Class NpgsqlJsonElementHackConvention

Namespace

Npgsql.EntityFrameworkCore.PostgreSQL.Metadata.Conventions

Assembly

Npgsql.EntityFrameworkCore.PostgreSQL.dll

This convention is a hack around https://github.com/dotnet/efcore/issues/32192. To support the EF owned entity JSON support, EF requires that a lookup of the CLR type JsonElement return the provider's special JsonTypeMapping. But Npgsql has its own JSON DOM support, where actually mapping JsonElement is allowed as a weakly-typed mapping strategy. The two JSON type mappings are incompatible notably because EF's JsonTypeMapping is expected to return UTF8 byte data which is then parsed via Utf8JsonWriter (and not a string). So for properties actually typed as JsonElement, we hack here and set the type mapping rather than going through the regular type mapping process.

public class NpgsqlJsonElementHackConvention : IPropertyAddedConvention, IConvention

Inheritance

object

NpgsqlJsonElementHackConvention

Implements

IPropertyAddedConvention

IConvention

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

ProcessPropertyAdded(IConventionPropertyBuilder, IConventionContext<IConventionPropertyBuilder>)

Called after a property is added to the entity type.

public void ProcessPropertyAdded(IConventionPropertyBuilder propertyBuilder, IConventionContext<IConventionPropertyBuilder> context)

Parameters

propertyBuilder IConventionPropertyBuilder

The builder for the property.

context IConventionContext<IConventionPropertyBuilder>

Additional information associated with convention execution.