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maureimaurei
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feat: added support for updating cyclic relations
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5 files changed

+238
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‎JsonApiDotnetCore.sln

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@@ -204,6 +204,7 @@ Global
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{09C0C8D8-B721-4955-8889-55CB149C3B5C}.Release|x86.ActiveCfg = Release|Any CPU
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{09C0C8D8-B721-4955-8889-55CB149C3B5C}.Release|x86.Build.0 = Release|Any CPU
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{DF9BFD82-D937-4907-B0B4-64670417115F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{DF9BFD82-D937-4907-B0B4-64670417115F}.Debug|Any CPU.Build.0 = Debug|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE

‎src/Examples/JsonApiDotNetCoreExample/Data/AppDbContext.cs

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@@ -40,6 +40,17 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
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modelBuilder.Entity<ArticleTag>()
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.HasKey(bc => new { bc.ArticleId, bc.TagId });
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modelBuilder.Entity<TodoItem>()
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.HasOne(t => t.DependentTodoItem);
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modelBuilder.Entity<TodoItem>()
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.HasMany(t => t.ChildrenTodoItems)
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.WithOne(t => t.ParentTodoItem)
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.HasForeignKey(t => t.ParentTodoItemId);
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}
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public DbSet<TodoItem> TodoItems { get; set; }

‎src/Examples/JsonApiDotNetCoreExample/Models/TodoItem.cs

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@@ -1,4 +1,5 @@
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using System;
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using System.Collections.Generic;
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using JsonApiDotNetCore.Models;
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namespace JsonApiDotNetCoreExample.Models
@@ -30,7 +31,7 @@ public TodoItem()
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public DateTime? UpdatedDate { get; set; }
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public int? OwnerId { get; set; }
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public int? AssigneeId { get; set; }
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public Guid? CollectionId { get; set; }
@@ -43,5 +44,19 @@ public TodoItem()
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[HasOne("collection")]
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public virtual TodoItemCollection Collection { get; set; }
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public virtual int? DependentTodoItemId { get; set; }
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[HasOne("dependent-on-todo")]
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public virtual TodoItem DependentTodoItem { get; set; }
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// cyclical structure
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public virtual int? ParentTodoItemId {get; set;}
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[HasOne("parent-todo")]
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public virtual TodoItem ParentTodoItem { get; set; }
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[HasMany("children-todos")]
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public virtual List<TodoItem> ChildrenTodoItems { get; set; }
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}
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}

‎src/JsonApiDotNetCore/Data/DefaultEntityRepository.cs

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@@ -330,14 +330,39 @@ public virtual async Task<TEntity> UpdateAsync(TId id, TEntity entity)
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if ((relationship.Key.TypeId as Type).IsAssignableFrom(typeof(HasManyAttribute)))
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{
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await _context.Entry(oldEntity).Collection(relationship.Key.InternalRelationshipName).LoadAsync();
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relationship.Key.SetValue(oldEntity, relationship.Value);
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var value = CheckForSelfReferingUpdate((IEnumerable<object>)relationship.Value, oldEntity);
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relationship.Key.SetValue(oldEntity, value);
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}
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}
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}
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await _context.SaveChangesAsync();
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return oldEntity;
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}
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object CheckForSelfReferingUpdate(IEnumerable<object> relatedEntities, TEntity oldEntity)
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{
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var entity = relatedEntities.FirstOrDefault();
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var list = new List<TEntity>();
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bool refersSelf = false;
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if (entity?.GetType() == typeof(TEntity))
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{
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foreach (TEntity e in relatedEntities)
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{
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if (oldEntity.StringId == e.StringId)
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{
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list.Add(oldEntity);
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refersSelf = true;
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}
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else
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{
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list.Add(e);
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}
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}
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}
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return (refersSelf ? list : relatedEntities);
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}
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/// <inheritdoc />
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public async Task UpdateRelationshipsAsync(object parent, RelationshipAttribute relationship, IEnumerable<string> relationshipIds)
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{

‎test/JsonApiDotNetCoreExampleTests/Acceptance/Spec/UpdatingRelationshipsTests.cs

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@@ -41,6 +41,190 @@ public UpdatingRelationshipsTests(TestFixture<TestStartup> fixture)
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}
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[Fact]
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public async Task Can_Update_Cyclic_ToMany_Relationship_By_Patching_Resource()
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{
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// Arrange
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var todoItem = _todoItemFaker.Generate();
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var strayTodoItem = _todoItemFaker.Generate();
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_context.TodoItems.Add(todoItem);
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_context.TodoItems.Add(strayTodoItem);
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_context.SaveChanges();
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var builder = new WebHostBuilder()
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.UseStartup<Startup>();
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var server = new TestServer(builder);
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var client = server.CreateClient();
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// Act
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var content = new
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{
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data = new
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{
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type = "todo-items",
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id = todoItem.Id,
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relationships = new Dictionary<string, object>
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{
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{ "children-todos", new
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{
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data = new object[]
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{
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new { type = "todo-items", id = $"{todoItem.Id}" },
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new { type = "todo-items", id = $"{strayTodoItem.Id}" }
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}
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}
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}
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}
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}
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};
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var httpMethod = new HttpMethod("PATCH");
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var route = $"/api/v1/todo-items/{todoItem.Id}";
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var request = new HttpRequestMessage(httpMethod, route);
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string serializedContent = JsonConvert.SerializeObject(content);
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request.Content = new StringContent(serializedContent);
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request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.api+json");
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// Act
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var response = await client.SendAsync(request);
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var body = await response.Content.ReadAsStringAsync();
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_context = _fixture.GetService<AppDbContext>();
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var updatedTodoItem = _context.TodoItems.AsNoTracking()
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.Where(ti => ti.Id == todoItem.Id)
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.Include(ti => ti.ChildrenTodoItems).First();
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updatedTodoItem.ChildrenTodoItems.Any((ti) => ti.Id == todoItem.Id);
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Assert.Contains(updatedTodoItem.ChildrenTodoItems, (ti) => ti.Id == todoItem.Id);
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}
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[Fact]
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public async Task Can_Update_Cyclic_ToOne_Relationship_By_Patching_Resource()
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{
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// Arrange
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var todoItem = _todoItemFaker.Generate();
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var strayTodoItem = _todoItemFaker.Generate();
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_context.TodoItems.Add(todoItem);
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_context.SaveChanges();
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var builder = new WebHostBuilder()
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.UseStartup<Startup>();
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var server = new TestServer(builder);
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var client = server.CreateClient();
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// Act
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var content = new
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{
125+
data = new
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{
127+
type = "todo-items",
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id = todoItem.Id,
129+
relationships = new Dictionary<string, object>
130+
{
131+
{ "dependent-on-todo", new
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{
133+
data = new { type = "todo-items", id = $"{todoItem.Id}" }
134+
}
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}
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}
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}
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};
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var httpMethod = new HttpMethod("PATCH");
141+
var route = $"/api/v1/todo-items/{todoItem.Id}";
142+
var request = new HttpRequestMessage(httpMethod, route);
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string serializedContent = JsonConvert.SerializeObject(content);
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request.Content = new StringContent(serializedContent);
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request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.api+json");
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// Act
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var response = await client.SendAsync(request);
151+
var body = await response.Content.ReadAsStringAsync();
152+
_context = _fixture.GetService<AppDbContext>();
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var updatedTodoItem = _context.TodoItems.AsNoTracking()
156+
.Where(ti => ti.Id == todoItem.Id)
157+
.Include(ti => ti.DependentTodoItem).First();
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159+
Assert.Equal(todoItem.Id, updatedTodoItem.DependentTodoItemId);
160+
}
161+
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[Fact]
163+
public async Task Can_Update_Both_Cyclic_ToOne_And_ToMany_Relationship_By_Patching_Resource()
164+
{
165+
// Arrange
166+
var todoItem = _todoItemFaker.Generate();
167+
var strayTodoItem = _todoItemFaker.Generate();
168+
_context.TodoItems.Add(todoItem);
169+
_context.TodoItems.Add(strayTodoItem);
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_context.SaveChanges();
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var builder = new WebHostBuilder()
174+
.UseStartup<Startup>();
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var server = new TestServer(builder);
177+
var client = server.CreateClient();
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// Act
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var content = new
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{
182+
data = new
183+
{
184+
type = "todo-items",
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id = todoItem.Id,
186+
relationships = new Dictionary<string, object>
187+
{
188+
{ "dependent-on-todo", new
189+
{
190+
data = new { type = "todo-items", id = $"{todoItem.Id}" }
191+
}
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},
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{ "children-todos", new
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{
195+
data = new object[]
196+
{
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new { type = "todo-items", id = $"{todoItem.Id}" },
198+
new { type = "todo-items", id = $"{strayTodoItem.Id}" }
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}
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}
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}
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}
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}
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};
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var httpMethod = new HttpMethod("PATCH");
207+
var route = $"/api/v1/todo-items/{todoItem.Id}";
208+
var request = new HttpRequestMessage(httpMethod, route);
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210+
string serializedContent = JsonConvert.SerializeObject(content);
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request.Content = new StringContent(serializedContent);
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request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.api+json");
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// Act
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var response = await client.SendAsync(request);
217+
var body = await response.Content.ReadAsStringAsync();
218+
_context = _fixture.GetService<AppDbContext>();
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var updatedTodoItem = _context.TodoItems.AsNoTracking()
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.Where(ti => ti.Id == todoItem.Id)
223+
.Include(ti => ti.ParentTodoItem).First();
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225+
Assert.Equal(todoItem.Id, updatedTodoItem.ParentTodoItemId);
226+
}
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44228
[Fact]
45229
public async Task Can_Update_ToMany_Relationship_By_Patching_Resource()
46230
{

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