | 
						||
      }, {}));
 | 
						||
 | 
						||
      const Model = models[model];
 | 
						||
 | 
						||
      const entry = await Model.findOne({
 | 
						||
        [Model.primaryKey]: params.id
 | 
						||
      });
 | 
						||
 | 
						||
      // Filter the association array and remove the association.
 | 
						||
      entry[params.alias] = entry[params.alias].filter(obj => {
 | 
						||
        if (obj.kind === params.ref && obj.ref.toString() === params.refId.toString() && obj.field === params.field) {
 | 
						||
          return false;
 | 
						||
        }
 | 
						||
 | 
						||
        return true;
 | 
						||
      });
 | 
						||
 | 
						||
      return Model.update({
 | 
						||
        [Model.primaryKey]: params.id
 | 
						||
      }, entry, {
 | 
						||
        strict: false
 | 
						||
      });
 | 
						||
    }
 | 
						||
  };
 | 
						||
 | 
						||
  return hook;
 | 
						||
};
 |