Replace attributes from System.ComponentModel.DataAnnotations.Schema
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
Research direction
Review the listed System.ComponentModel.DataAnnotations.Schema types and the linked #21075 discussion first, then inspect the EF Core Abstractions package where replacement attributes would belong. Done means defining the EF-specific replacements and establishing how users move away from the existing Schema attributes, but the issue does not identify implementation files or tests.
Written by the indexing model from the issue text.
Description
The Schema namespace was introduced specifically for EF Code First mapping attributes when we moved these into .NET Framework. It exists because these attributes are very coupled to EF/databases/relational concepts.
However, we have now moved away from using attributes in the BCL for new mapping capabilities because we're no longer attempting to make the attributes general purpose--they are specifically for EF mapping.
This then creates a problem when we do want to add new functionality to things currently covered by the Schema attributes--see #21075. Instead, we could create new EF specific attributes in our Abstractions package and move people away from using the Schema attributes.
The types are:
- ColumnAttribute
- ComplexTypeAttribute
- DatabaseGeneratedAttribute
- ForeignKeyAttribute
- InversePropertyAttribute
- NotMappedAttribute
- TableAttribute
- Dominant language
- C#
- Stars
- 14.8k
- Forks
- 3.4k
- Avg merge
- 2d 5h
- Merged PRs (30d)
- 134
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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