Ejemplo n.º 1
0
        internal async Task <SearchResultsInfo> ParseAsync(string searchTerms, int maxResults, string languageId, bool haveUser, List <DataProviderFilterInfo> extraFilters = null)
        {
            using (SearchDataProvider searchDP = new SearchDataProvider()) {
                bool haveMore = false;

                extraFilters = DataProviderFilterInfo.Join(extraFilters, new DataProviderFilterInfo {
                    Field = nameof(SearchData.Language), Operator = "==", Value = languageId
                });
                if (haveUser)
                {
                    extraFilters = DataProviderFilterInfo.Join(extraFilters, new DataProviderFilterInfo {
                        Field = nameof(SearchData.AllowAnyUser), Operator = "==", Value = true
                    });
                }
                else
                {
                    extraFilters = DataProviderFilterInfo.Join(extraFilters, new DataProviderFilterInfo {
                        Field = nameof(SearchData.AllowAnonymous), Operator = "==", Value = true
                    });
                }

                string         s    = searchTerms;
                BuildNodesInfo urls = await BuildNodesAsync(searchDP, s, languageId, haveUser, extraFilters);

                List <DataProvider.SearchResult> results = (from u in urls.Data group u by u.SearchDataUrlId into g select new SearchResult {
                    Count = g.Sum(x => x.Count),
                    PageUrl = g.Select(m => m.PageUrl).FirstOrDefault(),
                    DateCreated = g.Select(m => m.DatePageCreated).FirstOrDefault(),
                    DateUpdated = g.Select(m => m.DatePageUpdated).FirstOrDefault(),
                    Description = g.Select(m => m.PageTitle).FirstOrDefault(),
                    PageSummary = g.Select(m => m.PageSummary).FirstOrDefault(),
                    PageSecurity = g.Select(m => m.PageSecurity).FirstOrDefault(),
                    CustomData = g.Select(m => m.CustomData).FirstOrDefault(),
                }).OrderByDescending(m => m.Count).Take(maxResults + 1).ToList();

                haveMore = (results.Count >= maxResults);
                return(new Search.DataProvider.SearchResultDataProvider.SearchResultsInfo {
                    Data = results,
                    HaveMore = haveMore,
                });
            }
        }
Ejemplo n.º 2
0
        // generate a list of url (ids) based on search terms
        private async Task <BuildNodesInfo> BuildNodesAsync(SearchDataProvider searchDP, string search, string languageId, bool haveUser, List <DataProviderFilterInfo> extraFilters)
        {
            if (string.IsNullOrEmpty(search))
            {
                return(new BuildNodesInfo());
            }

            BuildNodesInfo list = null;

            for ( ; ;)
            {
                search = search.Trim();
                if (search.Length <= 0)
                {
                    break;
                }

                char c = search[0];
                if (c == '(')
                {
                    parenLevel++;
                    search = search.Remove(0, 1);
                    list   = await BuildNodesAsync(searchDP, search, languageId, haveUser, extraFilters);

                    search = list.Search;
                }
                else if (c == ')')
                {
                    if (parenLevel <= 0)
                    {
                        throw new Error(this.__ResStr("invQueryCloseParen", "Invalid query - too many ')'"));
                    }
                    parenLevel--;
                    list.Search = search.Remove(0, 1);
                    return(list);
                }
                else
                {
                    string token;
                    int    irp = search.IndexOf(')');
                    int    i   = search.IndexOf(' ');
                    if (irp >= 0 && (irp < i || i < 0))
                    {
                        i = irp;
                    }
                    int ilp = search.IndexOf('(');
                    if (ilp >= 0 && (ilp < i || i < 0))
                    {
                        i = ilp;
                    }
                    if (i < 0)
                    {
                        token  = search;
                        search = "";
                    }
                    else
                    {
                        token  = search.Substring(0, i);
                        search = search.Remove(0, i);
                    }
                    if (list != null)
                    {
                        if (string.Compare(token, GetKeyWordOr(), true) == 0)
                        {
                            BuildNodesInfo rhsList = await BuildNodesAsync(searchDP, search, languageId, haveUser, extraFilters);

                            search    = rhsList.Search;
                            list.Data = list.Data.Union(rhsList.Data, new SearchDataComparer()).ToList();
                        }
                        else if (string.Compare(token, GetKeyWordAnd(), true) == 0)
                        {
                            BuildNodesInfo rhsList = await BuildNodesAsync(searchDP, search, languageId, haveUser, extraFilters);

                            search    = rhsList.Search;
                            list.Data = list.Data.Intersect(rhsList.Data, new SearchDataComparer()).ToList();
                        }
                        else
                        {
                            List <DataProviderFilterInfo> filters = DataProviderFilterInfo.Copy(extraFilters);
                            if (token.EndsWith("*"))
                            {
                                token   = token.TrimEnd(new char[] { '*' });
                                filters = DataProviderFilterInfo.Join(filters, new DataProviderFilterInfo {
                                    Field = nameof(SearchData.SearchTerm), Operator = "StartsWith", Value = token
                                });
                            }
                            else
                            {
                                filters = DataProviderFilterInfo.Join(filters, new DataProviderFilterInfo {
                                    Field = nameof(SearchData.SearchTerm), Operator = "==", Value = token
                                });
                            }
                            DataProviderGetRecords <SearchData> rhsList = await searchDP.GetItemsWithUrlAsync(0, 0, null, filters);

                            list.Data = list.Data.Intersect(rhsList.Data, new SearchDataComparer()).ToList();
                        }
                    }
                    else
                    {
                        List <DataProviderFilterInfo> filters = DataProviderFilterInfo.Copy(extraFilters);
                        if (token.EndsWith("*"))
                        {
                            token   = token.TrimEnd(new char[] { '*' });
                            filters = DataProviderFilterInfo.Join(filters, new DataProviderFilterInfo {
                                Field = nameof(SearchData.SearchTerm), Operator = "StartsWith", Value = token
                            });
                        }
                        else
                        {
                            filters = DataProviderFilterInfo.Join(filters, new DataProviderFilterInfo {
                                Field = nameof(SearchData.SearchTerm), Operator = "==", Value = token
                            });
                        }
                        list = new BuildNodesInfo {
                            Search = search
                        };
                        list.Data = (await searchDP.GetItemsWithUrlAsync(0, 0, null, filters)).Data;
                        search    = list.Search;
                    }
                }
            }
            if (parenLevel > 0)
            {
                throw new Error(this.__ResStr("invQueryOpenParen", "Invalid query - unmatched '('"));
            }
            list.Search = search;
            return(list);
        }