예제 #1
0
        public static object[] GetParameters(Type modelType, FilterCondition[] filters)
        {
            if (filters == null)
            {
                return(null);
            }

            List <object> parameters = new List <object>();

            for (int i = 0; i < filters.Length; i++)
            {
                IFilter filter = GetFilter(filters[i].FilterType);
                if (!filters[i].Internal)
                {
                    filter.CopyPropertiesValue(filters[i]);
                }

                object parameter = GetParameter(modelType, filters[i]);
                if (parameter != null)
                {
                    parameters.Add(parameter);
                }
            }

            return(parameters.ToArray());
        }
예제 #2
0
        private static string JoinWhereClause(Type modelType, FilterCondition[] conditions)
        {
            var    attr          = modelType.GetCustomAttributes(true).OfType <DataEntityAttribute>().FirstOrDefault();
            string whereOperator = (attr != null && !string.IsNullOrEmpty(attr.WhereOperator)) ? attr.WhereOperator : " && ";

            StringBuilder whereClause    = new StringBuilder();
            int           parameterIndex = 0;

            for (int i = 0; i < conditions.Length; i++)
            {
                if (!conditions[i].Internal)
                {
                    IFilter filter = GetFilter(conditions[i].FilterType);
                    filter.CopyPropertiesValue(conditions[i]);
                    whereClause.AppendFormat("{0}{1}", filter.GetWhereClause(conditions[i], parameterIndex), whereOperator);
                }
                else
                {
                    IFilter filter = GetFilter(conditions[i].FilterType);
                    whereClause.AppendFormat("{0} ", filter.GetWhereClauseInternal(conditions[i], parameterIndex));
                }

                if (GetParameter(modelType, conditions[i]) != null)
                {
                    parameterIndex++;
                }
            }

            string where = whereClause.ToString();
            if (where.EndsWith(whereOperator))
            {
                where = where.Substring(0, where.Length - whereOperator.Length);
            }

            return(where);
        }
예제 #3
0
        public static List <IFilter> GenerateFilters(Type modelType)
        {
            var filters = new List <IFilter>();
            var dict    = new List <FilterDictionary>();

            IPrincipal user = null;

            if (System.Web.HttpContext.Current != null)
            {
                user = System.Web.HttpContext.Current.User;
            }


            // Order the columns of this table .
            List <PropertyInfo> filterList = modelType.GetProperties().Where(p => p.GetCustomAttributes(true).OfType <FilterWebapiAttribute>().DefaultIfEmpty().FirstOrDefault() != null).OrderBy(o => o.GetCustomAttributes(true).OfType <FilterWebapiAttribute>().First().GroupOrder).ToList();

            if (filterList.Count == 0)
            {
                return(null);
            }

            foreach (PropertyInfo prop in filterList)
            {
                foreach (Attribute att in prop.GetCustomAttributes(true).OfType <FilterWebapiAttribute>().OrderBy(f => f.Order))
                {
                    FilterWebapiAttribute filterAtt = att as FilterWebapiAttribute;
                    if (filterAtt == null)
                    {
                        continue;
                    }

                    if (user != null && !string.IsNullOrEmpty(filterAtt.Permission))
                    {
                        string[]      rolesRequired = filterAtt.Permission.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries);
                        RolePrincipal principal     = (RolePrincipal)System.Web.HttpContext.Current.User;
                        if (rolesRequired.Length > 0 && rolesRequired.Where(r => principal.IsInRole(r)).Count() == 0)
                        {
                            continue;
                        }
                    }

                    IFilter f = Activator.CreateInstance(filterAtt.FilterType) as IFilter;
                    f.Property = prop.Name;
                    if (string.IsNullOrEmpty(filterAtt.DisplayName))
                    {
                        f.DisplayName = f.Property;
                    }

                    var attLength = prop.GetCustomAttributes(true).OfType <StringLengthAttribute>().FirstOrDefault();
                    if (attLength != null)
                    {
                        f.Length = attLength.MaximumLength;
                    }
                    f.CopyPropertiesValue(filterAtt);

                    if (f.Internal || (dict.Count(d => d.Property == f.Property && d.Type == f.GetType().Name&& d.DefaultOperator == f.DefaultOperator && d.DefaultValue.Equals(f.DefaultValue)) == 0))
                    {
                        filters.Add(f);
                        dict.Add(new FilterDictionary {
                            Property = f.Property, Type = f.GetType().Name, DefaultOperator = f.DefaultOperator, DefaultValue = f.DefaultValue
                        });
                    }
                }
            }

            return(filters);
        }