query-interface.ts
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import { DataTypes } from 'sequelize';
// tslint:disable-next-line:no-submodule-imports
import { QueryInterface } from 'sequelize/lib/query-interface';
declare let queryInterface: QueryInterface;
queryInterface.createTable(
'nameOfTheNewTable',
{
attr1: DataTypes.STRING,
attr2: DataTypes.INTEGER,
attr3: {
allowNull: false,
defaultValue: false,
type: DataTypes.BOOLEAN,
},
// foreign key usage
attr4: {
onDelete: 'cascade',
onUpdate: 'cascade',
references: {
key: 'id',
model: 'another_table_name',
},
type: DataTypes.INTEGER,
},
createdAt: {
type: DataTypes.DATE,
},
id: {
autoIncrement: true,
primaryKey: true,
type: DataTypes.INTEGER,
},
updatedAt: {
type: DataTypes.DATE,
},
},
{
charset: 'latin1', // default: null
collate: 'latin1_general_ci',
engine: 'MYISAM', // default: 'InnoDB'
uniqueKeys: {
test: {
customIndex: true,
fields: ['attr2', 'attr3'],
}
}
}
);
queryInterface.dropTable('nameOfTheExistingTable');
queryInterface.dropAllTables();
queryInterface.renameTable('Person', 'User');
queryInterface.showAllTables().then(tableNames => {
// do nothing
});
queryInterface.describeTable('Person').then(attributes => {
/*
attributes will be something like:
{
name: {
type: 'VARCHAR(255)', // this will be 'CHARACTER VARYING' for pg!
allowNull: true,
defaultValue: null
},
isBetaMember: {
type: 'TINYINT(1)', // this will be 'BOOLEAN' for pg!
allowNull: false,
defaultValue: false
}
}
*/
});
queryInterface.addColumn('nameOfAnExistingTable', 'nameOfTheNewAttribute', DataTypes.STRING);
// or
queryInterface.addColumn(
{ tableName: 'nameOfAnExistingTable', schema: 'nameOfSchema' },
'nameOfTheNewAttribute',
DataTypes.STRING
);
// or
queryInterface.addColumn('nameOfAnExistingTable', 'nameOfTheNewAttribute', {
allowNull: false,
type: DataTypes.STRING,
});
queryInterface.removeColumn('Person', 'signature');
// or
queryInterface.removeColumn({ tableName: 'Person', schema: 'nameOfSchema' }, 'signature');
queryInterface.changeColumn('nameOfAnExistingTable', 'nameOfAnExistingAttribute', {
allowNull: false,
defaultValue: 0.0,
type: DataTypes.FLOAT,
});
// or
queryInterface.changeColumn(
{ tableName: 'nameOfAnExistingTable', schema: 'nameOfSchema' },
'nameOfAnExistingAttribute',
{
allowNull: false,
defaultValue: 0.0,
type: DataTypes.FLOAT,
}
);
queryInterface.renameColumn('Person', 'signature', 'sig');
// This example will create the index person_firstname_lastname
queryInterface.addIndex('Person', ['firstname', 'lastname']);
// This example will create a unique index with the name SuperDuperIndex using the optional 'options' field.
// Possible options:
// - indexName: The name of the index. Default is __
// - parser: For FULLTEXT columns set your parser
// - indexType: Set a type for the index, e.g. BTREE. See the documentation of the used dialect
// - logging: A function that receives the sql query, e.g. console.log
queryInterface.addIndex('Person', ['firstname', 'lastname'], {
name: 'SuperDuperIndex',
type: 'UNIQUE',
});
queryInterface.removeIndex('Person', 'SuperDuperIndex');
// or
queryInterface.removeIndex('Person', ['firstname', 'lastname']);
queryInterface.sequelize.transaction(trx => queryInterface.addConstraint('Person', ['firstname', 'lastname'], {
name: 'firstnamexlastname',
type: 'unique',
transaction: trx,
}))
queryInterface.removeConstraint('Person', 'firstnamexlastname');
queryInterface.select(null, 'Person', {
where: {
a: 1,
},
});
queryInterface.delete(null, 'Person', {
where: {
a: 1,
},
});