Class: ActiveRecord::ConnectionAdapters::IBM_DB2_ZOS

Inherits:
IBM_DB2 show all
Defined in:
lib/active_record/connection_adapters/ibm_db_adapter.rb

Overview

module HostedDataServer

Direct Known Subclasses

IBM_DB2_ZOS_8

Instance Method Summary collapse

Methods inherited from IBM_DB2

#change_column, #execute, #get_datetime_mapping, #get_time_mapping, #last_generated_id, #primary_key, #query_offset_limit, #rename_column, #select_all, #set_binary_value, #set_case, #set_text_default

Methods inherited from IBM_DataServer

#check_reserved_words, #execute, #get_datetime_mapping, #get_time_mapping, #initialize, #last_generated_id, #query_offset_limit, #reorg_table, #select_all, #set_binary_value, #set_case, #set_schema, #set_text_default, #setup_for_lob_table

Constructor Details

This class inherits a constructor from ActiveRecord::ConnectionAdapters::IBM_DataServer

Instance Method Details

#change_column_default(table_name, column_name, default) ⇒ Object 



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 1321

def change_column_default(table_name, column_name, default)
  unless default
    raise NotImplementedError,
    "DB2 for zOS data server version 9 does not support changing the column default to NULL"
  else
    super
  end
end

#create_index_after_table(table_name) ⇒ Object

since v9 doesn’t need, suggest putting it in HostedDataServer?



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 1306

def create_index_after_table(table_name)
  @adapter.add_index(table_name, "id", :unique => true) 
end

#remove_column(table_name, column_name) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 1310

def remove_column(table_name, column_name)
  raise NotImplementedError,
  "remove_column is not supported by the DB2 for zOS data server"
end

#set_binary_default(value) ⇒ Object

DB2 z/OS only allows NULL or “” (empty) string as DEFAULT value for a BLOB column. For non-empty string and non-NULL values, the server returns error



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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 1317

def set_binary_default(value)
  "#{value}"
end