sequelize/lib/deferrable.js

Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift and Snowflake’s Data Cloud. It features solid transaction support, relations, eager and lazy loading, read replication and more.

"use strict";
const { classToInvokable } = require("./utils");
class ABSTRACT {
  static toString(...args) {
    return new this().toString(...args);
  }
  toString(...args) {
    return this.toSql(...args);
  }
  toSql() {
    throw new Error("toSql implementation missing");
  }
}
class INITIALLY_DEFERRED extends ABSTRACT {
  toSql() {
    return "DEFERRABLE INITIALLY DEFERRED";
  }
}
class INITIALLY_IMMEDIATE extends ABSTRACT {
  toSql() {
    return "DEFERRABLE INITIALLY IMMEDIATE";
  }
}
class NOT extends ABSTRACT {
  toSql() {
    return "NOT DEFERRABLE";
  }
}
class SET_DEFERRED extends ABSTRACT {
  constructor(constraints) {
    super();
    this.constraints = constraints;
  }
  toSql(queryGenerator) {
    return queryGenerator.setDeferredQuery(this.constraints);
  }
}
class SET_IMMEDIATE extends ABSTRACT {
  constructor(constraints) {
    super();
    this.constraints = constraints;
  }
  toSql(queryGenerator) {
    return queryGenerator.setImmediateQuery(this.constraints);
  }
}
const Deferrable = {
  INITIALLY_DEFERRED: classToInvokable(INITIALLY_DEFERRED),
  INITIALLY_IMMEDIATE: classToInvokable(INITIALLY_IMMEDIATE),
  NOT: classToInvokable(NOT),
  SET_DEFERRED: classToInvokable(SET_DEFERRED),
  SET_IMMEDIATE: classToInvokable(SET_IMMEDIATE)
};
module.exports = Deferrable;
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