method

connects_to

v6.0.0 - Show latest stable - 0 notes - Class: ConnectionHandling

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What's this?

connects_to(database: {}) public

Connects a model to the databases specified. The database keyword takes a hash consisting of a role and a database_key.

This will create a connection handler for switching between connections, look up the config hash using the database_key and finally establishes a connection to that config.

class AnimalsModel < ApplicationRecord
  self.abstract_class = true

  connects_to database: { writing: :primary, reading: :primary_replica }
end

Returns an array of established connections.

Show source

# File activerecord/lib/active_record/connection_handling.rb, line 68
    def connects_to(database: {})
      connections = []

      database.each do |role, database_key|
        config_hash = resolve_config_for_connection(database_key)
        handler = lookup_connection_handler(role.to_sym)

        connections << handler.establish_connection(config_hash)
      end

      connections
    end

connects_to

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