Creating associations in sequelize is done by calling one of the belongsTo / hasOne / hasMany / belongsToMany functions on a model (the source), and providing another model as the first argument to the function (the target).
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@@ -81,7 +81,7 @@ Note how we also specified `constraints: false` for profile picture. This is bec
A virtual value that is not stored in the DB. This could for example be useful if you want to provide a default value in your model that is returned to the user but not stored in the DB.
Sequelize provides a host of custom error classes, to allow you to do easier debugging. All of these errors are exposed on the sequelize object and the sequelize constructor.
All sequelize errors inherit from the base JS error object.
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Set is used to update values on the instance (the sequelize representation of the instance that is, remember that nothing will be persisted before you actually call `save`).
In its most basic form `set` will update a value stored in the underlying `dataValues` object. However, if a custom setter function is defined for the key, that function
If changed is called with a string it will return a boolean indicating whether the value of that key in `dataValues` is different from the value in `_previousDataValues`.
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Validate this instance, and if the validation passes, persist it to the database. It will only save changed fields, and do nothing if no fields have changed.
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Destroy the row corresponding to this instance. Depending on your setting for paranoid, the row will either be completely deleted, or have its deletedAt timestamp set to the current time.
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Increment the value of one or more columns. This is done in the database, which means it does not use the values currently stored on the Instance. The increment is done using a
Decrement the value of one or more columns. This is done in the database, which means it does not use the values currently stored on the Instance. The decrement is done using a
Convert the instance to a JSON representation. Proxies to calling `get` with no keys. This means get all values gotten from the DB, and apply all custom getters.
A Model represents a table in the database. Sometimes you might also see it referred to as model, or simply as factory.
This class should _not_ be instantiated directly, it is created using `sequelize.define`, and already created models can be loaded using `sequelize.import`
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Add a new scope to the model. This is especially useful for adding scopes with includes, when the model you want to include is not available at the time this model is defined.
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Find all the rows matching your query, within a specified offset / limit, and get the total number of rows matching your query. This is very useful for paging
Insert or update a single row. An update will be executed if a row which matches the supplied values on either the primary key or a unique key is found. Note that the unique index must be defined in your sequelize model and not just in the table. Otherwise you may experience a unique constraint violation, because sequelize fails to identify the row that should be updated.
A reference to sequelize utilities. Most users will not need to use these utils directly. However, you might want to use `Sequelize.Utils._`, which is a reference to the lodash library, if you don't already have it imported in your project.
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Exposes the validator.js object, so you can extend it with custom validation functions. The validator is exposed both on the instance, and on the constructor.
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Creates a object representing a database function. This can be used in search queries, both in where and order parts, and as default values in column definitions.
If you want to refer to columns in your function, you should use `sequelize.col`, so that the columns are properly interpreted as columns and not a strings.
Creates a object representing a column in the DB. This is often useful in conjunction with `sequelize.fn`, since raw string arguments to fn will be escaped.
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Start a transaction. When using transactions, you should pass the transaction in the options argument in order for the query to happen under that transaction
Sequelize.ARRAY(Sequelize.RANGE(Sequelize.DATE))// Defines array of tstzrange ranges. PostgreSQL only.
Sequelize.GEOMETRY// Spatial column. PostgreSQL (with PostGIS) or MySQL only.
Sequelize.GEOMETRY('POINT')// Spatial column with geomerty type. PostgreSQL (with PostGIS) or MySQL only.
Sequelize.GEOMETRY('POINT',4326)// Spatial column with geomerty type and SRID. PostgreSQL (with PostGIS) or MySQL only.
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The BLOB data type allows you to insert data both as strings and as buffers. When you do a find or findAll on a model which has a BLOB column. that data will always be returned as a buffer.
