public void Visit(LessThanOrEqualsOperator op)
{
_conditionWriter.WriteStartElement("le");
op.Left.Visit(this);
op.Right.Visit(this);
_conditionWriter.WriteEndElement();
}
public virtual IExpression Clone(LessThanOrEqualsOperator op)
{
return(new LessThanOrEqualsOperator()
{
Left = CloneAndReturn(op.Left),
Right = CloneValue(op.Left, op.Right)
}.Normalize());
}
public virtual void Visit(LessThanOrEqualsOperator op)
{
AddParenthesesIfNeeded(op, () =>
{
op.Left.Visit(this);
Writer.Write(" <= ");
op.Right.Visit(this);
});
}
public void Visit(LessThanOrEqualsOperator op)
{
AddParenthesesIfNeeded(op, () =>
{
op.Left.Visit(this);
WriteEncoded(" le ");
op.Right.Visit(this);
});
}
public virtual void Visit(LessThanOrEqualsOperator op)
{
op.Left.Visit(this);
op.Right.Visit(this);
}
void IExpressionVisitor.Visit(LessThanOrEqualsOperator op)
{
_clone = Clone(op);
}
/// <summary>Closes one element and pops the corresponding namespace scope.</summary>
/// <exception cref="InvalidOperationException">This results in an invalid XML document.</exception>
/// <exception cref="InvalidOperationException">An <see cref="XmlWriter" /> method was called before a previous asynchronous operation finished. In this case, <see cref="InvalidOperationException" /> is thrown with the message “An asynchronous operation is already in progress.”</exception>
public override void WriteEndElement()
{
if (_stack.Count > 0)
{
var value = _buffer.ToString() ?? "";
_buffer.Length = 0;
var last = _stack.Pop();
if (_attrBuffer.TryGetValue(ParameterSubstitution.DateRangeAttribute, out var dateRange) &&
ParameterSubstitution.TryDeserializeDateRange(dateRange, out var dateStart, out var dateEnd) &&
(dateStart.HasValue || dateEnd.HasValue))
{
var property = (last as BinaryOperator)?.Left ?? (last as BetweenOperator)?.Left;
if (property == null)
{
throw new NotSupportedException();
}
if (dateStart.HasValue && dateEnd.HasValue)
{
last = new BetweenOperator()
{
Left = property,
Min = new DateOffsetLiteral(_context, dateStart.Value, false),
Max = new DateOffsetLiteral(_context, dateEnd.Value, true),
}.Normalize();
}
else if (dateStart.HasValue)
{
last = new GreaterThanOrEqualsOperator()
{
Left = property,
Right = new DateOffsetLiteral(_context, dateStart.Value, false)
}.Normalize();
}
else
{
last = new LessThanOrEqualsOperator()
{
Left = property,
Right = new DateOffsetLiteral(_context, dateEnd.Value, true)
}.Normalize();
}
}
else
{
if (last is IsOperator isOp)
{
switch (value)
{
case "defined":
isOp.Right = IsOperand.Defined;
break;
case "not defined":
isOp.Right = IsOperand.NotDefined;
break;
case "not null":
isOp.Right = IsOperand.NotNull;
break;
case "null":
isOp.Right = IsOperand.Null;
break;
case "":
break;
default:
throw new NotSupportedException();
}
}
else if (last is InOperator inOp)
{
inOp.Right = ListExpression.FromSqlInClause(value);
}
else if (last is BetweenOperator betweenOp)
{
betweenOp.SetMinMaxFromSql(value);
}
else if (last is PropertyReference property)
{
if (_stack.OfType <Join>().Last().Right.Joins.Any(j => j.Right.TypeProvider == property))
{
last = null;
}
else
{
last = new EqualsOperator()
{
Left = property
};
}
}
if (!(last is ILogical) && last is BinaryOperator binOp)
{
if (value == "__now()")
{
binOp.Right = new Functions.CurrentDateTime();
}
else if (binOp is LikeOperator)
{
binOp.Right = AmlLikeParser.Instance.Parse(value);
}
else
{
binOp.Right = NormalizeLiteral((PropertyReference)binOp.Left, value, _context);
}
}
}
if (last is BinaryOperator genOp &&
genOp.Left is PropertyReference prop &&
(prop.Name == "generation" || prop.Name == "id"))
{
Query.Version = new VersionCriteria()
{
Condition = genOp
};
if (prop.Name == "id")
{
AddToCondition(genOp);
}
}
