public override SPGENEntityEvalLinqExprResult EvalMethodCall(MethodCallExpression mce, SPGENEntityEvalLinqExprArgs args)
{
if (_evalMethodCallFunction != null)
{
return _evalMethodCallFunction(mce, args);
}
else
{
return base.EvalMethodCall(mce, args);
}
}
public virtual SPGENEntityEvalLinqExprResult EvalMethodCall(MethodCallExpression mce, SPGENEntityEvalLinqExprArgs args)
{
if (args.Field is SPFieldLookup)
{
return EvalMethodCallLookup(mce, args);
}
else
{
return EvalMethodCallDefault(mce, args);
}
}
public override SPGENEntityEvalLinqExprResult EvalComparison(SPGENEntityEvalLinqExprArgs args)
{
if (_evalComparisonFunction != null)
{
return _evalComparisonFunction(args);
}
else
{
return base.EvalComparison(args);
}
}
public override SPGENEntityEvalLinqExprResult EvalComparison(SPGENEntityEvalLinqExprArgs args)
{
if (args.Value == null && !_isLookupId)
{
var result = new SPGENEntityEvalLinqExprResult(args);
result.ValueNode.SetAttribute("Type", "Text");
return result;
}
else
{
var result = base.EvalComparison(args);
if (_isLookupId)
result.MakeLookupId();
return result;
}
}
public override SPGENEntityEvalLinqExprResult EvalMethodCall(MethodCallExpression mce, SPGENEntityEvalLinqExprArgs args)
{
if (mce.Method.Name != "Contains")
throw new NotSupportedException("The method '" + mce.Method.Name + "' is not supported in this context.");
if (args.Operand == "Not")
throw new NotSupportedException("The operand 'Not' is not supported in this context.");
SPGENEntityEvalLinqExprResult result;
if (SPGENCommon.HasInterface(SPGENCommon.GetFieldValueType(args.Field), typeof(IEnumerable)))
{
if (mce.Arguments.Count == 1)
{
args.Value = LambdaExpression.Lambda(mce.Arguments[0]).Compile().DynamicInvoke();
}
else if (mce.Arguments.Count == 2)
{
args.Value = LambdaExpression.Lambda(mce.Arguments[1]).Compile().DynamicInvoke();
}
else
{
throw new NotSupportedException("The method '" + mce.Method.Name + "' contained arguments that is not supported.");
}
if (args.Value == null)
throw new NotSupportedException("The Contains method does not support null as in-parameter.");
result = new SPGENEntityEvalLinqExprResult(args, "Includes");
result.ValueNode.SetAttribute("Type", "Lookup");
result.ValueNode.InnerText = args.Value.ToString();
}
else
{
result = base.EvalMethodCall(mce, args);
}
if (_isLookupId)
result.MakeLookupId();
return result;
}
private SPGENEntityEvalLinqExprResult EvalMethodCallDefault(MethodCallExpression mce, SPGENEntityEvalLinqExprArgs args)
{
SPGENEntityEvalLinqExprResult result = null;
MethodInfo method = mce.Method;
if (method.DeclaringType == typeof(string))
{
if (method.Name == "StartsWith")
{
if (args.Operand == "Not")
throw new NotSupportedException("The operand 'Not' is not supported in this context.");
args.Value = LambdaExpression.Lambda(mce.Arguments[0]).Compile().DynamicInvoke();
result = new SPGENEntityEvalLinqExprResult(args, "BeginsWith");
}
else if (method.Name == "Contains")
{
if (args.Operand == "Not")
throw new NotSupportedException("The operand 'Not' is not supported in this context.");
args.Value = LambdaExpression.Lambda(mce.Arguments[0]).Compile().DynamicInvoke();
result = new SPGENEntityEvalLinqExprResult(args, "Contains");
}
}
else if (SPGENCommon.HasInterface(SPGENCommon.GetFieldValueType(args.Field), typeof(IEnumerable)))
{
if (method.Name == "Contains")
{
if (args.Operand == "Not")
throw new NotSupportedException("The operand 'Not' is not supported in this context.");
args.Value = LambdaExpression.Lambda(mce.Arguments[0]).Compile().DynamicInvoke();
if (args.Value == null)
throw new NotSupportedException("The Contains method does not support null as a paramter.");
result = new SPGENEntityEvalLinqExprResult(args, "Contains");
}
}
if (result == null)
throw new NotSupportedException(string.Format("The method '{0}' is not supported for the entity property '{1}'.", method.Name, args.SourceProperty.Name));
SetValueNode(args, result.ValueNode);
return result;
}
public virtual SPGENEntityEvalLinqExprResult EvalComparison(SPGENEntityEvalLinqExprArgs args)
{
SPGENEntityEvalLinqExprResult result = null;
if (args.Value == null)
{
if (args.Field is SPFieldLookup && !args.IsLookupIdProperty)
{
result = new SPGENEntityEvalLinqExprResult(args);
result.ValueNode.SetAttribute("Type", "Lookup");
return result;
}
if (args.Operand == "Eq")
{
result = new SPGENEntityEvalLinqExprResult(args, "IsNull");
}
else if (args.Operand == "Neq")
{
result = new SPGENEntityEvalLinqExprResult(args, "IsNotNull");
}
else
{
result = new SPGENEntityEvalLinqExprResult(args);
}
//Remove value node
result.ComparisonNode.RemoveChild(result.ComparisonNode.LastChild);
return result;
}
else
{
result = new SPGENEntityEvalLinqExprResult(args);
}
if (args.Value is object[])
{
var valuesElement = result.ValueNode.OwnerDocument.CreateElement("Values");
foreach (object o in (object[])args.Value)
{
var v = result.ValueNode.OwnerDocument.CreateElement("Value");
args.Value = o;
SetValueNode(args, v);
valuesElement.AppendChild(v);
}
var parent = result.ValueNode.ParentNode;
parent.ReplaceChild(valuesElement, result.ValueNode);
}
else
{
SetValueNode(args, result.ValueNode);
}
if (args.Field is SPFieldLookup && args.IsLookupIdProperty)
result.MakeLookupId();
return result;
}
private void SetValueNode(SPGENEntityEvalLinqExprArgs args, XmlElement valueElement)
{
if (args.Field is SPFieldBoolean)
{
valueElement.SetAttribute("Type", "Boolean");
valueElement.InnerText = (bool)args.Value == true ? "1" : "0";
}
else if (args.Field is SPFieldDateTime)
{
valueElement.SetAttribute("Type", "DateTime");
bool includeTimeValue = true;
if (args.Expression is MemberExpression)
{
var mex = args.Expression as MemberExpression;
if (mex.Member.DeclaringType == typeof(DateTime))
{
if (mex.Member.Name == "Date")
includeTimeValue = false;
}
}
valueElement.SetAttribute("IncludeTimeValue", includeTimeValue.ToString().ToUpper());
valueElement.InnerText = SPUtility.CreateISO8601DateTimeFromSystemDateTime((DateTime)args.Value);
}
else if (args.Field is SPFieldNumber)
{
valueElement.SetAttribute("Type", "Number");
}
else if (args.Field is SPFieldLookup)
{
valueElement.SetAttribute("Type", "Lookup");
}
else if (args.Field is SPFieldGuid)
{
valueElement.SetAttribute("Type", "Guid");
}
else if (args.Field.TypeAsString == "Counter")
{
valueElement.SetAttribute("Type", "Counter");
}
else
{
valueElement.SetAttribute("Type", "Text");
}
if (args.Value != null && string.IsNullOrEmpty(valueElement.InnerText))
valueElement.InnerText = args.Value.ToString();
}
