private bool TryHandleContains(SubQueryExpression subquery, ContainsResultOperator ro)
{
switch (subquery.QueryModel.MainFromClause.FromExpression)
{
case ConstantExpression expr:
if (!(expr.Value is IList list))
{
return(false);
}
CurrentExpression.Add("IN");
Visit(ro.Item);
var opList = new List <object> {
"[]"
};
opList.AddRange(list.Cast <object>());
CurrentExpression.Add(opList);
return(true);
case MemberExpression expr:
var last = _currentExpression;
CurrentExpression.Add("ARRAY_CONTAINS()");
Visit(expr);
Visit(ro.Item);
_currentExpression = last;
return(true);
}
return(false);
}
private void BackButton_Click(object sender, RoutedEventArgs e)
{
if (Display != null && Display.Length > 0)
{
// On supprime le dernier caractère du calcul
Display = Display.Remove(Display.Length - 1);
CurrentExpression = CurrentExpression.Remove(CurrentExpression.Length - 2);
}
}
private void AssignOperatorToExpression(string oprtr)
{
if (DisplayText.EndWithAny(Models.Calculator.OPERATORS))
{
CurrentExpression.Remove(CurrentExpression.Length - 1, 1);
}
CurrentExpression.Append(oprtr);
DisplayText = CurrentExpression.ToString();
}
private void OnEqualPressCommandExecute(object p)
{
if (CurrentExpression.Content != "")
{
CurrentExpression.CalculateResult();
ExpressionHistory.Add(CurrentExpression);
OnPropertyChanged("CurrentExpression");
CurrentExpression = new MathExpression();
}
}
protected override Expression VisitMember(MemberExpression node)
{
var sb = new StringBuilder();
var currentNode = (Expression)node;
while (currentNode.NodeType == ExpressionType.MemberAccess || currentNode.NodeType == ExpressionType.Call)
{
if (currentNode.NodeType == ExpressionType.Call)
{
var ce = (currentNode as MethodCallExpression);
if (ce.Method.Name != "get_Item")
{
return(base.VisitMember(node));
}
var me = ce.Object as MemberExpression;
var index = ((ConstantExpression)ce.Arguments[0]).Value;
sb.Insert(0, $".{me.Member.Name}[{index}]");
currentNode = me.Expression;
}
else
{
var me = (currentNode as MemberExpression);
var mappingProperty =
me.Member.GetCustomAttribute(typeof(JsonPropertyAttribute)) as JsonPropertyAttribute;
var name = mappingProperty?.PropertyName ?? me.Member.Name;
sb.Insert(0, $".{name}");
currentNode = me.Expression;
}
}
if (IncludeDbNames && currentNode is QuerySourceReferenceExpression sourceRef)
{
sb.Insert(0, $".{sourceRef.ReferencedQuerySource.ItemName}");
}
if (_currentMode == Mode.AllOperator)
{
sb.Remove(0, 1);
CurrentExpression.Add(new[] { "?X", sb.ToString() });
}
else
{
CurrentExpression.Add(new[] { sb.ToString() });
}
return(node);
}
private void OnDeletePressCommandExecute(object p)
{
CurrentExpression.Delete();
OnPropertyChanged("CurrentExpression");
}
private void OnClearPressCommandExecute(object p)
{
CurrentExpression.Clear();
OnPropertyChanged("CurrentExpression");
}
private void OnButtonPressCommandExecute(object p)
{
CurrentExpression.AddChar(p);
OnPropertyChanged("CurrentExpression");
}
private void HandleSequence(MethodCallExpression expression)
{
CurrentExpression.Add(new[] { "._sequence" });
}
private void HandleId(MethodCallExpression expression)
{
CurrentExpression.Add(new[] { "._id" });
}
