Module: ActiveRecord::ConnectionAdapters::MySQL::DatabaseStatements

Included in:
ActiveRecord::ConnectionAdapters::Mysql2Adapter
Defined in:
lib/active_record/connection_adapters/mysql/database_statements.rb

Instance Method Summary collapse

Instance Method Details

#exec_delete(sql, name = nil, binds = []) ⇒ Object Also known as: exec_update


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# File 'lib/active_record/connection_adapters/mysql/database_statements.rb', line 43

def exec_delete(sql, name = nil, binds = [])
  if without_prepared_statement?(binds)
    execute_and_free(sql, name) { @connection.affected_rows }
  else
    exec_stmt_and_free(sql, name, binds) { |stmt| stmt.affected_rows }
  end
end

#exec_query(sql, name = "SQL", binds = [], prepare: false) ⇒ Object


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# File 'lib/active_record/connection_adapters/mysql/database_statements.rb', line 31

def exec_query(sql, name = "SQL", binds = [], prepare: false)
  if without_prepared_statement?(binds)
    execute_and_free(sql, name) do |result|
      ActiveRecord::Result.new(result.fields, result.to_a) if result
    end
  else
    exec_stmt_and_free(sql, name, binds, cache_stmt: prepare) do |_, result|
      ActiveRecord::Result.new(result.fields, result.to_a) if result
    end
  end
end

#execute(sql, name = nil) ⇒ Object

Executes the SQL statement in the context of this connection.


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# File 'lib/active_record/connection_adapters/mysql/database_statements.rb', line 23

def execute(sql, name = nil)
  # make sure we carry over any changes to ActiveRecord::Base.default_timezone that have been
  # made since we established the connection
  @connection.query_options[:database_timezone] = ActiveRecord::Base.default_timezone

  super
end

#query(sql, name = nil) ⇒ Object

:nodoc:


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# File 'lib/active_record/connection_adapters/mysql/database_statements.rb', line 18

def query(sql, name = nil) # :nodoc:
  execute(sql, name).to_a
end

#select_allObject

Returns an ActiveRecord::Result instance.


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# File 'lib/active_record/connection_adapters/mysql/database_statements.rb', line 8

def select_all(*) # :nodoc:
  result = if ExplainRegistry.collect? && prepared_statements
    unprepared_statement { super }
  else
    super
  end
  discard_remaining_results
  result
end