import {utils} from 'js-data'
import rethinkdbdash from 'rethinkdbdash'
import underscore from 'mout/string/underscore'
import unique from 'mout/array/unique'
const {
addHiddenPropsToTarget,
extend,
fillIn,
forEachRelation,
forOwn,
get,
isArray,
isObject,
isString,
isUndefined,
plainCopy,
resolve
} = utils
const reserved = [
'orderBy',
'sort',
'limit',
'offset',
'skip',
'where'
]
const noop = function (...args) {
const self = this
const opts = args[args.length - 1]
self.dbg(opts.op, ...args)
return resolve()
}
const noop2 = function (...args) {
const self = this
const opts = args[args.length - 2]
self.dbg(opts.op, ...args)
return resolve()
}
const withoutRelations = function (mapper, props) {
const relationFields = mapper.relationFields || []
// Remove relations
const _props = {}
forOwn(props, function (value, key) {
if (relationFields.indexOf(key) === -1) {
_props[key] = value
}
})
return _props
}
const DEFAULTS = {
/**
* RethinkDB authorization key.
*
* @name RethinkDBAdapter#authKey
* @type {string}
*/
authKey: '',
/**
* Buffer size for connection pool.
*
* @name RethinkDBAdapter#bufferSize
* @type {number}
* @default 10
*/
bufferSize: 10,
/**
* Default database.
*
* @name RethinkDBAdapter#db
* @type {string}
* @default "test"
*/
db: 'test',
/**
* Whether to log debugging information.
*
* @name RethinkDBAdapter#debug
* @type {boolean}
* @default false
*/
debug: false,
/**
* RethinkDB host.
*
* @name RethinkDBAdapter#host
* @type {string}
* @default "localhost"
*/
host: 'localhost',
/**
* Minimum connections in pool.
*
* @name RethinkDBAdapter#min
* @type {number}
* @default 10
*/
min: 10,
/**
* Maximum connections in pool.
*
* @name RethinkDBAdapter#max
* @type {number}
* @default 50
*/
max: 50,
/**
* RethinkDB port.
*
* @name RethinkDBAdapter#port
* @type {number}
* @default 10
*/
port: 28015,
/**
* Whether to return a more detailed response object.
*
* @name RethinkDBAdapter#raw
* @type {boolean}
* @default false
*/
raw: false
}
const INSERT_OPTS_DEFAULTS = {}
const UPDATE_OPTS_DEFAULTS = {}
const DELETE_OPTS_DEFAULTS = {}
const RUN_OPTS_DEFAULTS = {}
const equal = function (r, row, field, value) {
return row(field).default(null).eq(value)
}
const notEqual = function (r, row, field, value) {
return row(field).default(null).ne(value)
}
/**
* Default predicate functions for the filtering operators.
*
* @name RethinkDBAdapter.OPERATORS
* @property {Function} == Equality operator.
* @property {Function} != Inequality operator.
* @property {Function} > "Greater than" operator.
* @property {Function} >= "Greater than or equal to" operator.
* @property {Function} < "Less than" operator.
* @property {Function} <= "Less than or equal to" operator.
* @property {Function} isectEmpty Operator to test that the intersection
* between two arrays is empty.
* @property {Function} isectNotEmpty Operator to test that the intersection
* between two arrays is NOT empty.
* @property {Function} in Operator to test whether a value is found in the
* provided array.
* @property {Function} notIn Operator to test whether a value is NOT found in
* the provided array.
* @property {Function} contains Operator to test whether an array contains the
* provided value.
* @property {Function} notContains Operator to test whether an array does NOT
* contain the provided value.
*/
const OPERATORS = {
'==': equal,
'===': equal,
'!=': notEqual,
'!==': notEqual,
'>': function (r, row, field, value) {
return row(field).default(null).gt(value)
},
'>=': function (r, row, field, value) {
return row(field).default(null).ge(value)
},
'<': function (r, row, field, value) {
return row(field).default(null).lt(value)
},
'<=': function (r, row, field, value) {
return row(field).default(null).le(value)
},
'isectEmpty': function (r, row, field, value) {
return row(field).default([]).setIntersection(r.expr(value).default([])).count().eq(0)
},
'isectNotEmpty': function (r, row, field, value) {
return row(field).default([]).setIntersection(r.expr(value).default([])).count().ne(0)
},
'in': function (r, row, field, value) {
return r.expr(value).default(r.expr([])).contains(row(field).default(null))
},
'notIn': function (r, row, field, value) {
return r.expr(value).default(r.expr([])).contains(row(field).default(null)).not()
},
'contains': function (r, row, field, value) {
return row(field).default([]).contains(value)
},
'notContains': function (r, row, field, value) {
return row(field).default([]).contains(value).not()
}
}
/**
* RethinkDBAdapter class.
*
* @example
* // Use Container instead of DataStore on the server
* import {Container} from 'js-data'
* import RethinkdbDBAdapter from 'js-data-rethinkdb'
*
* // Create a store to hold your Mappers
* const store = new Container()
*
* // Create an instance of RethinkdbDBAdapter with default settings
* const adapter = new RethinkdbDBAdapter()
*
* // Mappers in "store" will use the RethinkDB adapter by default
* store.registerAdapter('rethinkdb', adapter, { default: true })
*
* // Create a Mapper that maps to a "user" table
* store.defineMapper('user')
*
* @class RethinkDBAdapter
* @param {Object} [opts] Configuration opts.
* @param {string} [opts.authKey=""] RethinkDB authorization key.
* @param {number} [opts.bufferSize=10] Buffer size for connection pool.
* @param {string} [opts.db="test"] Default database.
* @param {boolean} [opts.debug=false] Whether to log debugging information.
* @param {string} [opts.host="localhost"] RethinkDB host.
* @param {number} [opts.max=50] Maximum connections in pool.
* @param {number} [opts.min=10] Minimum connections in pool.
* @param {Object} [opts.operators] Override the default predicate functions for
* specified operators.
* @param {number} [opts.port=28015] RethinkDB port.
* @param {boolean} [opts.raw=false] Whether to return a more detailed response object.
*/
export default function RethinkDBAdapter (opts) {
const self = this
opts || (opts = {})
fillIn(opts, DEFAULTS)
fillIn(self, opts)
/**
* Default options to pass to r#insert.
*
* @name RethinkDBAdapter#insertOpts
* @type {Object}
* @default {}
*/
self.insertOpts || (self.insertOpts = {})
fillIn(self.insertOpts, INSERT_OPTS_DEFAULTS)
/**
* Default options to pass to r#update.
*
* @name RethinkDBAdapter#updateOpts
* @type {Object}
* @default {}
*/
self.updateOpts || (self.updateOpts = {})
fillIn(self.updateOpts, UPDATE_OPTS_DEFAULTS)
/**
* Default options to pass to r#delete.
*
* @name RethinkDBAdapter#deleteOpts
* @type {Object}
* @default {}
*/
self.deleteOpts || (self.deleteOpts = {})
fillIn(self.deleteOpts, DELETE_OPTS_DEFAULTS)
/**
* Default options to pass to r#run.
*
* @name RethinkDBAdapter#runOpts
* @type {Object}
* @default {}
*/
self.runOpts || (self.runOpts = {})
fillIn(self.runOpts, RUN_OPTS_DEFAULTS)
/**
* Override the default predicate functions for specified operators.
*
* @name RethinkDBAdapter#operators
* @type {Object}
* @default {}
*/
self.operators || (self.operators = {})
/**
* The rethinkdbdash instance used by this adapter. Use this directly when you
* need to write custom queries.
*
* @name RethinkDBAdapter#r
* @type {Object}
*/
self.r = rethinkdbdash(opts)
self.databases = {}
self.tables = {}
self.indices = {}
}
/**
* Alternative to ES6 class syntax for extending `RethinkDBAdapter`.
*
* @name RethinkDBAdapter.extend
* @method
* @param {Object} [instanceProps] Properties that will be added to the
* prototype of the subclass.
* @param {Object} [classProps] Properties that will be added as static
* properties to the subclass itself.
* @return {Object} Subclass of `RethinkDBAdapter`.
*/
RethinkDBAdapter.extend = extend
addHiddenPropsToTarget(RethinkDBAdapter.prototype, {
_handleErrors (cursor) {
if (cursor && cursor.errors > 0) {
if (cursor.first_error) {
throw new Error(cursor.first_error)
}
throw new Error('Unknown RethinkDB Error')
}
},
/**
* @name RethinkDBAdapter#afterCreate
* @method
*/
afterCreate: noop2,
/**
* @name RethinkDBAdapter#afterCreateMany
* @method
*/
afterCreateMany: noop2,
/**
* @name RethinkDBAdapter#afterDestroy
* @method
*/
afterDestroy: noop2,
/**
* @name RethinkDBAdapter#afterDestroyAll
* @method
*/
afterDestroyAll: noop2,
/**
* @name RethinkDBAdapter#afterFind
* @method
*/
afterFind: noop2,
/**
* @name RethinkDBAdapter#afterFindAll
* @method
*/
afterFindAll: noop2,
/**
* @name RethinkDBAdapter#afterUpdate
* @method
*/
afterUpdate: noop2,
/**
* @name RethinkDBAdapter#afterUpdateAll
* @method
*/
afterUpdateAll: noop2,
/**
* @name RethinkDBAdapter#afterUpdateMany
* @method
*/
afterUpdateMany: noop2,
/**
* @name RethinkDBAdapter#beforeCreate
* @method
*/
beforeCreate: noop,
/**
* @name RethinkDBAdapter#beforeCreateMany
* @method
*/
beforeCreateMany: noop,
/**
* @name RethinkDBAdapter#beforeDestroy
* @method
*/
beforeDestroy: noop,
/**
* @name RethinkDBAdapter#beforeDestroyAll
* @method
*/
beforeDestroyAll: noop,
/**
* @name RethinkDBAdapter#beforeFind
* @method
*/
beforeFind: noop,
/**
* @name RethinkDBAdapter#beforeFindAll
* @method
*/
beforeFindAll: noop,
/**
* @name RethinkDBAdapter#beforeUpdate
* @method
*/
beforeUpdate: noop,
/**
* @name RethinkDBAdapter#beforeUpdateAll
* @method
*/
beforeUpdateAll: noop,
/**
* @name RethinkDBAdapter#beforeUpdateMany
* @method
*/
beforeUpdateMany: noop,
/**
* @name RethinkDBAdapter#dbg
* @method
*/
dbg (...args) {
this.log('debug', ...args)
},
selectDb (opts) {
return this.r.db(isUndefined(opts.db) ? this.db : opts.db)
},
selectTable (mapper, opts) {
return this.selectDb(opts).table(mapper.table || underscore(mapper.name))
},
/**
* Apply the specified selection query to the provided RQL sequence.
*
* @name RethinkDBAdapter#filterSequence
* @method
* @param {Object} mapper The mapper.
* @param {Object} [query] Selection query.
* @param {Object} [query.where] Filtering criteria.
* @param {string|Array} [query.orderBy] Sorting criteria.
* @param {string|Array} [query.sort] Same as `query.sort`.
* @param {number} [query.limit] Limit results.
* @param {number} [query.skip] Offset results.
* @param {number} [query.offset] Same as `query.skip`.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.operators] Override the default predicate functions
* for specified operators.
*/
filterSequence (sequence, query, opts) {
const self = this
const r = self.r
query = plainCopy(query || {})
opts || (opts = {})
opts.operators || (opts.operators = {})
query.where || (query.where = {})
query.orderBy || (query.orderBy = query.sort)
query.orderBy || (query.orderBy = [])
query.skip || (query.skip = query.offset)
// Transform non-keyword properties to "where" clause configuration
forOwn(query, function (config, keyword) {
if (reserved.indexOf(keyword) === -1) {
if (isObject(config)) {
query.where[keyword] = config
} else {
query.where[keyword] = {
'==': config
}
}
delete query[keyword]
}
})
let rql = sequence
// Filter
if (Object.keys(query.where).length !== 0) {
// Filter sequence using filter function
rql = rql.filter(function (row) {
let subQuery
// Apply filter for each field
forOwn(query.where, function (criteria, field) {
if (!isObject(criteria)) {
criteria = { '==': criteria }
}
// Apply filter for each operator
forOwn(criteria, function (value, operator) {
let isOr = false
if (operator && operator[0] === '|') {
operator = operator.substr(1)
isOr = true
}
let predicateFn = self.getOperator(operator, opts)
if (predicateFn) {
const predicateResult = predicateFn(r, row, field, value)
if (isOr) {
subQuery = subQuery ? subQuery.or(predicateResult) : predicateResult
} else {
subQuery = subQuery ? subQuery.and(predicateResult) : predicateResult
}
}
})
})
return subQuery || true
})
}
// Sort
if (query.orderBy) {
if (isString(query.orderBy)) {
query.orderBy = [
[query.orderBy, 'asc']
]
}
for (var i = 0; i < query.orderBy.length; i++) {
if (isString(query.orderBy[i])) {
query.orderBy[i] = [query.orderBy[i], 'asc']
}
rql = (query.orderBy[i][1] || '').toUpperCase() === 'DESC' ? rql.orderBy(r.desc(query.orderBy[i][0])) : rql.orderBy(query.orderBy[i][0])
}
}
// Offset
if (query.skip) {
rql = rql.skip(+query.skip)
}
// Limit
if (query.limit) {
rql = rql.limit(+query.limit)
}
return rql
},
waitForDb (opts) {
const self = this
opts || (opts = {})
const db = isUndefined(opts.db) ? self.db : opts.db
if (!self.databases[db]) {
self.databases[db] = self.r.branch(
self.r.dbList().contains(db),
true,
self.r.dbCreate(db)
).run()
}
return self.databases[db]
},
/**
* Create a new record.
*
* @name RethinkDBAdapter#create
* @method
* @param {Object} mapper The mapper.
* @param {Object} props The record to be created.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.insertOpts] Options to pass to r#insert.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @return {Promise}
*/
create (mapper, props, opts) {
const self = this
let op
props || (props = {})
opts || (opts = {})
return self.waitForTable(mapper, opts).then(function () {
// beforeCreate lifecycle hook
op = opts.op = 'beforeCreate'
return resolve(self[op](mapper, props, opts))
}).then(function (_props) {
// Allow for re-assignment from lifecycle hook
props = isUndefined(_props) ? props : _props
const insertOpts = self.getOpt('insertOpts', opts)
insertOpts.returnChanges = true
return self.selectTable(mapper, opts).insert(props, insertOpts).run(self.getOpt('runOpts', opts))
}).then(function (cursor) {
self._handleErrors(cursor)
let record
if (cursor && cursor.changes && cursor.changes.length && cursor.changes[0].new_val) {
record = cursor.changes[0].new_val
}
let result = {}
fillIn(result, cursor)
result.data = record
result.created = record ? 1 : 0
result = self.getOpt('raw', opts) ? result : result.data
// afterCreate lifecycle hook
op = opts.op = 'afterCreate'
return resolve(self[op](mapper, props, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Create multiple records in a single batch.
*
* @name RethinkDBAdapter#createMany
* @method
* @param {Object} mapper The mapper.
* @param {Object} props The records to be created.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.insertOpts] Options to pass to r#insert.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @return {Promise}
*/
createMany (mapper, props, opts) {
const self = this
let op
props || (props = {})
opts || (opts = {})
return self.waitForTable(mapper, opts).then(function () {
// beforeCreateMany lifecycle hook
op = opts.op = 'beforeCreateMany'
return resolve(self[op](mapper, props, opts))
}).then(function (_props) {
// Allow for re-assignment from lifecycle hook
props = isUndefined(_props) ? props : _props
const insertOpts = self.getOpt('insertOpts', opts)
insertOpts.returnChanges = true
_props = props.map(function (record) {
return withoutRelations(mapper, record)
})
return self.selectTable(mapper, opts).insert(_props, insertOpts).run(self.getOpt('runOpts', opts))
}).then(function (cursor) {
self._handleErrors(cursor)
let records = []
if (cursor && cursor.changes && cursor.changes.length && cursor.changes) {
records = cursor.changes.map(function (change) {
return change.new_val
})
}
let result = {}
fillIn(result, cursor)
result.data = records
result.created = records.length
result = self.getOpt('raw', opts) ? result : result.data
// afterCreateMany lifecycle hook
op = opts.op = 'afterCreateMany'
return resolve(self[op](mapper, props, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Destroy the record with the given primary key.
*
* @name RethinkDBAdapter#destroy
* @method
* @param {Object} mapper The mapper.
* @param {(string|number)} id Primary key of the record to destroy.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.deleteOpts] Options to pass to r#delete.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @return {Promise}
*/
destroy (mapper, id, opts) {
const self = this
let op
opts || (opts = {})
return self.waitForTable(mapper, opts).then(function () {
// beforeDestroy lifecycle hook
op = opts.op = 'beforeDestroy'
return resolve(self[op](mapper, id, opts))
}).then(function () {
op = opts.op = 'destroy'
self.dbg(op, id, opts)
return self.selectTable(mapper, opts).get(id).delete(self.getOpt('deleteOpts', opts)).run(self.getOpt('runOpts', opts))
}).then(function (cursor) {
let result = {}
fillIn(result, cursor)
result = self.getOpt('raw', opts) ? result : undefined
// afterDestroy lifecycle hook
op = opts.op = 'afterDestroy'
return resolve(self[op](mapper, id, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Destroy the records that match the selection query.
*
* @name RethinkDBAdapter#destroyAll
* @method
* @param {Object} mapper the mapper.
* @param {Object} [query] Selection query.
* @param {Object} [query.where] Filtering criteria.
* @param {string|Array} [query.orderBy] Sorting criteria.
* @param {string|Array} [query.sort] Same as `query.sort`.
* @param {number} [query.limit] Limit results.
* @param {number} [query.skip] Offset results.
* @param {number} [query.offset] Same as `query.skip`.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.deleteOpts] Options to pass to r#delete.
* @param {Object} [opts.operators] Override the default predicate functions
* for specified operators.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @return {Promise}
*/
destroyAll (mapper, query, opts) {
const self = this
let op
query || (query = {})
opts || (opts = {})
return self.waitForTable(mapper, opts).then(function () {
// beforeDestroyAll lifecycle hook
op = opts.op = 'beforeDestroyAll'
return resolve(self[op](mapper, query, opts))
}).then(function () {
op = opts.op = 'destroyAll'
self.dbg(op, query, opts)
return self
.filterSequence(self.selectTable(mapper, opts), query)
.delete(self.getOpt('deleteOpts', opts))
.run(self.getOpt('runOpts', opts))
}).then(function (cursor) {
let result = {}
fillIn(result, cursor)
result = self.getOpt('raw', opts) ? result : undefined
// afterDestroyAll lifecycle hook
op = opts.op = 'afterDestroyAll'
return resolve(self[op](mapper, query, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Return the foreignKey from the given record for the provided relationship.
*
* There may be reasons why you may want to override this method, like when
* the id of the parent doesn't exactly match up to the key on the child.
*
* @name RethinkDBAdapter#makeHasManyForeignKey
* @method
* @return {*}
*/
makeHasManyForeignKey (mapper, def, record) {
return def.getForeignKey(record)
},
/**
* Load a hasMany relationship.
*
* @name RethinkDBAdapter#loadHasMany
* @method
* @return {Promise}
*/
loadHasMany (mapper, def, records, __opts) {
const self = this
let singular = false
if (isObject(records) && !isArray(records)) {
singular = true
records = [records]
}
const IDs = records.map(function (record) {
return self.makeHasManyForeignKey(mapper, def, record)
})
const query = {}
const criteria = query[def.foreignKey] = {}
if (singular) {
// more efficient query when we only have one record
criteria['=='] = IDs[0]
} else {
criteria['in'] = IDs.filter(function (id) {
return id
})
}
return self.findAll(def.getRelation(), query, __opts).then(function (relatedItems) {
records.forEach(function (record) {
let attached = []
// avoid unneccesary iteration when we only have one record
if (singular) {
attached = relatedItems
} else {
relatedItems.forEach(function (relatedItem) {
if (get(relatedItem, def.foreignKey) === record[mapper.idAttribute]) {
attached.push(relatedItem)
}
})
}
def.setLocalField(record, attached)
})
})
},
/**
* Load a hasOne relationship.
*
* @name RethinkDBAdapter#loadHasOne
* @method
* @return {Promise}
*/
loadHasOne (mapper, def, records, __opts) {
if (isObject(records) && !isArray(records)) {
records = [records]
}
return this.loadHasMany(mapper, def, records, __opts).then(function () {
records.forEach(function (record) {
const relatedData = def.getLocalField(record)
if (isArray(relatedData) && relatedData.length) {
def.setLocalField(record, relatedData[0])
}
})
})
},
/**
* Return the foreignKey from the given record for the provided relationship.
*
* @name RethinkDBAdapter#makeBelongsToForeignKey
* @method
* @return {*}
*/
makeBelongsToForeignKey (mapper, def, record) {
return def.getForeignKey(record)
},
/**
* Load a belongsTo relationship.
*
* @name RethinkDBAdapter#loadBelongsTo
* @method
* @return {Promise}
*/
loadBelongsTo (mapper, def, records, __opts) {
const self = this
const relationDef = def.getRelation()
if (isObject(records) && !isArray(records)) {
const record = records
return self.find(relationDef, self.makeBelongsToForeignKey(mapper, def, record), __opts).then(function (relatedItem) {
def.setLocalField(record, relatedItem)
})
} else {
const keys = records.map(function (record) {
return self.makeBelongsToForeignKey(mapper, def, record)
}).filter(function (key) {
return key
})
return self.findAll(relationDef, {
where: {
[relationDef.idAttribute]: {
'in': keys
}
}
}, __opts).then(function (relatedItems) {
records.forEach(function (record) {
relatedItems.forEach(function (relatedItem) {
if (relatedItem[relationDef.idAttribute] === record[def.foreignKey]) {
def.setLocalField(record, relatedItem)
}
})
})
})
}
},
/**
* Retrieve the record with the given primary key.
*
* @name RethinkDBAdapter#find
* @method
* @param {Object} mapper The mapper.
* @param {(string|number)} id Primary key of the record to retrieve.
* @param {Object} [opts] Configuration options.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @param {string[]} [opts.with=[]] Relations to eager load.
* @return {Promise}
*/
find (mapper, id, opts) {
const self = this
let record, op
opts || (opts = {})
opts.with || (opts.with = [])
const relationList = mapper.relationList || []
let tasks = [self.waitForTable(mapper, opts)]
relationList.forEach(function (def) {
const relationName = def.relation
const relationDef = def.getRelation()
if (!opts.with || opts.with.indexOf(relationName) === -1) {
return
}
if (def.foreignKey && def.type !== 'belongsTo') {
if (def.type === 'belongsTo') {
tasks.push(self.waitForIndex(mapper.table || underscore(mapper.name), def.foreignKey, opts))
} else {
tasks.push(self.waitForIndex(relationDef.table || underscore(relationDef.name), def.foreignKey, opts))
}
}
})
return Promise.all(tasks).then(function () {
// beforeFind lifecycle hook
op = opts.op = 'beforeFind'
return resolve(self[op](mapper, id, opts))
}).then(function () {
op = opts.op = 'find'
self.dbg(op, id, opts)
return self.selectTable(mapper, opts).get(id).run(self.getOpt('runOpts', opts))
}).then(function (_record) {
if (!_record) {
return
}
record = _record
const tasks = []
forEachRelation(mapper, opts, function (def, __opts) {
const relatedMapper = def.getRelation()
let task
if (def.foreignKey && (def.type === 'hasOne' || def.type === 'hasMany')) {
if (def.type === 'hasOne') {
task = self.loadHasOne(mapper, def, record, __opts)
} else {
task = self.loadHasMany(mapper, def, record, __opts)
}
} else if (def.type === 'hasMany' && def.localKeys) {
let localKeys = []
let itemKeys = get(record, def.localKeys) || []
itemKeys = isArray(itemKeys) ? itemKeys : Object.keys(itemKeys)
localKeys = localKeys.concat(itemKeys)
task = self.findAll(relatedMapper, {
where: {
[relatedMapper.idAttribute]: {
'in': unique(localKeys).filter(function (x) { return x })
}
}
}, __opts).then(function (relatedItems) {
def.setLocalField(record, relatedItems)
})
} else if (def.type === 'hasMany' && def.foreignKeys) {
task = self.findAll(relatedMapper, {
where: {
[def.foreignKeys]: {
'contains': get(record, mapper.idAttribute)
}
}
}, __opts).then(function (relatedItems) {
def.setLocalField(record, relatedItems)
})
} else if (def.type === 'belongsTo') {
task = self.loadBelongsTo(mapper, def, record, __opts)
}
if (task) {
tasks.push(task)
}
})
return Promise.all(tasks)
}).then(function () {
let result = {
data: record,
found: record ? 1 : 0
}
result = self.getOpt('raw', opts) ? result : result.data
// afterFind lifecycle hook
op = opts.op = 'afterFind'
return resolve(self[op](mapper, id, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Retrieve the records that match the selection query.
*
* @name RethinkDBAdapter#findAll
* @method
* @param {Object} mapper The mapper.
* @param {Object} [query] Selection query.
* @param {Object} [query.where] Filtering criteria.
* @param {string|Array} [query.orderBy] Sorting criteria.
* @param {string|Array} [query.sort] Same as `query.sort`.
* @param {number} [query.limit] Limit results.
* @param {number} [query.skip] Offset results.
* @param {number} [query.offset] Same as `query.skip`.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.operators] Override the default predicate functions
* for specified operators.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @param {string[]} [opts.with=[]] Relations to eager load.
* @return {Promise}
*/
findAll (mapper, query, opts) {
const self = this
opts || (opts = {})
opts.with || (opts.with = [])
let records = []
let op
const relationList = mapper.relationList || []
let tasks = [self.waitForTable(mapper, opts)]
relationList.forEach(function (def) {
const relationName = def.relation
const relationDef = def.getRelation()
if (!opts.with || opts.with.indexOf(relationName) === -1) {
return
}
if (def.foreignKey && def.type !== 'belongsTo') {
if (def.type === 'belongsTo') {
tasks.push(self.waitForIndex(mapper.table || underscore(mapper.name), def.foreignKey, opts))
} else {
tasks.push(self.waitForIndex(relationDef.table || underscore(relationDef.name), def.foreignKey, opts))
}
}
})
return Promise.all(tasks).then(function () {
// beforeFindAll lifecycle hook
op = opts.op = 'beforeFindAll'
return resolve(self[op](mapper, query, opts))
}).then(function () {
op = opts.op = 'findAll'
self.dbg(op, query, opts)
return self.filterSequence(self.selectTable(mapper, opts), query).run(self.getOpt('runOpts', opts))
}).then(function (_records) {
records = _records
const tasks = []
forEachRelation(mapper, opts, function (def, __opts) {
const relatedMapper = def.getRelation()
const idAttribute = mapper.idAttribute
let task
if (def.foreignKey && (def.type === 'hasOne' || def.type === 'hasMany')) {
if (def.type === 'hasMany') {
task = self.loadHasMany(mapper, def, records, __opts)
} else {
task = self.loadHasOne(mapper, def, records, __opts)
}
} else if (def.type === 'hasMany' && def.localKeys) {
let localKeys = []
records.forEach(function (item) {
let itemKeys = item[def.localKeys] || []
itemKeys = isArray(itemKeys) ? itemKeys : Object.keys(itemKeys)
localKeys = localKeys.concat(itemKeys)
})
task = self.findAll(relatedMapper, {
where: {
[relatedMapper.idAttribute]: {
'in': unique(localKeys).filter(function (x) { return x })
}
}
}, __opts).then(function (relatedItems) {
records.forEach(function (item) {
let attached = []
let itemKeys = get(item, def.localKeys) || []
itemKeys = isArray(itemKeys) ? itemKeys : Object.keys(itemKeys)
relatedItems.forEach(function (relatedItem) {
if (itemKeys && itemKeys.indexOf(relatedItem[relatedMapper.idAttribute]) !== -1) {
attached.push(relatedItem)
}
})
def.setLocalField(item, attached)
})
return relatedItems
})
} else if (def.type === 'hasMany' && def.foreignKeys) {
task = self.findAll(relatedMapper, {
where: {
[def.foreignKeys]: {
'isectNotEmpty': records.map(function (record) {
return get(record, idAttribute)
})
}
}
}, __opts).then(function (relatedItems) {
const foreignKeysField = def.foreignKeys
records.forEach(function (record) {
const _relatedItems = []
const id = get(record, idAttribute)
relatedItems.forEach(function (relatedItem) {
const foreignKeys = get(relatedItems, foreignKeysField) || []
if (foreignKeys.indexOf(id) !== -1) {
_relatedItems.push(relatedItem)
}
})
def.setLocalField(record, _relatedItems)
})
})
} else if (def.type === 'belongsTo') {
task = self.loadBelongsTo(mapper, def, records, __opts)
}
if (task) {
tasks.push(task)
}
})
return Promise.all(tasks)
}).then(function () {
records || (records = [])
let result = {
data: records,
found: records.length
}
result = self.getOpt('raw', opts) ? result : result.data
// afterFindAll lifecycle hook
op = opts.op = 'afterFindAll'
return resolve(self[op](mapper, query, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Resolve the predicate function for the specified operator based on the
* given options and this adapter's settings.
*
* @name RethinkDBAdapter#getOperator
* @method
* @param {string} operator The name of the operator.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.operators] Override the default predicate functions
* for specified operators.
* @return {*} The predicate function for the specified operator.
*/
getOperator (operator, opts) {
opts || (opts = {})
opts.operators || (opts.operators = {})
let ownOps = this.operators || {}
return isUndefined(opts.operators[operator]) ? ownOps[operator] || OPERATORS[operator] : opts.operators[operator]
},
/**
* Resolve the value of the specified option based on the given options and
* this adapter's settings.
*
* @name RethinkDBAdapter#getOpt
* @method
* @param {string} opt The name of the option.
* @param {Object} [opts] Configuration options.
* @return {*} The value of the specified option.
*/
getOpt (opt, opts) {
opts || (opts = {})
return isUndefined(opts[opt]) ? plainCopy(this[opt]) : plainCopy(opts[opt])
},
/**
* Logging utility method.
*
* @name RethinkDBAdapter#log
* @method
*/
log (level, ...args) {
if (level && !args.length) {
args.push(level)
level = 'debug'
}
if (level === 'debug' && !this.debug) {
return
}
const prefix = `${level.toUpperCase()}: (RethinkDBAdapter)`
if (console[level]) {
console[level](prefix, ...args)
} else {
console.log(prefix, ...args)
}
},
/**
* Apply the given update to the record with the specified primary key.
*
* @name RethinkDBAdapter#update
* @method
* @param {Object} mapper The mapper.
* @param {(string|number)} id The primary key of the record to be updated.
* @param {Object} props The update to apply to the record.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.updateOpts] Options to pass to r#update.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @return {Promise}
*/
update (mapper, id, props, opts) {
const self = this
props || (props = {})
opts || (opts = {})
let op
return self.waitForTable(mapper, opts).then(function () {
// beforeUpdate lifecycle hook
op = opts.op = 'beforeUpdate'
return resolve(self[op](mapper, id, props, opts))
}).then(function (_props) {
// Allow for re-assignment from lifecycle hook
props = isUndefined(_props) ? props : _props
const updateOpts = self.getOpt('updateOpts', opts)
updateOpts.returnChanges = true
return self.selectTable(mapper, opts).get(id).update(withoutRelations(mapper, props), updateOpts).run(self.getOpt('runOpts', opts))
}).then(function (cursor) {
let record
self._handleErrors(cursor)
if (cursor && cursor.changes && cursor.changes.length && cursor.changes[0].new_val) {
record = cursor.changes[0].new_val
} else {
throw new Error('Not Found')
}
let result = {}
fillIn(result, cursor)
result.data = record
result.updated = 1
result = self.getOpt('raw', opts) ? result : result.data
// afterUpdate lifecycle hook
op = opts.op = 'afterUpdate'
return resolve(self[op](mapper, id, props, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Apply the given update to all records that match the selection query.
*
* @name RethinkDBAdapter#updateAll
* @method
* @param {Object} mapper The mapper.
* @param {Object} props The update to apply to the selected records.
* @param {Object} [query] Selection query.
* @param {Object} [query.where] Filtering criteria.
* @param {string|Array} [query.orderBy] Sorting criteria.
* @param {string|Array} [query.sort] Same as `query.sort`.
* @param {number} [query.limit] Limit results.
* @param {number} [query.skip] Offset results.
* @param {number} [query.offset] Same as `query.skip`.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.operators] Override the default predicate functions
* for specified operators.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @param {Object} [opts.updateOpts] Options to pass to r#update.
* @return {Promise}
*/
updateAll (mapper, props, query, opts) {
const self = this
props || (props = {})
query || (query = {})
opts || (opts = {})
let op
return self.waitForTable(mapper, opts).then(function () {
// beforeUpdateAll lifecycle hook
op = opts.op = 'beforeUpdateAll'
return resolve(self[op](mapper, props, query, opts))
}).then(function (_props) {
// Allow for re-assignment from lifecycle hook
props = isUndefined(_props) ? props : _props
const updateOpts = self.getOpt('updateOpts', opts)
updateOpts.returnChanges = true
return self.filterSequence(self.selectTable(mapper, opts), query).update(withoutRelations(mapper, props), updateOpts).run(self.getOpt('runOpts', opts))
}).then(function (cursor) {
let records = []
self._handleErrors(cursor)
if (cursor && cursor.changes && cursor.changes.length) {
records = cursor.changes.map(function (change) { return change.new_val })
}
let result = {}
fillIn(result, cursor)
result.data = records
result.updated = records.length
result = self.getOpt('raw', opts) ? result : result.data
// afterUpdateAll lifecycle hook
op = opts.op = 'afterUpdateAll'
return resolve(self[op](mapper, props, query, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
/**
* Update the given records in a single batch.
*
* @name RethinkDBAdapter#updateMany
* @method
* @param {Object} mapper The mapper.
* @param {Object[]} records The records to update.
* @param {Object} [opts] Configuration options.
* @param {Object} [opts.insertOpts] Options to pass to r#insert.
* @param {boolean} [opts.raw=false] Whether to return a more detailed
* response object.
* @param {Object} [opts.runOpts] Options to pass to r#run.
* @return {Promise}
*/
updateMany (mapper, records, opts) {
const self = this
records || (records = [])
opts || (opts = {})
let op
const idAttribute = mapper.idAttribute
records = records.filter(function (record) {
return get(record, idAttribute)
})
return self.waitForTable(mapper, opts).then(function () {
// beforeUpdateMany lifecycle hook
op = opts.op = 'beforeUpdateMany'
return resolve(self[op](mapper, records, opts))
}).then(function (_records) {
// Allow for re-assignment from lifecycle hook
_records = isUndefined(_records) ? records : _records
const insertOpts = self.getOpt('insertOpts', opts)
insertOpts.returnChanges = true
insertOpts.conflict = 'update'
_records = _records.map(function (record) {
return withoutRelations(mapper, record)
})
return self.selectTable(mapper, opts).insert(_records, insertOpts).run(self.getOpt('runOpts', opts))
}).then(function (cursor) {
let updatedRecords
self._handleErrors(cursor)
if (cursor && cursor.changes && cursor.changes.length) {
updatedRecords = cursor.changes.map(function (change) { return change.new_val })
}
let result = {}
fillIn(result, cursor)
result.data = updatedRecords || []
result.updated = result.data.length
result = self.getOpt('raw', opts) ? result : result.data
// afterUpdateMany lifecycle hook
op = opts.op = 'afterUpdateMany'
return resolve(self[op](mapper, records, opts, result)).then(function (_result) {
// Allow for re-assignment from lifecycle hook
return isUndefined(_result) ? result : _result
})
})
},
waitForTable (mapper, options) {
const table = isString(mapper) ? mapper : (mapper.table || underscore(mapper.name))
options = options || {}
let db = isUndefined(options.db) ? this.db : options.db
return this.waitForDb(options).then(() => {
this.tables[db] = this.tables[db] || {}
if (!this.tables[db][table]) {
this.tables[db][table] = this.r.branch(this.r.db(db).tableList().contains(table), true, this.r.db(db).tableCreate(table)).run()
}
return this.tables[db][table]
})
},
waitForIndex (table, index, options) {
options = options || {}
let db = isUndefined(options.db) ? this.db : options.db
return this.waitForDb(options).then(() => this.waitForTable(table, options)).then(() => {
this.indices[db] = this.indices[db] || {}
this.indices[db][table] = this.indices[db][table] || {}
if (!this.tables[db][table][index]) {
this.tables[db][table][index] = this.r.branch(this.r.db(db).table(table).indexList().contains(index), true, this.r.db(db).table(table).indexCreate(index)).run().then(() => {
return this.r.db(db).table(table).indexWait(index).run()
})
}
return this.tables[db][table][index]
})
}
})
RethinkDBAdapter.OPERATORS = OPERATORS