class RescueUniqueConstraint::RescueHandler

Handles storing and matching [index, field] pairs to exceptions

Attributes

indexes_to_rescue_on[R]
model[R]

Public Class Methods

new(model) click to toggle source
# File lib/rescue_unique_constraint/rescue_handler.rb, line 4
def initialize(model)
  @model = model
  @indexes_to_rescue_on = []
end

Public Instance Methods

add_index(index, field) click to toggle source
# File lib/rescue_unique_constraint/rescue_handler.rb, line 9
def add_index(index, field)
  indexes_to_rescue_on << Index.new(index, field)
end
matching_indexes(e) click to toggle source
# File lib/rescue_unique_constraint/rescue_handler.rb, line 13
def matching_indexes(e)
  indexes = indexes_to_rescue_on.select do |index|
    database_adapter.index_error?(index, e.message)
  end
  raise e unless indexes.any?
  indexes
end

Private Instance Methods

database_adapter() click to toggle source
# File lib/rescue_unique_constraint/rescue_handler.rb, line 25
def database_adapter
  @_database_adapter ||= (
    case database_name
    when :mysql2
      Adapter::MysqlAdapter.new
    when :postgresql
      Adapter::PostgresqlAdapter.new
    when :sqlite
      Adapter::SqliteAdapter.new(@model.table_name)
    else
      raise "Database (#{database_name}) not supported"
    end
  )
end
database_name() click to toggle source
# File lib/rescue_unique_constraint/rescue_handler.rb, line 40
def database_name
  model.connection.adapter_name.downcase.to_sym
end