Checkout of Instiki Trunk 1/21/2007.

vendor/plugins/sqlite3-ruby/sqlite3/errors.rb

@@ -0,0 +1,100 @@
+#--
+# =============================================================================
+# 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/constants'
+
+module SQLite3
+
+  class Exception < ::Exception
+    @code = 0
+
+    # The numeric error code that this exception represents.
+    def self.code
+      @code
+    end
+
+    # A convenience for accessing the error code for this exception.
+    def code
+      self.class.code
+    end
+  end
+
+  class SQLException < Exception; end
+  class InternalException < Exception; end
+  class PermissionException < Exception; end
+  class AbortException < Exception; end
+  class BusyException < Exception; end
+  class LockedException < Exception; end
+  class MemoryException < Exception; end
+  class ReadOnlyException < Exception; end
+  class InterruptException < Exception; end
+  class IOException < Exception; end
+  class CorruptException < Exception; end
+  class NotFoundException < Exception; end
+  class FullException < Exception; end
+  class CantOpenException < Exception; end
+  class ProtocolException < Exception; end
+  class EmptyException < Exception; end
+  class SchemaChangedException < Exception; end
+  class TooBigException < Exception; end
+  class ConstraintException < Exception; end
+  class MismatchException < Exception; end
+  class MisuseException < Exception; end
+  class UnsupportedException < Exception; end
+  class AuthorizationException < Exception; end
+  class FormatException < Exception; end
+  class RangeException < Exception; end
+  class NotADatabaseException < Exception; end
+
+  EXCEPTIONS = [
+    nil,
+    SQLException, InternalException, PermissionException,
+    AbortException, BusyException, LockedException, MemoryException,
+    ReadOnlyException, InterruptException, IOException, CorruptException,
+    NotFoundException, FullException, CantOpenException, ProtocolException,
+    EmptyException, SchemaChangedException, TooBigException,
+    ConstraintException, MismatchException, MisuseException,
+    UnsupportedException, AuthorizationException, FormatException,
+    RangeException, NotADatabaseException
+  ].each_with_index { |e,i| e.instance_variable_set( :@code, i ) if e }
+
+  module Error
+    def check( result, db=nil, msg=nil )
+      unless result == Constants::ErrorCode::OK
+        msg = ( msg ? msg + ": " : "" ) + db.errmsg if db
+        raise(( EXCEPTIONS[result] || SQLite3::Exception ), msg)
+      end
+    end
+    module_function :check
+  end
+
+end