void FilterSimple(WebData webData, ITable table, string fieldName, string filter, int page)
{
if (table == null)
{
throw new ArgumentNullException(nameof(table));
}
if (fieldName == null)
{
throw new ArgumentNullException(nameof(fieldName));
}
Search search;
long rowCount;
if (filter == null)
{
search = Search.None;
rowCount = table.RowCount;
}
else
{
search = Search.FieldLike(fieldName, MDBSearch.Text(filter));
rowCount = table.Count(search);
}
ResultOption options = ResultOption.Limit(RowsPerPage) + ResultOption.SortAscending(fieldName);
if (page > 0)
{
options += ResultOption.Offset(page * RowsPerPage);
}
var rows = table.GetRows(search, options);
webData.Result.AddMessage(webData.Method, "Retrieved {0}.", table);
AddPagination(webData, page, rowCount);
webData.Result.AddRows(rows, table.Layout);
}
void FilterList(WebData webData, ITable table, string nameField, string guidField, string text)
{
var ids = new Set <long>();
if (text == null)
{
ids.IncludeRange(table.FindRows(Search.None, ResultOption.Limit(20)));
}
else
{
ids.AddRange(table.FindRows(Search.FieldLike(nameField, MDBSearch.Text(text + "%")) & Search.FieldNotEquals(guidField, null), ResultOption.SortAscending(nameField) + ResultOption.Group(nameField) + ResultOption.Group(guidField) + ResultOption.Limit(20)));
if (ids.Count < 20)
{
ids.IncludeRange(table.FindRows(Search.FieldLike(nameField, MDBSearch.Text("% " + text + "%")) & Search.FieldNotEquals(guidField, null), ResultOption.SortAscending(nameField) + ResultOption.Group(nameField) + ResultOption.Group(guidField) + ResultOption.Limit(20)));
}
if (ids.Count < 20)
{
ids.IncludeRange(table.FindRows(Search.FieldLike(nameField, MDBSearch.Text(text + "%")) & Search.FieldEquals(guidField, null), ResultOption.SortAscending(nameField) + ResultOption.Group(nameField) + ResultOption.Limit(20 - ids.Count)));
}
if (ids.Count < 20)
{
ids.IncludeRange(table.FindRows(Search.FieldLike(nameField, MDBSearch.Text("% " + text + "%")) & Search.FieldEquals(guidField, null), ResultOption.SortAscending(nameField) + ResultOption.Group(nameField) + ResultOption.Limit(20 - ids.Count)));
}
}
var json = new JsonWriter();
json.BeginArray("results");
if (ids.Count > 0)
{
//get items
var values = table.GetValues <string>(nameField, false, ids.SubRange(0, Math.Min(20, ids.Count)));
foreach (var value in values)
{
json.BeginObject();
json.String("id", value);
json.String("text", value);
json.EndObject();
}
}
json.EndArray();
var message = WebMessage.Create(webData.Method, $"Filter {nameField} {text}");
webData.Answer = WebAnswer.Json(webData.Request, message, json.ToString());
}
/// <summary>Gets the subset audio file IDs.</summary>
/// <param name="subsetID">The subset identifier.</param>
/// <param name="minDuration">The minimum duration.</param>
/// <param name="maxDuration">The maximum duration.</param>
/// <returns></returns>
public IList <long> GetSubsetAudioFileIDs(long subsetID, TimeSpan minDuration, TimeSpan maxDuration)
{
Search search = Search.None;
#region whitelist
{
var whitelist = SubsetFilters.GetStructs(Search.FieldEquals(nameof(MDBSubsetFilter.SubsetID), subsetID) & Search.FieldEquals(nameof(MDBSubsetFilter.Mode), MDBSubsetFilterMode.Whitelist));
foreach (MDBSubsetFilter filter in whitelist)
{
switch (filter.Type)
{
case MDBSubsetFilterType.Album:
foreach (long albumID in Albums.FindRows(Search.FieldLike(nameof(MDBAlbum.Name), MDBSearch.Text(filter.Text))))
{
search |= Search.FieldEquals(nameof(MDBAudioFile.AlbumID), albumID);
}
break;
case MDBSubsetFilterType.Artist:
foreach (long artistID in Artists.FindRows(Search.FieldLike(nameof(MDBArtist.Name), MDBSearch.Text(filter.Text))))
{
search |= Search.FieldEquals(nameof(MDBAudioFile.SongArtistID), artistID);
}
break;
case MDBSubsetFilterType.Category:
{
var ids = Categories.FindRows(nameof(MDBCategory.Name), MDBSearch.Text(filter.Text));
if (ids.Count != 1)
{
this.LogError(string.Format("Error at SubsetFilter {0}", filter));
}
foreach (long id in ids)
{
search |= Search.FieldEquals(nameof(MDBAudioFile.CategoryID), id);
}
break;
}
case MDBSubsetFilterType.Tag:
{
search |= Search.FieldLike(nameof(MDBAudioFile.Tags), MDBSearch.Text(filter.Text));
break;
}
case MDBSubsetFilterType.Genre:
{
search |= Search.FieldLike(nameof(MDBAudioFile.Genres), MDBSearch.Text(filter.Text));
break;
}
case MDBSubsetFilterType.Title:
{
search |= Search.FieldLike("Title", MDBSearch.Text(filter.Text));
break;
}
default: this.LogError(string.Format("Unknown SubsetType at SubsetFilter {0}", filter)); break;
}
}
}
#endregion
#region blacklist
{
var blacklist = SubsetFilters.GetStructs(Search.FieldEquals(nameof(MDBSubsetFilter.SubsetID), subsetID) & Search.FieldEquals(nameof(MDBSubsetFilter.Mode), MDBSubsetFilterMode.Blacklist));
foreach (MDBSubsetFilter filter in blacklist)
{
switch (filter.Type)
{
case MDBSubsetFilterType.Album:
foreach (long albumID in Albums.FindRows(Search.FieldLike(nameof(MDBAlbum.Name), MDBSearch.Text(filter.Text))))
{
search &= !Search.FieldEquals(nameof(MDBAudioFile.AlbumID), albumID);
}
break;
case MDBSubsetFilterType.Artist:
foreach (long artistID in Artists.FindRows(Search.FieldLike(nameof(MDBArtist.Name), MDBSearch.Text(filter.Text))))
{
search &= !Search.FieldEquals(nameof(MDBAudioFile.SongArtistID), artistID);
}
break;
case MDBSubsetFilterType.Category:
{
var ids = Categories.FindRows(nameof(MDBCategory.Name), MDBSearch.Text(filter.Text));
if (ids.Count != 1)
{
this.LogError(string.Format("Error at SubsetFilter {0}", filter));
}
foreach (long id in ids)
{
search &= !Search.FieldEquals(nameof(MDBAudioFile.CategoryID), id);
}
break;
}
case MDBSubsetFilterType.Tag:
{
search &= !Search.FieldLike(nameof(MDBAudioFile.Tags), MDBSearch.Text(filter.Text));
break;
}
case MDBSubsetFilterType.Genre:
{
search &= !Search.FieldLike(nameof(MDBAudioFile.Genres), MDBSearch.Text(filter.Text));
break;
}
case MDBSubsetFilterType.Title:
{
search &= !Search.FieldLike("Title", MDBSearch.Text(filter.Text));
break;
}
default: this.LogError(string.Format("Unknown SubsetType at SubsetFilter {0}", filter)); break;
}
}
}
#endregion
if (minDuration > TimeSpan.Zero)
{
search &= Search.FieldGreaterOrEqual(nameof(MDBAudioFile.Duration), minDuration);
}
if (maxDuration > minDuration)
{
search &= Search.FieldSmallerOrEqual(nameof(MDBAudioFile.Duration), maxDuration);
}
return(AudioFiles.FindRows(search));
}
public void SearchAlbums(WebData webData, long artistID = 0, string filter = null, int page = 0, long categoryID = 0, long genreID = 0, long tagID = 0, string genre = null, string tag = null)
{
ICollection <long> albumIDs = null;
//select audio files
if (genreID != 0 || categoryID != 0 || tagID != 0 || genre != null || tag != null)
{
Search s = Search.None;
if (genreID != 0)
{
s &= Search.FieldEquals(nameof(MDBAudioFile.GenreID), genreID);
}
if (tagID != 0)
{
s &= Search.FieldEquals(nameof(MDBAudioFile.TagID), tagID);
}
if (genre != null)
{
s &= Search.FieldLike(nameof(MDBAudioFile.Genres), MDBSearch.Text("%" + genre + "%"));
}
if (tag != null)
{
s &= Search.FieldLike(nameof(MDBAudioFile.Tags), MDBSearch.Text("%" + tag + "%"));
}
if (categoryID > 0)
{
s &= GetCategorySearch(categoryID);
}
int fieldIndex = mdb.AudioFiles.Layout.GetFieldIndex(nameof(MDBAudioFile.AlbumID));
albumIDs = mdb.AudioFiles.GetRows(s).Select(r => (long)r.GetValue(fieldIndex)).ToList();
}
//select artists
IList <MDBAlbum> albums;
long rowCount;
{
Search search = Search.None;
if (filter != null)
{
search &= Search.FieldLike(nameof(MDBAlbum.Name), MDBSearch.Text("%" + filter + "%"));
}
if (albumIDs != null)
{
search &= Search.FieldIn(nameof(MDBAlbum.ID), albumIDs);
}
if (artistID != 0)
{
search &= Search.FieldEquals(nameof(MDBAlbum.ArtistID), artistID);
}
if (search.Mode == SearchMode.None)
{
rowCount = mdb.Albums.RowCount;
}
else
{
rowCount = mdb.Albums.Count(search);
}
albums = mdb.Albums.GetStructs(search, ResultOption.SortAscending(nameof(MDBAlbum.Name)) + ResultOption.Offset(page * RowsPerPage) + ResultOption.Limit(RowsPerPage));
}
//join
var result = albums.Select(i => RPCAlbum.Load(mdb, i));
//return
webData.Result.AddMessage(webData.Method, "Retrieved Albums.");
AddPagination(webData, page, rowCount);
webData.Result.AddStructs(result);
}
public void SearchAudioFiles(WebData webData, int page = 0, long artistID = 0, long albumID = 0, long categoryID = 0, long genreID = 0, long tagID = 0,
string filter = null, string title = null, string album = null, string artist = null, string genre = null, string tag = null)
{
if (title == null)
{
title = filter;
}
Search search = Search.None;
if (artistID > 0)
{
if (artist != null)
{
throw new WebServerException(WebError.InvalidParameters, 0, "Cannot use artist search and artistID at the same time!");
}
search &=
Search.FieldEquals(nameof(MDBAudioFile.AlbumArtistID), artistID) |
Search.FieldEquals(nameof(MDBAudioFile.SongArtistID), artistID);
}
else if (artist != null)
{
var ids = mdb.Artists.FindRows(Search.FieldLike(nameof(MDBArtist.Name), artist));
search &=
Search.FieldIn(nameof(MDBAudioFile.AlbumArtistID), ids) |
Search.FieldIn(nameof(MDBAudioFile.SongArtistID), ids);
}
if (albumID > 0)
{
search &= Search.FieldEquals(nameof(MDBAudioFile.AlbumID), albumID);
if (album != null)
{
throw new WebServerException(WebError.InvalidParameters, 0, "Cannot use album search and albumID at the same time!");
}
}
else if (album != null)
{
var ids = mdb.Albums.FindRows(Search.FieldLike(nameof(MDBArtist.Name), album));
search &= Search.FieldIn(nameof(MDBAudioFile.AlbumID), ids);
}
if (categoryID > 0)
{
search &= GetCategorySearch(categoryID);
}
if (genreID > 0)
{
search &= Search.FieldEquals(nameof(MDBAudioFile.GenreID), genreID);
}
if (tagID > 0)
{
search &= Search.FieldEquals(nameof(MDBAudioFile.TagID), tagID);
}
if (genre != null)
{
search &= Search.FieldLike(nameof(MDBAudioFile.Genres), MDBSearch.Text("%" + genre + "%"));
}
if (tag != null)
{
search &= Search.FieldLike(nameof(MDBAudioFile.Tags), MDBSearch.Text("%" + tag + "%"));
}
if (title != null)
{
search &= Search.FieldLike(nameof(MDBAudioFile.Title), MDBSearch.Text("%" + title + "%"));
}
{
long rowCount = mdb.AudioFiles.Count(search);
var ids = mdb.AudioFiles.FindRows(search, ResultOption.Limit(RowsPerPage) + ResultOption.Offset(page * RowsPerPage) + ResultOption.SortAscending(nameof(MDBAudioFile.Title)));
webData.Result.AddMessage(webData.Method, "Found {0} matching AudioFiles.", rowCount);
AddPagination(webData, page, rowCount);
var files = ids.Select(i => RPCAudioFile.Load(mdb, i));
webData.Result.AddStructs(files);
}
}
