Creado apartir del commit b888de6c92056de294456f581a56e25e734d4ab7 de develop

adas-core.Domain/QueryCustomizer.cs

@@ -0,0 +1,78 @@
+using System.Linq.Expressions;
+using Microsoft.EntityFrameworkCore;
+
+namespace adas_core.Domain;
+
+/// <summary>
+///     Allow to pass to a <see cref="IQueryable" />
+///     multiple requests like:
+///     * Include (to fetch eagerly relations inside T entity)
+///     Use a Builder pattern.
+///     <example>
+///         <code>
+/// var queryCustomizer = QueryCustomizer&lt;Video&gt;.New()
+///     .Include(v => v.Room)
+///     .Include(v => v.Clips)
+///     .Include(v => v.Diagnosis)
+///     .Include(v => v.Movies)
+///     .Include(v => v.Patient)
+///     .Include(v => v.Service)
+///     .Include(v => v.Thumbnail)
+///     .Include(v => v.VideoDoctors)
+///     .Include(v => v.Procedure)
+///     .Include(v => v.Recordings)
+///     .Include(v => v.Chapters)
+///     .Include(v => v.LogDownloadVideoUsers)
+///     .Include("VideoDoctors.Doctor")
+///     ;
+/// var v = _videoRepository.GetById(id, queryCustomizer);
+/// </code>
+///     </example>
+/// </summary>
+public class QueryCustomizer<T> where T : class
+{
+    private readonly List<Expression<Func<T, object>>> _includeLinqExpressions = [];
+    private readonly List<string> _includeLinqStringExpressions = [];
+
+    public static QueryCustomizer<T> New()
+    {
+        return new QueryCustomizer<T>();
+    }
+
+    public QueryCustomizer<T> Include(Expression<Func<T, object>> includeExpression)
+    {
+        _includeLinqExpressions.Add(includeExpression);
+        return this;
+    }
+
+    public QueryCustomizer<T> Include(params Expression<Func<T, object>>[] includeExpressions)
+    {
+        _includeLinqExpressions.AddRange(includeExpressions);
+        return this;
+    }
+
+    public QueryCustomizer<T> Include(string includeExpression)
+    {
+        _includeLinqStringExpressions.Add(includeExpression);
+        return this;
+    }
+
+    public QueryCustomizer<T> Include(params string[] includeExpressions)
+    {
+        _includeLinqStringExpressions.AddRange(includeExpressions);
+        return this;
+    }
+
+
+    public IQueryable<T> AddToQueryable(IQueryable<T> queryable)
+    {
+        var resultQueryable = queryable;
+        resultQueryable = _includeLinqExpressions
+                .Aggregate(resultQueryable, (current, expression) => current.Include(expression))
+            ;
+        resultQueryable = _includeLinqStringExpressions
+                .Aggregate(resultQueryable, (current, expression) => current.Include(expression))
+            ;
+        return resultQueryable;
+    }
+}