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Sails - Waterline ORM
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146
backend/sails.js
146
backend/sails.js
@ -455,6 +455,152 @@ res.view()
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* https://sailsjs.com/documentation/reference/waterline-orm
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********************************************************************************************/
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// --> DATASTORE <--
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// Return the default datastore
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var datastore = sails.getDatastore()
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// The generic, stateless, low-level driver for this datastore (if the adapter supports it).
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datastore.driver
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// The live connection manager for this datastore.
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datastore.manager
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// Lease a new connection from the datastore for use in running multiple queries
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// on the same connection (i.e. so that the logic provided in during can reuse the db connection).
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await datastore.leaseConnection(during)
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// Execute a raw SQL query using this datastore.
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await datastore.sendNativeQuery(sql, valuesToEscape)
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// Fetch a preconfigured deferred object hooked up to the sails-mysql or sails-postgresql adapter
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// (and consequently the appropriate driver)
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await datastore.transaction(during)
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// --> MODELS <--
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// Add one or more existing child records to the specified collection.
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MyModel.addToCollection(parentId, association).members(childIds)
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// Remove one or more members from the specified collection
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MyModel.removeFromCollection()
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// Replace all members of the specified collection
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MyModel.replaceCollection()
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// Archive ("soft-delete") records that match the specified criteria,
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// saving them as new records in the built-in Archive model, then destroying the originals.
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MyModel.archive(criteria)
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// Get the total number of records matching the specified criteria.
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MyModel.count(criteria)
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// Get the aggregate mean of the specified attribute across all matching records.
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MyModel.avg(numericAttrName, criteria)
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// Get the aggregate sum of the specified attribute across all matching records.
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MyModel.sum(numericAttrName, criteria)
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// Find records in your database that match the given criteria.
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MyModel.find(criteria)
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// Attempt to find a particular record in your database that matches the given criteria.
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MyModel.findOne(criteria)
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// Find the record matching the specified criteria.
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// If no such record exists, create one using the provided initial values.
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MyModel.findOrCreate(criteria, initialValues)
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// Create a record in the database.
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MyModel.create(initialValues)
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MyModel.create(initialValues).fetch() // Created record will be returned
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// Create a set of records in the database.
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MyModel.createEach(initialValues)
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MyModel.createEach(initialValues).fetch() // Created records will be returned
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// Update all records matching criteria.
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MyModel.update(criteria, valuesToSet)
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MyModel.update(criteria, valuesToSet).fetch() // Updated records will be returned
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// Destroy records in your database that match the given criteria.
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MyModel.destroy(criteria)
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MyModel.destroy(criteria).fetch() // Destroyed record will be returned
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// Access the datastore for a particular model.
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MyModel.getDatastore()
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// Stream records from your database one at a time or in batches,
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// without first having to buffer the entire result set in memory.
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MyModel.stream(criteria)
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// Verify that a value would be valid for a given attribute, then return it, loosely coerced.
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MyModel.validate(attrName, value)
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// --> QUERIES <--
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// Set the maximum number of records to retrieve when executing a query instance.
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query.limit(maximum)
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// Indicate a number of records to skip before returning the results from executing a query instance.
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query.skip(numRecordsToSkip)
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// Set the order in which retrieved records should be returned when executing a query instance.
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query.sort(sortClause)
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// Specify a where clause for filtering a query.
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query.where(whereClause)
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// Tell Waterline (and the underlying database adapter) to send back records that were
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// updated/destroyed/created when performing an .update(), .create(), .createEach() or .destroy()
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// query. Otherwise, no data will be returned (or if you are using callbacks, the second argument
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// to the .exec() callback will be undefined.)
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// This is just a shortcut for .meta({fetch: true})
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// Warning: This is not recommended for update/destroy queries that affect large numbers of records.
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query.fetch()
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// Modify a query instance so that, when executed, it will populate child records for the
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// specified collection, optionally filtering by subcriteria. Populate may be called more than
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// once on the same query, as long as each call is for a different association.
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query.populate()
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// Decrypt any auto-encrypted attributes in the records returned for this particular query.
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// This is just a shortcut for .meta({decrypt: true})
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query.decrypt()
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// Execute a Waterline query instance.
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query.exec(function (err, result) {})
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// Begin executing a Waterline query instance and return a promise.
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// This is an alternative to .exec().
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query.toPromise()
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// Capture and intercept the specified error, automatically modifying and re-throwing it,
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// or specifying a new Error to be thrown instead. (Still throws.)
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query.intercept(filter, handler)
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query.intercept(handler)
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// Provide additional options to Waterline when executing a query instance.
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query.meta(options)
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// Execute a Waterline query instance using promises.
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// Whenever possible, it is recommended that you use await instead of calling this method.
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// This is an alternative to .exec(). When combined with .catch(), it provides the same functionality.
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query.then(callback)
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// Execute a Waterline query instance using promises.
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// Whenever possible, it is recommended that you use await instead of calling this method.
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// This is an alternative to .exec(). When combined with .then(), it provides the same functionality.
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query.catch(callback)
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// Tolerate (swallow) the specified error, and return a new result value (or undefined) instead. (Don't throw.)
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query.tolerate(filter, handler)
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query.tolerate(filter)
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query.tolerate(handler)
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// Specify an existing database connection to use for this query.
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query.usingConnection(connection)
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/********************************************************************************************
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* 8. WEB SOCKETS
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* https://sailsjs.com/documentation/reference/web-sockets
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