private LiteFilter(LiteVariable leftVar, CompareTypeEnum _compareType, LiteVariable rightVar)
{
this.filterType = FilterTypeEnum.AND;
this.filterType = FilterTypeEnum.CONDITION;
this.LeftVar = leftVar;
this.compareType = _compareType;
this.RightVar = rightVar;
}
public static LiteVariable FromField(FilterField field)
{
LiteVariable variable = new LiteVariable
{
VariableType = VariableTypeEnum.Field,
TableAlias = field.TableAlias,
FieldName = field.FieldName,
DataType = field._dataType
};
if (field.FieldNameList.Count > 1)
{
variable.FullTextType = field.FullTextType;
variable.FieldNameList = field.FieldNameList;
variable.IsFullTextSearch = true;
}
return(variable);
}
public static LiteFilter FieldIn(FilterField field, ArrayList arrayConst)
{
LiteVariable leftVar = LiteVariable.FromField(field);
return(new LiteFilter(leftVar, CompareTypeEnum.IN, LiteVariable.FromConstArray(arrayConst)));
}
public static LiteFilter FieldIn(FilterField field, LiteQuery subQuery)
{
LiteVariable leftVar = LiteVariable.FromField(field);
return(new LiteFilter(leftVar, CompareTypeEnum.IN, LiteVariable.FromSubQuery(subQuery)));
}
public static LiteFilter EqualField(FilterField left, FilterField right)
{
LiteVariable leftVar = LiteVariable.FromField(left.TableAlias, left.FieldName);
return(new LiteFilter(leftVar, CompareTypeEnum.Equal, LiteVariable.FromField(right.TableAlias, right.FieldName)));
}
private static LiteFilter CompareWith(object constValueLeft, CompareTypeEnum compareType, object constValueRight)
{
LiteVariable leftVar = LiteVariable.FromConst(constValueLeft);
return(new LiteFilter(leftVar, compareType, LiteVariable.FromConst(constValueRight)));
}
public static LiteFilter CompareWith(FilterField field, CompareTypeEnum compareType, object constValue)
{
LiteVariable leftVar = LiteVariable.FromField(field);
return(new LiteFilter(leftVar, compareType, LiteVariable.FromConst(constValue)));
}
public static LiteFilter IsNull(FilterField field)
{
return(new LiteFilter(LiteVariable.FromField(field), CompareTypeEnum.IsNull, null));
}
