Merge pull request #312 from amroel/NH-3656_refactored

NH-3656 firebird change parameter type from currency to decimal

Author: oskarb

lib/teamcity/firebird/NHibernate.Test.last-results.xml

@@ -14895,10 +14895,10 @@ TearDown : Test didn't clean up after itself. session closed: True database clea
                       <test-case name="NHibernate.Test.TypesTest.CharClassFixture.ReadWrite" executed="True" result="Success" success="True" asserts="0" />
                     </results>
                   </test-suite>
-                  <test-suite type="TestFixture" name="CurrencyTypeFixture" executed="True" result="Failure" success="False" asserts="0">
+                  <test-suite type="TestFixture" name="CurrencyTypeFixture" executed="True" result="Success" success="True" asserts="0">
                     <results>
                       <test-case name="NHibernate.Test.TypesTest.CurrencyTypeFixture.Equals" executed="True" result="Success" success="True" asserts="1" />
-                      <test-case name="NHibernate.Test.TypesTest.CurrencyTypeFixture.ReadWrite" executed="True" result="Failure" success="False" asserts="0">
+                      <test-case name="NHibernate.Test.TypesTest.CurrencyTypeFixture.ReadWrite" executed="True" result="Success" success="True" asserts="0">
                         <failure>
                           <message><![CDATA[System.ArgumentException : Invalid data type
 TearDown : Test didn't clean up after itself. session closed: False database cleaned: True connection closed: True]]></message>

src/NHibernate/Driver/FirebirdClientDriver.cs

@@ -50,6 +50,15 @@ public override string NamedPrefix
 			get { return "@"; }
 		}
 
+		protected override void InitializeParameter(IDbDataParameter dbParam, string name, SqlType sqlType)
+		{
+			var convertedSqlType = sqlType;
+			if (convertedSqlType.DbType == DbType.Currency)
+				convertedSqlType = new SqlType(DbType.Decimal);
+
+			base.InitializeParameter(dbParam, name, convertedSqlType);
+		}
+
 		public override void AdjustCommand(IDbCommand command)
 		{
 			var expWithParams = GetStatementsWithCastCandidates(command.CommandText);