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Make GetContainerColumnType() always return the expected type #37864

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Merged
AndriySvyryd merged 6 commits into from
Mar 6, 2026
Merged

Make GetContainerColumnType() always return the expected type #37864

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e9aa875
Initial plan
Copilot Mar 6, 2026
cf6d4c5
Make GetContainerColumnType() return the default JSON mapping type in…
Copilot Mar 6, 2026
f6b6f0a
Move default JSON type resolution from convention to GetContainerColu…
Copilot Mar 6, 2026
272f907
Remove redundant fallback in CSharpSnapshotGenerator now that GetCont…
Copilot Mar 6, 2026
cab6eeb
Cast model to Model and check IsReadOnly instead of checking for IModel
Copilot Mar 6, 2026
520417f
Use || condition for non-Model types and simplify IsReadOnly check
Copilot Mar 6, 2026
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6 changes: 2 additions & 4 deletions src/EFCore.Design/Migrations/Design/CSharpSnapshotGenerator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -707,8 +707,7 @@ protected virtual void GenerateComplexPropertyAnnotations(
if (typeAnnotations.ContainsKey(RelationalAnnotationNames.ContainerColumnName)
&& !typeAnnotations.ContainsKey(RelationalAnnotationNames.ContainerColumnType))
{
var containerColumnType = property.ComplexType.GetContainerColumnType()
?? Dependencies.RelationalTypeMappingSource.FindMapping(typeof(JsonTypePlaceholder))?.StoreType;
var containerColumnType = property.ComplexType.GetContainerColumnType();
if (containerColumnType != null)
{
typeAnnotations[RelationalAnnotationNames.ContainerColumnType] = new Annotation(
Expand Down Expand Up @@ -921,8 +920,7 @@ protected virtual void GenerateEntityTypeAnnotations(
if (annotations.ContainsKey(RelationalAnnotationNames.ContainerColumnName)
&& !annotations.ContainsKey(RelationalAnnotationNames.ContainerColumnType))
{
var containerColumnType = entityType.GetContainerColumnType()
?? Dependencies.RelationalTypeMappingSource.FindMapping(typeof(JsonTypePlaceholder))?.StoreType;
var containerColumnType = entityType.GetContainerColumnType();
if (containerColumnType != null)
{
annotations[RelationalAnnotationNames.ContainerColumnType] = new Annotation(
Expand Down
29 changes: 24 additions & 5 deletions src/EFCore.Relational/Extensions/RelationalTypeBaseExtensions.cs
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Expand Up @@ -416,11 +416,30 @@ public static void SetContainerColumnName(this IMutableTypeBase typeBase, string
/// <param name="typeBase">The type.</param>
/// <returns>The database column type.</returns>
public static string? GetContainerColumnType(this IReadOnlyTypeBase typeBase)
=> typeBase.FindAnnotation(RelationalAnnotationNames.ContainerColumnType)?.Value is string columnName
? columnName
: typeBase is IReadOnlyEntityType entityType
? entityType.FindOwnership()?.PrincipalEntityType.GetContainerColumnType()
: ((IReadOnlyComplexType)typeBase).ComplexProperty.DeclaringType.GetContainerColumnType();
{
if (typeBase.FindAnnotation(RelationalAnnotationNames.ContainerColumnType)?.Value is string columnType)
{
return columnType;
}

var parentType = typeBase is IReadOnlyEntityType entityType
? entityType.FindOwnership()?.PrincipalEntityType.GetContainerColumnType()
: ((IReadOnlyComplexType)typeBase).ComplexProperty.DeclaringType.GetContainerColumnType();

if (parentType != null)
{
return parentType;
}

if (typeBase.IsMappedToJson()
&& typeBase.Model is IModel model)
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{
return ((IRelationalTypeMappingSource)model.GetModelDependencies().TypeMappingSource)
.FindMapping(typeof(JsonTypePlaceholder))?.StoreType;
}

return null;
}

/// <summary>
/// Sets the type of the container column to which the type is mapped.
Expand Down
54 changes: 54 additions & 0 deletions test/EFCore.Relational.Tests/Metadata/RelationalModelTest.cs
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Expand Up @@ -3053,6 +3053,60 @@ public void Complex_collection_container_column_type_is_used_in_relational_model
Assert.Equal("some_json_mapping", column.StoreType);
}

[ConditionalFact]
public void Complex_property_gets_default_container_column_type_when_not_set_explicitly()
{
var modelBuilder = CreateConventionModelBuilder();

modelBuilder.Entity<EntityWithComplexProperty>(eb =>
{
eb.ComplexProperty(
e => e.ComplexProperty, cb =>
{
cb.ToJson("complex_data");
});
});

var model = Finalize(modelBuilder);

var entityType = model.Model.FindEntityType(typeof(EntityWithComplexProperty));
var complexProperty = entityType.GetComplexProperties().Single();
var complexType = complexProperty.ComplexType;

Assert.Equal("some_json_mapping", complexType.GetContainerColumnType());

var table = entityType.GetTableMappings().Single().Table;
var column = table.Columns.Single(c => c.Name == "complex_data");
Assert.Equal("some_json_mapping", column.StoreType);
}

[ConditionalFact]
public void Complex_collection_gets_default_container_column_type_when_not_set_explicitly()
{
var modelBuilder = CreateConventionModelBuilder();

modelBuilder.Entity<EntityWithComplexCollection>(eb =>
{
eb.ComplexCollection(
e => e.ComplexCollection, cb =>
{
cb.ToJson("collection_data");
});
});

var model = Finalize(modelBuilder);

var entityType = model.Model.FindEntityType(typeof(EntityWithComplexCollection));
var complexProperty = entityType.GetComplexProperties().Single();
var complexType = complexProperty.ComplexType;

Assert.Equal("some_json_mapping", complexType.GetContainerColumnType());

var table = entityType.GetTableMappings().Single().Table;
var column = table.Columns.Single(c => c.Name == "collection_data");
Assert.Equal("some_json_mapping", column.StoreType);
}

[ConditionalFact]
public void Can_use_relational_model_with_functions()
{
Expand Down