Class: ActiveRecord::ConnectionAdapters::OracleEnhancedOCIConnection
Overview
OCI database interface for MRI
Defined Under Namespace
Classes: Cursor
Instance Attribute Summary
#raw_connection
Instance Method Summary
collapse
create, #oracle_downcase, #select_one, #select_value, #select_values
Constructor Details
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 23
def initialize(config)
@raw_connection = OCI8EnhancedAutoRecover.new(config, OracleEnhancedOCIFactory)
@owner = config[:schema]
@owner ||= config[:username]
@owner = @owner.to_s.upcase
end
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Instance Method Details
#active? ⇒ Boolean
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 79
def active?
@raw_connection.active?
end
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#auto_retry ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 41
def auto_retry
@raw_connection.auto_retry if @raw_connection
end
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#auto_retry=(value) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 45
def auto_retry=(value)
@raw_connection.auto_retry = value if @raw_connection
end
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#autocommit=(value) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 66
def autocommit=(value)
@raw_connection.autocommit = value
end
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#autocommit? ⇒ Boolean
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 62
def autocommit?
@raw_connection.autocommit?
end
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#commit ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 54
def commit
@raw_connection.commit
end
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#describe(name) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 214
def describe(name)
return super if name.to_s.include?('@')
quoted_name = OracleEnhancedAdapter.valid_table_name?(name) ? name : "\"#{name}\""
@raw_connection.describe(quoted_name)
rescue OCIException => e
if e.code == 4043
raise OracleEnhancedConnectionException, %Q{"DESC #{name}" failed; does it exist?}
else
super
end
end
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#error_code(exception) ⇒ Object
Return OCIError error code
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 229
def error_code(exception)
case exception
when OCIError
exception.code
else
nil
end
end
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#exec(sql, *bindvars, &block) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 89
def exec(sql, *bindvars, &block)
@raw_connection.exec(sql, *bindvars, &block)
end
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#exec_with_returning(sql) ⇒ Object
execute sql with RETURNING … INTO :insert_id and return :insert_id value
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 99
def exec_with_returning(sql)
cursor = @raw_connection.parse(sql)
cursor.bind_param(':insert_id', nil, Integer)
cursor.exec
cursor[':insert_id']
ensure
cursor.close rescue nil
end
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#logoff ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 49
def logoff
@raw_connection.logoff
@raw_connection.active = false
end
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#ping ⇒ Object
Checks connection, returns true if active. Note that ping actively checks the connection, while #active? simply returns the last known state.
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 73
def ping
@raw_connection.ping
rescue OCIException => e
raise OracleEnhancedConnectionException, e.message
end
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#prepare(sql) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 108
def prepare(sql)
Cursor.new(self, @raw_connection.parse(sql))
end
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#raw_oci_connection ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 31
def raw_oci_connection
if @raw_connection.is_a? OCI8
@raw_connection
else
@raw_connection.instance_variable_get(:@connection)
end
end
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#reset! ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 83
def reset!
@raw_connection.reset!
rescue OCIException => e
raise OracleEnhancedConnectionException, e.message
end
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#returning_clause(quoted_pk) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 93
def returning_clause(quoted_pk)
" RETURNING #{quoted_pk} INTO :insert_id"
end
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#rollback ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 58
def rollback
@raw_connection.rollback
end
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#select(sql, name = nil, return_column_names = false) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 181
def select(sql, name = nil, return_column_names = false)
cursor = @raw_connection.exec(sql)
cols = []
cursor.get_col_names.each do |col_name|
col_name = oracle_downcase(col_name)
cols << col_name unless col_name == 'raw_rnum_'
end
column_hash = {}
cols.each {|c| column_hash[c] = nil}
rows = []
get_lob_value = !(name == 'Writable Large Object')
while row = cursor.fetch
hash = column_hash.dup
cols.each_with_index do |col, i|
hash[col] = typecast_result_value(row[i], get_lob_value)
end
rows << hash
end
return_column_names ? [rows, cols] : rows
ensure
cursor.close if cursor
end
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#typecast_result_value(value, get_lob_value) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 238
def typecast_result_value(value, get_lob_value)
case value
when Fixnum, Bignum
value
when String
value
when Float, BigDecimal
value == (v_to_i = value.to_i) ? v_to_i : value
when OraNumber
value == (v_to_i = value.to_i) ? v_to_i : BigDecimal.new(value.to_s)
when OCI8::LOB
if get_lob_value
data = value.read || "" data.force_encoding('ASCII-8BIT') if data.respond_to?(:force_encoding) && value.is_a?(OCI8::BLOB)
data
else
value
end
when Time, DateTime
if OracleEnhancedAdapter.emulate_dates && date_without_time?(value)
value.to_date
else
create_time_with_default_timezone(value)
end
else
value
end
end
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#write_lob(lob, value, is_binary = false) ⇒ Object
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# File 'lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb', line 210
def write_lob(lob, value, is_binary = false)
lob.write value
end
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