public void ConstructorWhere()
{
Srt2.SqlQueries.Select select = SelectCustomer();
Or or = new Or();
or.Add(new EqualToValue("City", "Berlin"));
or.Add(new Equal("CustomerName", "ContactName"));
select.Where.Add(or);
string statement = select.ToString(DbConnectionType);
Assert.AreEqual(Expected, statement);
}
public Node Expr()
{
var node = ExprAnd();
while (CurrentToken == TokenCategory.OR)
{
var node_or = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
node_or.Add(node);
node_or.Add(ExprAnd());
node = node_or;
}
return(node);
}
/****************************************************************
* Or Expression
***************************************************************/
public Node OrExpression()
{
var expr1 = AndExpression();
if (CurrentToken == TokenCategory.OR)
{
var expr2 = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
expr2.Add(expr1);
expr2.Add(AndExpression());
expr1 = expr2;
}
return(expr1);
}
public Node ExpressionOr()
{
var n1 = ExpressionAnd();
while (CurrentToken == TokenCategory.OR)
{
var n2 = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
n2.Add(n1);
n2.Add(ExpressionAnd());
n1 = n2;
}
return(n1);
}
public Node ExprOr()
{
var and = ExprAnd();
while (Current == TokenCategory.OR)
{
var or = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
or.Add(and);
or.Add(ExprAnd());
and = or;
}
return(and);
}
public Node Expr()
{
var node1 = AndExpr();
while (Current == TokenCategory.OR)
{
var node2 = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
node2.Add(node1);
node2.Add(AndExpr());
node1 = node2;
}
return(node1);
}
public Node ExprOr()
{
Node expressionAnd = ExprAnd();
if (CurrentToken == TokenCategory.OR)
{
Node expressionOr = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
expressionOr.Add(expressionAnd);
expressionOr.Add(ExprAnd());
return(expressionOr);
}
return(expressionAnd);
}
public Node ExpressionOr()
{
var exprAnd1 = ExpressionAnd();
while (CurrentToken == TokenCategory.OR)
{
var exprAnd2 = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
exprAnd2.Add(exprAnd1);
exprAnd2.Add(ExpressionAnd());
exprAnd1 = exprAnd2;
}
return(exprAnd1);
}
// looks like two string works!
public static void CheckToString()
{
Expression x = new Expression("x");
Expression y = new Expression("y");
Expression z = new Expression("z");
And a = new And();
a.Add(x);
a.Add(y);
Or o = new Or();
o.Add(a);
o.Add(z);
Console.WriteLine(o.ToString());
}
//<expr-or>//
public Node ExpressionOr()
{
var andOne = ExpressionAnd();
var Orer = andOne;
while (CurrentToken == TokenCategory.OR)
{
Orer = new Or()
{
AnchorToken = Expect(TokenCategory.OR)
};
Orer.Add(andOne);
Orer.Add(ExpressionAnd());
andOne = Orer;
}
return(Orer);
}
private void HandleOr(BinaryExpression b)
{
Expression left = b.Left;
Expression right = b.Right;
#region handle alone boolean value
MemberExpression leftMember = b.Left as MemberExpression;
if (leftMember != null)
{
if (leftMember.Expression != null && leftMember.Expression.NodeType == ExpressionType.Parameter)
{
if (leftMember.Type == typeof(bool)) //ex: WHERE .. && Active
{
BinaryExpression exp = BinaryExpression.MakeBinary(ExpressionType.Equal, leftMember, Expression.Constant(true));
left = exp;
}
}
}
MemberExpression rightMember = b.Right as MemberExpression;
if (rightMember != null)
{
if (rightMember.Expression != null && rightMember.Expression.NodeType == ExpressionType.Parameter)
{
if (rightMember.Type == typeof(bool)) //ex: WHERE .. && Active
{
BinaryExpression exp = BinaryExpression.MakeBinary(ExpressionType.Equal, rightMember, Expression.Constant(true));
right = exp;
}
}
}
#endregion
if (criteria == null)
{
criteria = new Or();
this.Visit(left);
this.Visit(right);
((Or)criteria).Add(criteriaValues[left], criteriaValues[right]);
}
else
{
Or newCriteria = new Or();
this.Visit(left);
this.Visit(right);
newCriteria.Add(criteriaValues[left], criteriaValues[right]);
criteriaValues[b] = newCriteria;
}
}
