mirror of https://github.com/TryGhost/Ghost.git
924 lines
37 KiB
JavaScript
924 lines
37 KiB
JavaScript
// # Post Model
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const _ = require('lodash');
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const uuid = require('uuid');
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const moment = require('moment');
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const Promise = require('bluebird');
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const sequence = require('../lib/promise/sequence');
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const common = require('../lib/common');
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const htmlToText = require('html-to-text');
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const ghostBookshelf = require('./base');
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const config = require('../config');
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const converters = require('../lib/mobiledoc/converters');
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const relations = require('./relations');
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const MOBILEDOC_REVISIONS_COUNT = 10;
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const ALL_STATUSES = ['published', 'draft', 'scheduled'];
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let Post;
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let Posts;
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Post = ghostBookshelf.Model.extend({
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tableName: 'posts',
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/**
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* @NOTE
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*
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* We define the defaults on the schema (db) and model level.
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*
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* Why?
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* - when you insert a resource, Knex does only return the id of the created resource
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* - see https://knexjs.org/#Builder-insert
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* - that means `defaultTo` is a pure database configuration (!)
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* - Bookshelf just returns the model values which you have asked Bookshelf to insert
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* - it can't return the `defaultTo` value from the schema/db level
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* - but the db defaults defined in the schema are saved in the database correctly
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* - `models.Post.add` always does to operations:
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* 1. add
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* 2. fetch (this ensures we fetch the whole resource from the database)
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* - that means we have to apply the defaults on the model layer to ensure a complete field set
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* 1. any connected logic in our model hooks e.g. beforeSave
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* 2. model events e.g. "post.published" are using the inserted resource, not the fetched resource
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*/
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defaults: function defaults() {
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return {
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uuid: uuid.v4(),
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status: 'draft',
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featured: false,
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page: false,
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visibility: 'public'
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};
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},
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relationships: ['tags', 'authors', 'mobiledoc_revisions'],
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// NOTE: look up object, not super nice, but was easy to implement
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relationshipBelongsTo: {
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tags: 'tags',
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authors: 'users'
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},
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/**
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* The base model keeps only the columns, which are defined in the schema.
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* We have to add the relations on top, otherwise bookshelf-relations
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* has no access to the nested relations, which should be updated.
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*/
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permittedAttributes: function permittedAttributes() {
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let filteredKeys = ghostBookshelf.Model.prototype.permittedAttributes.apply(this, arguments);
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this.relationships.forEach((key) => {
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filteredKeys.push(key);
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});
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return filteredKeys;
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},
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emitChange: function emitChange(event, options = {}) {
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let eventToTrigger;
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let resourceType = this.get('page') ? 'page' : 'post';
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if (options.usePreviousAttribute) {
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resourceType = this.previous('page') ? 'page' : 'post';
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}
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eventToTrigger = resourceType + '.' + event;
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ghostBookshelf.Model.prototype.emitChange.bind(this)(this, eventToTrigger, options);
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},
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/**
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* We update the tags after the Post was inserted.
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* We update the tags before the Post was updated, see `onSaving` event.
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* `onCreated` is called before `onSaved`.
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*
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* `onSaved` is the last event in the line - triggered for updating or inserting data.
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* bookshelf-relations listens on `created` + `updated`.
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* We ensure that we are catching the event after bookshelf relations.
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*/
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onSaved: function onSaved(model, response, options) {
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ghostBookshelf.Model.prototype.onSaved.apply(this, arguments);
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if (options.method !== 'insert') {
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return;
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}
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var status = model.get('status');
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model.emitChange('added', options);
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if (['published', 'scheduled'].indexOf(status) !== -1) {
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model.emitChange(status, options);
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}
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},
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onUpdated: function onUpdated(model, attrs, options) {
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ghostBookshelf.Model.prototype.onUpdated.apply(this, arguments);
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model.statusChanging = model.get('status') !== model.previous('status');
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model.isPublished = model.get('status') === 'published';
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model.isScheduled = model.get('status') === 'scheduled';
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model.wasPublished = model.previous('status') === 'published';
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model.wasScheduled = model.previous('status') === 'scheduled';
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model.resourceTypeChanging = model.get('page') !== model.previous('page');
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model.publishedAtHasChanged = model.hasDateChanged('published_at');
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model.needsReschedule = model.publishedAtHasChanged && model.isScheduled;
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// Handle added and deleted for post -> page or page -> post
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if (model.resourceTypeChanging) {
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if (model.wasPublished) {
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model.emitChange('unpublished', Object.assign({usePreviousAttribute: true}, options));
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}
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if (model.wasScheduled) {
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model.emitChange('unscheduled', Object.assign({usePreviousAttribute: true}, options));
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}
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model.emitChange('deleted', Object.assign({usePreviousAttribute: true}, options));
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model.emitChange('added', options);
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if (model.isPublished) {
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model.emitChange('published', options);
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}
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if (model.isScheduled) {
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model.emitChange('scheduled', options);
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}
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} else {
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if (model.statusChanging) {
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// CASE: was published before and is now e.q. draft or scheduled
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if (model.wasPublished) {
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model.emitChange('unpublished', options);
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}
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// CASE: was draft or scheduled before and is now e.q. published
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if (model.isPublished) {
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model.emitChange('published', options);
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}
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// CASE: was draft or published before and is now e.q. scheduled
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if (model.isScheduled) {
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model.emitChange('scheduled', options);
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}
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// CASE: from scheduled to something
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if (model.wasScheduled && !model.isScheduled && !model.isPublished) {
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model.emitChange('unscheduled', options);
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}
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} else {
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if (model.isPublished) {
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model.emitChange('published.edited', options);
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}
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if (model.needsReschedule) {
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model.emitChange('rescheduled', options);
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}
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}
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// Fire edited if this wasn't a change between resourceType
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model.emitChange('edited', options);
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}
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if (model.statusChanging && (model.isPublished || model.wasPublished)) {
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this.handleStatusForAttachedModels(model, options);
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}
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},
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onDestroyed: function onDestroyed(model, options) {
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ghostBookshelf.Model.prototype.onDestroyed.apply(this, arguments);
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if (model.previous('status') === 'published') {
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model.emitChange('unpublished', Object.assign({usePreviousAttribute: true}, options));
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}
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model.emitChange('deleted', Object.assign({usePreviousAttribute: true}, options));
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},
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onDestroying: function onDestroyed(model) {
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ghostBookshelf.Model.prototype.onDestroying.apply(this, arguments);
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this.handleAttachedModels(model);
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},
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handleAttachedModels: function handleAttachedModels(model) {
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/**
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* @NOTE:
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* Bookshelf only exposes the object that is being detached on `detaching`.
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* For the reason above, `detached` handler is using the scope of `detaching`
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* to access the models that are not present in `detached`.
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*/
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model.related('tags').once('detaching', function onDetached(collection, tag) {
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model.related('tags').once('detached', function onDetached(detachedCollection, response, options) {
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tag.emitChange('detached', options);
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model.emitChange('tag.detached', options);
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});
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});
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model.related('tags').once('attaching', function onDetached(collection, tags) {
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model.related('tags').once('attached', function onDetached(detachedCollection, response, options) {
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tags.forEach((tag) => {
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tag.emitChange('attached', options);
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model.emitChange('tag.attached', options);
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});
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});
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});
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model.related('authors').once('detaching', function onDetached(collection, author) {
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model.related('authors').once('detached', function onDetached(detachedCollection, response, options) {
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author.emitChange('detached', options);
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});
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});
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model.related('authors').once('attaching', function onDetached(collection, authors) {
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model.related('authors').once('attached', function onDetached(detachedCollection, response, options) {
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authors.forEach(author => author.emitChange('attached', options));
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});
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});
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},
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/**
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* @NOTE:
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* when status is changed from or to 'published' all related authors and tags
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* have to trigger recalculation in URL service because status is applied in filters for
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* these models
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*/
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handleStatusForAttachedModels: function handleStatusForAttachedModels(model, options) {
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model.related('tags').forEach((tag) => {
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tag.emitChange('attached', options);
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});
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model.related('authors').forEach((author) => {
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author.emitChange('attached', options);
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});
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},
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onSaving: function onSaving(model, attr, options) {
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options = options || {};
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var self = this,
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title,
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i,
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// Variables to make the slug checking more readable
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newTitle = this.get('title'),
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newStatus = this.get('status'),
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olderStatus = this.previous('status'),
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prevTitle = this.previous('title'),
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prevSlug = this.previous('slug'),
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publishedAt = this.get('published_at'),
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publishedAtHasChanged = this.hasDateChanged('published_at', {beforeWrite: true}),
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generatedFields = ['html', 'plaintext'],
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tagsToSave,
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ops = [];
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// CASE: disallow published -> scheduled
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// @TODO: remove when we have versioning based on updated_at
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if (newStatus !== olderStatus && newStatus === 'scheduled' && olderStatus === 'published') {
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return Promise.reject(new common.errors.ValidationError({
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message: common.i18n.t('errors.models.post.isAlreadyPublished', {key: 'status'})
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}));
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}
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if (options.method === 'insert') {
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if (!this.get('comment_id')) {
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this.set('comment_id', this.id);
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}
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}
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// CASE: both page and post can get scheduled
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if (newStatus === 'scheduled') {
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if (!publishedAt) {
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return Promise.reject(new common.errors.ValidationError({
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message: common.i18n.t('errors.models.post.valueCannotBeBlank', {key: 'published_at'})
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}));
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} else if (!moment(publishedAt).isValid()) {
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return Promise.reject(new common.errors.ValidationError({
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message: common.i18n.t('errors.models.post.valueCannotBeBlank', {key: 'published_at'})
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}));
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// CASE: to schedule/reschedule a post, a minimum diff of x minutes is needed (default configured is 2minutes)
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} else if (
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publishedAtHasChanged &&
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moment(publishedAt).isBefore(moment().add(config.get('times').cannotScheduleAPostBeforeInMinutes, 'minutes')) &&
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!options.importing &&
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(!options.context || !options.context.internal)
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) {
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return Promise.reject(new common.errors.ValidationError({
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message: common.i18n.t('errors.models.post.expectedPublishedAtInFuture', {
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cannotScheduleAPostBeforeInMinutes: config.get('times').cannotScheduleAPostBeforeInMinutes
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})
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}));
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}
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}
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// CASE: detect lowercase/uppercase tag slugs
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if (!_.isUndefined(this.get('tags')) && !_.isNull(this.get('tags'))) {
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tagsToSave = [];
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// and deduplicate upper/lowercase tags
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_.each(this.get('tags'), function each(item) {
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for (i = 0; i < tagsToSave.length; i = i + 1) {
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if (tagsToSave[i].name && item.name && tagsToSave[i].name.toLocaleLowerCase() === item.name.toLocaleLowerCase()) {
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return;
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}
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}
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tagsToSave.push(item);
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});
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this.set('tags', tagsToSave);
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}
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this.handleAttachedModels(model);
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ghostBookshelf.Model.prototype.onSaving.apply(this, arguments);
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// do not allow generated fields to be overridden via the API
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if (!options.migrating) {
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generatedFields.forEach((field) => {
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if (this.hasChanged(field)) {
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this.set(field, this.previous(field));
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}
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});
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}
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if (!this.get('mobiledoc')) {
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this.set('mobiledoc', JSON.stringify(converters.mobiledocConverter.blankStructure()));
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}
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// CASE: mobiledoc has changed, generate html
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// CASE: html is null, but mobiledoc exists (only important for migrations & importing)
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if (this.hasChanged('mobiledoc') || (!this.get('html') && (options.migrating || options.importing))) {
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try {
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this.set('html', converters.mobiledocConverter.render(JSON.parse(this.get('mobiledoc'))));
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} catch (err) {
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throw new common.errors.ValidationError({
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message: 'Invalid mobiledoc structure.',
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help: 'https://ghost.org/docs/concepts/posts/'
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});
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}
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}
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if (this.hasChanged('html') || !this.get('plaintext')) {
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const plaintext = htmlToText.fromString(this.get('html'), {
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wordwrap: 80,
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ignoreImage: true,
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hideLinkHrefIfSameAsText: true,
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preserveNewlines: true,
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returnDomByDefault: true,
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uppercaseHeadings: false
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});
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// CASE: html is e.g. <p></p>
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// @NOTE: Otherwise we will always update the resource to `plaintext: ''` and Bookshelf thinks that this
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// value was modified.
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if (plaintext || plaintext !== this.get('plaintext')) {
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this.set('plaintext', plaintext);
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}
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}
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// disabling sanitization until we can implement a better version
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if (!options.importing) {
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title = this.get('title') || common.i18n.t('errors.models.post.untitled');
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this.set('title', _.toString(title).trim());
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}
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// ### Business logic for published_at and published_by
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// If the current status is 'published' and published_at is not set, set it to now
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if (newStatus === 'published' && !publishedAt) {
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this.set('published_at', new Date());
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}
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// If the current status is 'published' and the status has just changed ensure published_by is set correctly
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if (newStatus === 'published' && this.hasChanged('status')) {
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// unless published_by is set and we're importing, set published_by to contextUser
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if (!(this.get('published_by') && options.importing)) {
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this.set('published_by', String(this.contextUser(options)));
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}
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} else {
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// In any other case (except import), `published_by` should not be changed
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if (this.hasChanged('published_by') && !options.importing) {
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this.set('published_by', this.previous('published_by') ? String(this.previous('published_by')) : null);
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}
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}
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// If a title is set, not the same as the old title, a draft post, and has never been published
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if (prevTitle !== undefined && newTitle !== prevTitle && newStatus === 'draft' && !publishedAt) {
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ops.push(function updateSlug() {
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// Pass the new slug through the generator to strip illegal characters, detect duplicates
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return ghostBookshelf.Model.generateSlug(Post, self.get('title'),
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{status: 'all', transacting: options.transacting, importing: options.importing})
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.then(function then(slug) {
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// After the new slug is found, do another generate for the old title to compare it to the old slug
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return ghostBookshelf.Model.generateSlug(Post, prevTitle,
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{status: 'all', transacting: options.transacting, importing: options.importing}
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).then(function then(prevTitleSlug) {
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// If the old slug is the same as the slug that was generated from the old title
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// then set a new slug. If it is not the same, means was set by the user
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if (prevTitleSlug === prevSlug) {
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self.set({slug: slug});
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}
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});
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});
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});
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} else {
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ops.push(function updateSlug() {
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// If any of the attributes above were false, set initial slug and check to see if slug was changed by the user
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if (self.hasChanged('slug') || !self.get('slug')) {
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// Pass the new slug through the generator to strip illegal characters, detect duplicates
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return ghostBookshelf.Model.generateSlug(Post, self.get('slug') || self.get('title'),
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{status: 'all', transacting: options.transacting, importing: options.importing})
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.then(function then(slug) {
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self.set({slug: slug});
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});
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}
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return Promise.resolve();
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});
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}
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// CASE: Handle mobiledoc backups/revisions. This is a pure database feature.
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if (model.hasChanged('mobiledoc') && !options.importing && !options.migrating) {
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ops.push(function updateRevisions() {
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return ghostBookshelf.model('MobiledocRevision')
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.findAll(Object.assign({
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filter: `post_id:${model.id}`,
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columns: ['id']
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}, _.pick(options, 'transacting')))
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.then((revisions) => {
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/**
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* Store prev + latest mobiledoc content, because we have decided against a migration, which
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* iterates over all posts and creates a copy of the current mobiledoc content.
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*
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* Reasons:
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* - usually migrations for the post table are slow and error-prone
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* - there is no need to create a copy for all posts now, because we only want to ensure
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* that posts, which you are currently working on, are getting a content backup
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* - no need to create revisions for existing published posts
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*
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* The feature is very minimal in the beginning. As soon as you update to this Ghost version,
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* you
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*/
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if (!revisions.length && options.method !== 'insert') {
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model.set('mobiledoc_revisions', [{
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post_id: model.id,
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mobiledoc: model.previous('mobiledoc'),
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created_at_ts: Date.now() - 1
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}, {
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post_id: model.id,
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mobiledoc: model.get('mobiledoc'),
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created_at_ts: Date.now()
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}]);
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} else {
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const revisionsJSON = revisions.toJSON().slice(0, MOBILEDOC_REVISIONS_COUNT - 1);
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model.set('mobiledoc_revisions', revisionsJSON.concat([{
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post_id: model.id,
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mobiledoc: model.get('mobiledoc'),
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created_at_ts: Date.now()
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}]));
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}
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});
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});
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}
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return sequence(ops);
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},
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created_by: function createdBy() {
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return this.belongsTo('User', 'created_by');
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},
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updated_by: function updatedBy() {
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return this.belongsTo('User', 'updated_by');
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},
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published_by: function publishedBy() {
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return this.belongsTo('User', 'published_by');
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},
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authors: function authors() {
|
|
return this.belongsToMany('User', 'posts_authors', 'post_id', 'author_id')
|
|
.withPivot('sort_order')
|
|
.query('orderBy', 'sort_order', 'ASC');
|
|
},
|
|
|
|
tags: function tags() {
|
|
return this.belongsToMany('Tag', 'posts_tags', 'post_id', 'tag_id')
|
|
.withPivot('sort_order')
|
|
.query('orderBy', 'sort_order', 'ASC');
|
|
},
|
|
|
|
fields: function fields() {
|
|
return this.morphMany('AppField', 'relatable');
|
|
},
|
|
|
|
mobiledoc_revisions() {
|
|
return this.hasMany('MobiledocRevision', 'post_id');
|
|
},
|
|
|
|
/**
|
|
* @NOTE:
|
|
* If you are requesting models with `columns`, you try to only receive some fields of the model/s.
|
|
* But the model layer is complex and needs specific fields in specific situations.
|
|
*
|
|
* ### url generation was removed but default columns need to be checked before removal
|
|
* - @TODO: with dynamic routing, we no longer need default columns to fetch
|
|
* - because with static routing Ghost generated the url on runtime and needed the following attributes:
|
|
* - `slug`: /:slug/
|
|
* - `published_at`: /:year/:slug
|
|
* - `author_id`: /:author/:slug, /:primary_author/:slug
|
|
* - now, the UrlService pre-generates urls based on the resources
|
|
* - you can ask `urlService.getUrlByResourceId(post.id)`
|
|
*
|
|
* ### events
|
|
* - you call `findAll` with `columns: id`
|
|
* - then you trigger `post.save()` on the response
|
|
* - bookshelf events (`onSaving`) and model events (`emitChange`) are triggered
|
|
* - but you only fetched the id column, this will trouble (!), because the event hooks require more
|
|
* data than just the id
|
|
* - @TODO: we need to disallow this (!)
|
|
* - you should use `models.Post.edit(..)`
|
|
* - this disallows using the `columns` option
|
|
* - same for destroy - you should use `models.Post.destroy(...)`
|
|
*
|
|
* @IMPORTANT: This fn should **never** be used when updating models (models.Post.edit)!
|
|
* Because the events for updating a resource require most of the fields.
|
|
* This is protected by the fn `permittedOptions`.
|
|
*/
|
|
defaultColumnsToFetch: function defaultColumnsToFetch() {
|
|
return ['id', 'published_at', 'slug', 'author_id'];
|
|
},
|
|
/**
|
|
* If the `formats` option is not used, we return `html` be default.
|
|
* Otherwise we return what is requested e.g. `?formats=mobiledoc,plaintext`
|
|
*/
|
|
formatsToJSON: function formatsToJSON(attrs, options) {
|
|
var defaultFormats = ['html'],
|
|
formatsToKeep = options.formats || defaultFormats;
|
|
|
|
// Iterate over all known formats, and if they are not in the keep list, remove them
|
|
_.each(Post.allowedFormats, function (format) {
|
|
if (formatsToKeep.indexOf(format) === -1) {
|
|
delete attrs[format];
|
|
}
|
|
});
|
|
|
|
return attrs;
|
|
},
|
|
|
|
toJSON: function toJSON(unfilteredOptions) {
|
|
var options = Post.filterOptions(unfilteredOptions, 'toJSON'),
|
|
attrs = ghostBookshelf.Model.prototype.toJSON.call(this, options);
|
|
|
|
attrs = this.formatsToJSON(attrs, options);
|
|
|
|
// CASE: never expose the revisions
|
|
delete attrs.mobiledoc_revisions;
|
|
|
|
// expose canonical_url only for API v2 calls
|
|
// NOTE: this can be removed when API v0.1 is dropped. A proper solution for field
|
|
// differences on resources like this would be an introduction of API output schema
|
|
if (!_.get(unfilteredOptions, 'extraProperties', []).includes('canonical_url')) {
|
|
delete attrs.canonical_url;
|
|
}
|
|
|
|
// If the current column settings allow it...
|
|
if (!options.columns || (options.columns && options.columns.indexOf('primary_tag') > -1)) {
|
|
// ... attach a computed property of primary_tag which is the first tag if it is public, else null
|
|
if (attrs.tags && attrs.tags.length > 0 && attrs.tags[0].visibility === 'public') {
|
|
attrs.primary_tag = attrs.tags[0];
|
|
} else {
|
|
attrs.primary_tag = null;
|
|
}
|
|
}
|
|
|
|
return attrs;
|
|
},
|
|
enforcedFilters: function enforcedFilters(options) {
|
|
return options.context && options.context.public ? 'status:published' : null;
|
|
},
|
|
defaultFilters: function defaultFilters(options) {
|
|
if (options.context && options.context.internal) {
|
|
return null;
|
|
}
|
|
|
|
return options.context && options.context.public ? 'page:false' : 'page:false+status:published';
|
|
},
|
|
|
|
/**
|
|
* You can pass an extra `status=VALUES` or "staticPages" field.
|
|
* Long-Term: We should deprecate these short cuts and force users to use the filter param.
|
|
*/
|
|
extraFilters: function extraFilters(options) {
|
|
if (!options.staticPages && !options.status) {
|
|
return null;
|
|
}
|
|
|
|
let filter = null;
|
|
|
|
// CASE: "staticPages" is passed
|
|
if (options.staticPages && options.staticPages !== 'all') {
|
|
// CASE: convert string true/false to boolean
|
|
if (!_.isBoolean(options.staticPages)) {
|
|
options.staticPages = _.includes(['true', '1'], options.staticPages);
|
|
}
|
|
|
|
filter = `page:${options.staticPages}`;
|
|
} else if (options.staticPages === 'all') {
|
|
filter = 'page:[true, false]';
|
|
}
|
|
|
|
// CASE: "status" is passed, combine filters
|
|
if (options.status && options.status !== 'all') {
|
|
options.status = _.includes(ALL_STATUSES, options.status) ? options.status : 'published';
|
|
|
|
if (!filter) {
|
|
filter = `status:${options.status}`;
|
|
} else {
|
|
filter = `${filter}+status:${options.status}`;
|
|
}
|
|
} else if (options.status === 'all') {
|
|
if (!filter) {
|
|
filter = `status:[${ALL_STATUSES}]`;
|
|
} else {
|
|
filter = `${filter}+status:[${ALL_STATUSES}]`;
|
|
}
|
|
}
|
|
|
|
delete options.status;
|
|
delete options.staticPages;
|
|
return filter;
|
|
},
|
|
|
|
getAction(event, options) {
|
|
const actor = this.getActor(options);
|
|
|
|
// @NOTE: we ignore internal updates (`options.context.internal`) for now
|
|
if (!actor) {
|
|
return;
|
|
}
|
|
|
|
// @TODO: implement context
|
|
return {
|
|
event: event,
|
|
resource_id: this.id || this.previous('id'),
|
|
resource_type: this.tableName.replace(/s$/, ''),
|
|
actor_id: actor.id,
|
|
actor_type: actor.type
|
|
};
|
|
}
|
|
}, {
|
|
allowedFormats: ['mobiledoc', 'html', 'plaintext'],
|
|
|
|
orderDefaultOptions: function orderDefaultOptions() {
|
|
return {
|
|
status: 'ASC',
|
|
published_at: 'DESC',
|
|
updated_at: 'DESC',
|
|
id: 'DESC'
|
|
};
|
|
},
|
|
|
|
orderDefaultRaw: function (options) {
|
|
let order = '' +
|
|
'CASE WHEN posts.status = \'scheduled\' THEN 1 ' +
|
|
'WHEN posts.status = \'draft\' THEN 2 ' +
|
|
'ELSE 3 END ASC,' +
|
|
'CASE WHEN posts.status != \'draft\' THEN posts.published_at END DESC,' +
|
|
'posts.updated_at DESC,' +
|
|
'posts.id DESC';
|
|
|
|
// CASE: if the filter contains an `IN` operator, we should return the posts first, which match both tags
|
|
if (options.filter && options.filter.match(/(tags|tag):\s?\[.*\]/)) {
|
|
order = `(SELECT count(*) FROM posts_tags WHERE post_id = posts.id) DESC, ${order}`;
|
|
}
|
|
|
|
// CASE: if the filter contains an `IN` operator, we should return the posts first, which match both authors
|
|
if (options.filter && options.filter.match(/(authors|author):\s?\[.*\]/)) {
|
|
order = `(SELECT count(*) FROM posts_authors WHERE post_id = posts.id) DESC, ${order}`;
|
|
}
|
|
|
|
return order;
|
|
},
|
|
|
|
/**
|
|
* Returns an array of keys permitted in a method's `options` hash, depending on the current method.
|
|
* @param {String} methodName The name of the method to check valid options for.
|
|
* @return {Array} Keys allowed in the `options` hash of the model's method.
|
|
*/
|
|
permittedOptions: function permittedOptions(methodName) {
|
|
var options = ghostBookshelf.Model.permittedOptions.call(this, methodName),
|
|
|
|
// whitelists for the `options` hash argument on methods, by method name.
|
|
// these are the only options that can be passed to Bookshelf / Knex.
|
|
validOptions = {
|
|
findOne: ['columns', 'importing', 'withRelated', 'require', 'filter'],
|
|
findPage: ['status', 'staticPages'],
|
|
findAll: ['columns', 'filter'],
|
|
destroy: ['destroyAll', 'destroyBy'],
|
|
edit: ['filter']
|
|
};
|
|
|
|
// The post model additionally supports having a formats option
|
|
options.push('formats');
|
|
|
|
if (validOptions[methodName]) {
|
|
options = options.concat(validOptions[methodName]);
|
|
}
|
|
|
|
return options;
|
|
},
|
|
|
|
/**
|
|
* We have to ensure consistency. If you listen on model events (e.g. `post.published`), you can expect that you always
|
|
* receive all fields including relations. Otherwise you can't rely on a consistent flow. And we want to avoid
|
|
* that event listeners have to re-fetch a resource. This function is used in the context of inserting
|
|
* and updating resources. We won't return the relations by default for now.
|
|
*/
|
|
defaultRelations: function defaultRelations(methodName, options) {
|
|
if (['edit', 'add', 'destroy'].indexOf(methodName) !== -1) {
|
|
options.withRelated = _.union(['authors', 'tags'], options.withRelated || []);
|
|
}
|
|
|
|
return options;
|
|
},
|
|
|
|
/**
|
|
* Manually add 'tags' attribute since it's not in the schema and call parent.
|
|
*
|
|
* @param {Object} data Has keys representing the model's attributes/fields in the database.
|
|
* @return {Object} The filtered results of the passed in data, containing only what's allowed in the schema.
|
|
*/
|
|
filterData: function filterData(data) {
|
|
var filteredData = ghostBookshelf.Model.filterData.apply(this, arguments),
|
|
extraData = _.pick(data, this.prototype.relationships);
|
|
|
|
_.merge(filteredData, extraData);
|
|
return filteredData;
|
|
},
|
|
|
|
// ## Model Data Functions
|
|
|
|
/**
|
|
* ### Find One
|
|
* @extends ghostBookshelf.Model.findOne to handle post status
|
|
* **See:** [ghostBookshelf.Model.findOne](base.js.html#Find%20One)
|
|
*/
|
|
findOne: function findOne(data = {}, options = {}) {
|
|
// @TODO: remove when we drop v0.1
|
|
if (!options.filter && !data.status) {
|
|
data.status = 'published';
|
|
}
|
|
|
|
if (data.status === 'all') {
|
|
delete data.status;
|
|
}
|
|
|
|
return ghostBookshelf.Model.findOne.call(this, data, options);
|
|
},
|
|
|
|
/**
|
|
* ### Edit
|
|
* Fetches and saves to Post. See model.Base.edit
|
|
* **See:** [ghostBookshelf.Model.edit](base.js.html#edit)
|
|
*/
|
|
edit: function edit(data, unfilteredOptions) {
|
|
let options = this.filterOptions(unfilteredOptions, 'edit', {extraAllowedProperties: ['id']});
|
|
|
|
const editPost = () => {
|
|
options.forUpdate = true;
|
|
|
|
return ghostBookshelf.Model.edit.call(this, data, options)
|
|
.then((post) => {
|
|
return this.findOne({
|
|
status: 'all',
|
|
id: options.id
|
|
}, _.merge({transacting: options.transacting}, unfilteredOptions))
|
|
.then((found) => {
|
|
if (found) {
|
|
// Pass along the updated attributes for checking status changes
|
|
found._previousAttributes = post._previousAttributes;
|
|
found._changed = post._changed;
|
|
return found;
|
|
}
|
|
});
|
|
});
|
|
};
|
|
|
|
if (!options.transacting) {
|
|
return ghostBookshelf.transaction((transacting) => {
|
|
options.transacting = transacting;
|
|
return editPost();
|
|
});
|
|
}
|
|
|
|
return editPost();
|
|
},
|
|
|
|
/**
|
|
* ### Add
|
|
* @extends ghostBookshelf.Model.add to handle returning the full object
|
|
* **See:** [ghostBookshelf.Model.add](base.js.html#add)
|
|
*/
|
|
add: function add(data, unfilteredOptions) {
|
|
let options = this.filterOptions(unfilteredOptions, 'add', {extraAllowedProperties: ['id']});
|
|
|
|
const addPost = (() => {
|
|
return ghostBookshelf.Model.add.call(this, data, options)
|
|
.then((post) => {
|
|
return this.findOne({
|
|
status: 'all',
|
|
id: post.id
|
|
}, _.merge({transacting: options.transacting}, unfilteredOptions));
|
|
});
|
|
});
|
|
|
|
if (!options.transacting) {
|
|
return ghostBookshelf.transaction((transacting) => {
|
|
options.transacting = transacting;
|
|
|
|
return addPost();
|
|
});
|
|
}
|
|
|
|
return addPost();
|
|
},
|
|
|
|
destroy: function destroy(unfilteredOptions) {
|
|
let options = this.filterOptions(unfilteredOptions, 'destroy', {extraAllowedProperties: ['id']});
|
|
|
|
const destroyPost = () => {
|
|
return ghostBookshelf.Model.destroy.call(this, options);
|
|
};
|
|
|
|
if (!options.transacting) {
|
|
return ghostBookshelf.transaction((transacting) => {
|
|
options.transacting = transacting;
|
|
return destroyPost();
|
|
});
|
|
}
|
|
|
|
return destroyPost();
|
|
},
|
|
|
|
// NOTE: the `authors` extension is the parent of the post model. It also has a permissible function.
|
|
permissible: function permissible(postModel, action, context, unsafeAttrs, loadedPermissions, hasUserPermission, hasAppPermission, hasApiKeyPermission) {
|
|
let isContributor, isEdit, isAdd, isDestroy;
|
|
|
|
function isChanging(attr) {
|
|
return unsafeAttrs[attr] && unsafeAttrs[attr] !== postModel.get(attr);
|
|
}
|
|
|
|
function isPublished() {
|
|
return unsafeAttrs.status && unsafeAttrs.status !== 'draft';
|
|
}
|
|
|
|
function isDraft() {
|
|
return postModel.get('status') === 'draft';
|
|
}
|
|
|
|
isContributor = loadedPermissions.user && _.some(loadedPermissions.user.roles, {name: 'Contributor'});
|
|
isEdit = (action === 'edit');
|
|
isAdd = (action === 'add');
|
|
isDestroy = (action === 'destroy');
|
|
|
|
if (isContributor && isEdit) {
|
|
// Only allow contributor edit if status is changing, and the post is a draft post
|
|
hasUserPermission = !isChanging('status') && isDraft();
|
|
} else if (isContributor && isAdd) {
|
|
// If adding, make sure it's a draft post and has the correct ownership
|
|
hasUserPermission = !isPublished();
|
|
} else if (isContributor && isDestroy) {
|
|
// If destroying, only allow contributor to destroy their own draft posts
|
|
hasUserPermission = isDraft();
|
|
}
|
|
|
|
const excludedAttrs = [];
|
|
if (isContributor) {
|
|
// Note: at the moment primary_tag is a computed field,
|
|
// meaning we don't add it to this list. However, if the primary_tag/primary_author
|
|
// ever becomes a db field rather than a computed field, add it to this list
|
|
// TODO: once contributors are able to edit existing tags, this can be removed
|
|
// @TODO: we need a concept for making a diff between incoming tags and existing tags
|
|
excludedAttrs.push('tags');
|
|
}
|
|
|
|
if (hasUserPermission && hasApiKeyPermission && hasAppPermission) {
|
|
return Promise.resolve({excludedAttrs});
|
|
}
|
|
|
|
return Promise.reject(new common.errors.NoPermissionError({
|
|
message: common.i18n.t('errors.models.post.notEnoughPermission')
|
|
}));
|
|
}
|
|
});
|
|
|
|
Posts = ghostBookshelf.Collection.extend({
|
|
model: Post
|
|
});
|
|
|
|
// Extension for handling the logic for author + multiple authors
|
|
Post = relations.authors.extendModel(Post, Posts, ghostBookshelf);
|
|
|
|
module.exports = {
|
|
Post: ghostBookshelf.model('Post', Post),
|
|
Posts: ghostBookshelf.collection('Posts', Posts)
|
|
};
|