| | | 1 | | using Elsa.KeyValues.Entities; |
| | | 2 | | |
| | | 3 | | namespace Elsa.KeyValues.Models; |
| | | 4 | | |
| | | 5 | | public class KeyValueFilter |
| | | 6 | | { |
| | | 7 | | /// <summary> |
| | | 8 | | /// Gets or sets whether the <see cref="Key"/> needs to match the beginning of the key found. |
| | | 9 | | /// </summary> |
| | 0 | 10 | | public bool StartsWith { get; set; } |
| | | 11 | | |
| | | 12 | | /// <summary> |
| | | 13 | | /// Gets or sets the key to filter for. |
| | | 14 | | /// </summary> |
| | 0 | 15 | | public string? Key { get; set; } |
| | | 16 | | |
| | | 17 | | /// <summary> |
| | | 18 | | /// Gets or sets the keys to filter for. |
| | | 19 | | /// </summary> |
| | 0 | 20 | | public ICollection<string>? Keys { get; set; } |
| | | 21 | | |
| | | 22 | | /// <summary> |
| | | 23 | | /// Gets or sets the maximum number of records to return. <c>null</c> means no limit; <c>0</c> returns no records. |
| | | 24 | | /// </summary> |
| | 0 | 25 | | public int? Take { get; set; } |
| | | 26 | | |
| | | 27 | | /// <summary> |
| | | 28 | | /// Gets or sets whether results should be ordered by the persisted key before applying <see cref="Take"/>. |
| | | 29 | | /// The persisted key is stored as <c>Id</c>; <see cref="SerializedKeyValuePair.Key"/> is an alias. |
| | | 30 | | /// </summary> |
| | 0 | 31 | | public bool OrderByKey { get; set; } |
| | | 32 | | |
| | | 33 | | /// <summary> |
| | | 34 | | /// Applies the filter to the specified queryable. |
| | | 35 | | /// </summary> |
| | | 36 | | /// <param name="queryable">The queryable.</param> |
| | | 37 | | /// <returns>The filtered queryable.</returns> |
| | | 38 | | public IQueryable<SerializedKeyValuePair> Apply(IQueryable<SerializedKeyValuePair> queryable) |
| | | 39 | | { |
| | 0 | 40 | | var filter = this; |
| | 0 | 41 | | if (filter.Key != null) |
| | | 42 | | { |
| | 0 | 43 | | queryable = StartsWith |
| | 0 | 44 | | ? queryable.Where(x => x.Id.StartsWith(filter.Key)) |
| | 0 | 45 | | : queryable.Where(x => x.Id == filter.Key); |
| | | 46 | | } |
| | | 47 | | |
| | 0 | 48 | | if (filter.Keys != null) queryable = queryable.Where(x => filter.Keys.Contains(x.Id)); |
| | | 49 | | |
| | 0 | 50 | | if (filter.OrderByKey) |
| | 0 | 51 | | queryable = queryable.OrderBy(x => x.Id); |
| | | 52 | | |
| | 0 | 53 | | if (filter.Take != null) |
| | 0 | 54 | | queryable = queryable.Take(Math.Max(0, filter.Take.Value)); |
| | | 55 | | |
| | 0 | 56 | | return queryable; |
| | | 57 | | } |
| | | 58 | | } |