public Expression <Func <TEntity, bool> > TranslateFilter <TEntity>(
bool processPersianChars = true)
where TEntity : class
{
QueryObject <TEntity> queryObject = new QueryObject <TEntity>();
ParameterExpression parameterExpression = Expression.Parameter(typeof(TEntity), "entity");
foreach (FilterData filter in this.Filters)
{
if (filter.Filters != null && filter.Filters.Any <FilterData>())
{
Expression <Func <TEntity, bool> > query = new FilterInfo()
{
Logic = filter.Logic,
Filters = filter.Filters
}.TranslateFilter <TEntity>(true);
if (string.IsNullOrWhiteSpace(this.Logic))
{
queryObject.And(query);
}
else if (this.Logic.ToLower() == "and")
{
queryObject.And(query);
}
else
{
queryObject.Or(query);
}
}
else if (processPersianChars && filter.Value != null && (filter.Value.Contains("ي") || filter.Value.Contains("ك") || filter.Value.Contains("ی") || filter.Value.Contains("ک")))
{
FilterInfo filterInfo = new FilterInfo()
{
Logic = "or"
};
filterInfo.Filters.Add(filter);
string str = "";
if (filter.Value.Contains("ي") || filter.Value.Contains("ك"))
{
str = filter.Value.Replace("ي", "ی").Replace("ك", "ک");
}
else if (filter.Value.Contains("ی") || filter.Value.Contains("ک"))
{
str = filter.Value.Replace("ی", "ي").Replace("ک", "ك");
}
filterInfo.Filters.Add(new FilterData()
{
Field = filter.Field,
Logic = filter.Logic,
Operator = filter.Operator,
Value = str
});
Expression <Func <TEntity, bool> > query = filterInfo.TranslateFilter <TEntity>(false);
if (string.IsNullOrWhiteSpace(this.Logic))
{
queryObject.And(query);
}
else if (this.Logic.ToLower() == "and")
{
queryObject.And(query);
}
else
{
queryObject.Or(query);
}
}
else
{
string mapPropertyName = PropertyMapCollection.GetMapPropertyName <TEntity>(filter.Field);
Expression bodyExpression = FilterInfo.CreateBodyExpression(parameterExpression, mapPropertyName, filter.Operator, filter.Value);
if (bodyExpression != null)
{
Expression <Func <TEntity, bool> > query = Expression.Lambda <Func <TEntity, bool> >(bodyExpression, parameterExpression);
if (string.IsNullOrWhiteSpace(this.Logic))
{
queryObject.And(query);
}
else if (this.Logic.ToLower() == "and")
{
queryObject.And(query);
}
else
{
queryObject.Or(query);
}
}
}
}
return(queryObject.Query());
}