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.findOrCreate()
Find the record matching the specified criteria. If no such record exists, create one using the provided initial values.
var newOrExistingRecord = await Something.findOrCreate(criteria, initialValues);
Or, if you need to know whether a new record was created:
Something.findOrCreate(criteria, initialValues)
.exec(function(err, newOrExistingRecord, wasCreated) {
});
Usage
| # | Argument | Type | Details |
|---|---|---|---|
| 1 | criteria | The Waterline criteria to use for matching records in the database. This particular criteria should always match exactly zero or one records in the database. | |
| 2 | initialValues | The initial values for the new record, if one is created. |
Callback
| Argument | Type | Details | |
|---|---|---|---|
| 1 | err | The error that occurred, or undefined if there were no errors. |
|
| 2 | newOrExistingRecord | The record that was found, or undefined if no such record could be located. |
|
| 3 | wasCreated | Whether a new record was created. |
Errors
| Name | Type | When? |
|---|---|---|
| UsageError | Thrown if something invalid was passed in. | |
| AdapterError | Thrown if something went wrong in the database adapter. | |
| Error | Thrown if anything else unexpected happens. |
See Concepts > Models and ORM > Errors for examples of negotiating errors in Sails and Waterline.
Example
Ensure our test user, Finn, exists:
User.findOrCreate({ name: 'Finn' }, { name: 'Finn' })
.exec(async(err, user, wasCreated)=> {
if (err) { return res.serverError(err); }
if(wasCreated) {
sails.log('Created a new user: ' + user.name);
}
else {
sails.log('Found existing user: ' + user.name);
}
});
Notes
- This method can be used with
await, promise chaining, or traditional Node callbacks. However, if you useawait, the result will be the record only -- you will not have access towasCreated.- Behind the scenes, this uses
.findOne(), so if more than one record in the database matches the provided criteria, there will be an error explaining as much.
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Reference
- Application
- Blueprint API
- Command-line interface
-
Configuration
- sails.config.*
- sails.config.blueprints
- sails.config.bootstrap()
- sails.config.custom
- sails.config.datastores
- sails.config.globals
- sails.config.http
- sails.config.i18n
- sails.config.log
- sails.config.models
- sails.config.policies
- sails.config.routes
- sails.config.security
- sails.config.session
- sails.config.sockets
- sails.config.views
-
Request (`req`)
- req._startTime
- req.body
- req.cookies
- req.fresh
- req.headers
- req.hostname
- req.ip
- req.ips
- req.isSocket
- req.method
- req.options
- req.originalUrl
- req.params
- req.path
- req.protocol
- req.query
- req.secure
- req.signedCookies
- req.socket
- req.subdomains
- req.url
- req.wantsJSON
- req.xhr
- req.accepts()
- req.acceptsCharsets()
- req.acceptsLanguages()
- req.allParams()
- req.file()
- req.get()
- req.is()
- req.param()
- req.setLocale()
- req.setTimeout()
- req.host
- Response (`res`)
- Waterline (ORM)
- WebSockets
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