示例#1
0
        public override object InternalExecute(Program program, object[] arguments)
        {
            var tableVar           = RESTUtilities.ResolveTableVarName(program, (string)arguments[0]);
            var identifyingKey     = RESTUtilities.FindIdentifyingKey(program, tableVar);
            var keyValues          = RESTUtilities.GetKeyValues(program, identifyingKey, (string)arguments[1]);
            var keyEqualExpression = Compiler.BuildKeyEqualExpression(program.Plan, String.Empty, "AKey", new Schema.RowType(identifyingKey.Columns).Columns, keyValues.DataType.Columns);

            var updateStatement = new UpdateStatement();

            updateStatement.Target = new IdentifierExpression(tableVar.Name);

            var row = (IRow)arguments[2];

            for (int i = 0; i < row.DataType.Columns.Count; i++)
            {
                updateStatement.Columns.Add(new UpdateColumnExpression(new IdentifierExpression(row.DataType.Columns[i].Name), new IdentifierExpression(Schema.Object.Qualify(row.DataType.Columns[i].Name, "ARow"))));
            }

            updateStatement.Condition = keyEqualExpression;

            var statement  = new D4TextEmitter().Emit(updateStatement);
            var dataParams = new DataParams();

            dataParams.Add(new DataParam("AKey", keyValues.DataType, Modifier.In, keyValues));
            dataParams.Add(new DataParam("ARow", row.DataType, Modifier.In, row));

            RESTUtilities.Execute(program, statement, dataParams);

            return(null);
        }
示例#2
0
        public override object InternalExecute(Program program, object[] arguments)
        {
            var tableVar   = RESTUtilities.ResolveTableVarName(program, (string)arguments[0]);
            var expression = String.Format("select {0}", tableVar.Name);

            return(RESTUtilities.Evaluate(program, expression, tableVar, null));
        }
示例#3
0
        public override object InternalExecute(Program program, object[] arguments)
        {
            var tableVar = RESTUtilities.ResolveTableVarName(program, (string)arguments[0]);

            var insertStatement = new InsertStatement(new IdentifierExpression("ARow"), new IdentifierExpression(tableVar.Name));
            var statement       = new D4TextEmitter().Emit(insertStatement);
            var dataParams      = new DataParams();
            var row             = (IRow)arguments[1];

            dataParams.Add(new DataParam("ARow", row.DataType, Modifier.In, row));

            RESTUtilities.Execute(program, statement, dataParams);

            return(null);
        }
示例#4
0
        public override void DetermineDataType(Plan plan)
        {
            base.DetermineDataType(plan);

            if (!Nodes[0].IsLiteral)
            {
                throw new CompilerException(CompilerException.Codes.LiteralArgumentRequired, "ATableName");
            }

            var tableVarName = (string)plan.ExecuteNode(Nodes[0]);

            var tableVar = RESTUtilities.ResolveTableVarName(plan, tableVarName);

            DataType = tableVar.DataType;
        }
示例#5
0
        public override object InternalExecute(Program program, object[] arguments)
        {
            var tableVar           = RESTUtilities.ResolveTableVarName(program, (string)arguments[0]);
            var identifyingKey     = RESTUtilities.FindIdentifyingKey(program, tableVar);
            var keyValues          = RESTUtilities.GetKeyValues(program, identifyingKey, (string)arguments[1]);
            var keyEqualExpression = Compiler.BuildKeyEqualExpression(program.Plan, String.Empty, "AKey", new Schema.RowType(identifyingKey.Columns).Columns, keyValues.DataType.Columns);
            var tableVarExpression = new IdentifierExpression(tableVar.Name);
            var restrictExpression = new RestrictExpression(tableVarExpression, keyEqualExpression);
            var expression         = new D4TextEmitter().Emit(restrictExpression);
            var dataParams         = new DataParams();

            dataParams.Add(new DataParam("AKey", keyValues.DataType, Modifier.In, keyValues));

            return(RESTUtilities.EvaluateSingleton(program, expression, dataParams));
        }