219 lines
6.5 KiB
Ruby
219 lines
6.5 KiB
Ruby
#--
|
|
# =============================================================================
|
|
# Copyright (c) 2004, Jamis Buck (jgb3@email.byu.edu)
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright notice,
|
|
# this list of conditions and the following disclaimer.
|
|
#
|
|
# * Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
#
|
|
# * The names of its contributors may not be used to endorse or promote
|
|
# products derived from this software without specific prior written
|
|
# permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
|
|
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
# =============================================================================
|
|
#++
|
|
|
|
require 'sqlite3_api'
|
|
|
|
module SQLite3 ; module Driver ; module Native
|
|
|
|
class Driver
|
|
|
|
def initialize
|
|
@callback_data = Hash.new
|
|
end
|
|
|
|
def complete?( sql, utf16=false )
|
|
API.send( utf16 ? :sqlite3_complete16 : :sqlite3_complete, sql ) != 0
|
|
end
|
|
|
|
def busy_handler( db, data=nil, &block )
|
|
if block
|
|
cb = API::CallbackData.new
|
|
cb.proc = block
|
|
cb.data = data
|
|
end
|
|
|
|
API.sqlite3_busy_handler( db,
|
|
block ? API::Sqlite3_ruby_busy_handler : nil, cb )
|
|
end
|
|
|
|
def set_authorizer( db, data=nil, &block )
|
|
if block
|
|
cb = API::CallbackData.new
|
|
cb.proc = block
|
|
cb.data = data
|
|
end
|
|
|
|
API.sqlite3_set_authorizer( db,
|
|
block ? API::Sqlite3_ruby_authorizer : nil, cb )
|
|
end
|
|
|
|
def trace( db, data=nil, &block )
|
|
if block
|
|
cb = API::CallbackData.new
|
|
cb.proc = block
|
|
cb.data = data
|
|
end
|
|
|
|
API.sqlite3_trace( db,
|
|
block ? API::Sqlite3_ruby_trace : nil, cb )
|
|
end
|
|
|
|
def open( filename, utf16=false )
|
|
API.send( utf16 ? :sqlite3_open16 : :sqlite3_open, filename )
|
|
end
|
|
|
|
def errmsg( db, utf16=false )
|
|
API.send( utf16 ? :sqlite3_errmsg16 : :sqlite3_errmsg, db )
|
|
end
|
|
|
|
def prepare( db, sql, utf16=false )
|
|
API.send( ( utf16 ? :sqlite3_prepare16 : :sqlite3_prepare ),
|
|
db, sql )
|
|
end
|
|
|
|
def bind_text( stmt, index, value, utf16=false )
|
|
API.send( ( utf16 ? :sqlite3_bind_text16 : :sqlite3_bind_text ),
|
|
stmt, index, value.to_s )
|
|
end
|
|
|
|
def column_name( stmt, index, utf16=false )
|
|
API.send( ( utf16 ? :sqlite3_column_name16 : :sqlite3_column_name ),
|
|
stmt, index )
|
|
end
|
|
|
|
def column_decltype( stmt, index, utf16=false )
|
|
API.send(
|
|
( utf16 ? :sqlite3_column_decltype16 : :sqlite3_column_decltype ),
|
|
stmt, index )
|
|
end
|
|
|
|
def column_text( stmt, index, utf16=false )
|
|
API.send( ( utf16 ? :sqlite3_column_text16 : :sqlite3_column_text ),
|
|
stmt, index )
|
|
end
|
|
|
|
def create_function( db, name, args, text, cookie, func, step, final )
|
|
if func || ( step && final )
|
|
cb = API::CallbackData.new
|
|
cb.proc = cb.proc2 = nil
|
|
cb.data = cookie
|
|
@callback_data[ name ] = cb
|
|
else
|
|
@callback_data.delete( name )
|
|
end
|
|
|
|
if func
|
|
cb.proc = func
|
|
|
|
func = API::Sqlite3_ruby_function_step
|
|
step = final = nil
|
|
elsif step && final
|
|
cb.proc = step
|
|
cb.proc2 = final
|
|
|
|
func = nil
|
|
step = API::Sqlite3_ruby_function_step
|
|
final = API::Sqlite3_ruby_function_final
|
|
end
|
|
|
|
API.sqlite3_create_function( db, name, args, text, cb, func, step, final )
|
|
end
|
|
|
|
def value_text( value, utf16=false )
|
|
method = case utf16
|
|
when nil, false then :sqlite3_value_text
|
|
when :le then :sqlite3_value_text16le
|
|
when :be then :sqlite3_value_text16be
|
|
else :sqlite3_value_text16
|
|
end
|
|
|
|
API.send( method, value )
|
|
end
|
|
|
|
def result_text( context, result, utf16=false )
|
|
method = case utf16
|
|
when nil, false then :sqlite3_result_text
|
|
when :le then :sqlite3_result_text16le
|
|
when :be then :sqlite3_result_text16be
|
|
else :sqlite3_result_text16
|
|
end
|
|
|
|
API.send( method, context, result.to_s )
|
|
end
|
|
|
|
def result_error( context, value, utf16=false )
|
|
API.send( ( utf16 ? :sqlite3_result_error16 : :sqlite3_result_error ),
|
|
context, value )
|
|
end
|
|
|
|
def self.api_delegate( name )
|
|
define_method( name ) { |*args| API.send( "sqlite3_#{name}", *args ) }
|
|
end
|
|
|
|
api_delegate :libversion
|
|
api_delegate :close
|
|
api_delegate :last_insert_rowid
|
|
api_delegate :changes
|
|
api_delegate :total_changes
|
|
api_delegate :interrupt
|
|
api_delegate :busy_timeout
|
|
api_delegate :errcode
|
|
api_delegate :bind_blob
|
|
api_delegate :bind_double
|
|
api_delegate :bind_int
|
|
api_delegate :bind_int64
|
|
api_delegate :bind_null
|
|
api_delegate :bind_parameter_count
|
|
api_delegate :bind_parameter_name
|
|
api_delegate :bind_parameter_index
|
|
api_delegate :column_count
|
|
api_delegate :step
|
|
api_delegate :data_count
|
|
api_delegate :column_blob
|
|
api_delegate :column_bytes
|
|
api_delegate :column_bytes16
|
|
api_delegate :column_double
|
|
api_delegate :column_int
|
|
api_delegate :column_int64
|
|
api_delegate :column_type
|
|
api_delegate :finalize
|
|
api_delegate :reset
|
|
api_delegate :aggregate_count
|
|
api_delegate :value_blob
|
|
api_delegate :value_bytes
|
|
api_delegate :value_bytes16
|
|
api_delegate :value_double
|
|
api_delegate :value_int
|
|
api_delegate :value_int64
|
|
api_delegate :value_type
|
|
api_delegate :result_blob
|
|
api_delegate :result_double
|
|
api_delegate :result_int
|
|
api_delegate :result_int64
|
|
api_delegate :result_null
|
|
api_delegate :result_value
|
|
api_delegate :aggregate_context
|
|
|
|
end
|
|
|
|
end ; end ; end
|