openreader: allow to disable fk contraint

[belopash]

No description provided.

[belopash]

@mo4islona not sure about directive name

[mo4islona]

I'm good with this name

[Copilot]

Pull request overview

Adds support in openreader/typeorm code generation to disable DB-level foreign key constraints for entity relationships, and updates the ERC20 transfers example to use nullable FK relations without enforced constraints.

Changes:

• Introduces @disableForeignKeyConstraint directive in openreader schema parsing and plumbs it through the model (FkPropType.disableConstraint).
• Updates TypeORM model codegen to emit createForeignKeyConstraints: false for FK relations when requested.
• Extends OpenCRUD schema/query planning to expose <fkField>Id scalar fields and allow selecting/filtering by them; updates the erc20-transfers example schema/models/migrations accordingly.

Reviewed changes

Copilot reviewed 11 out of 14 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
typeorm/typeorm-codegen/src/codegen.ts	Emits createForeignKeyConstraints: false for FK relations when disableConstraint is set.
graphql/openreader/src/model.ts	Adds disableConstraint?: boolean to FkPropType.
graphql/openreader/src/model.schema.ts	Adds @disableForeignKeyConstraint directive and maps it into FK property metadata.
graphql/openreader/src/util/util.ts	Adds helpers to derive/recognize <fkField>Id virtual fields.
graphql/openreader/src/sql/cursor.ts	Allows resolving virtual <fkField>Id fields as scalar columns.
graphql/openreader/src/dialect/opencrud/schema.ts	Exposes <fkField>Id output fields and adds where-filter support for them.
graphql/openreader/src/dialect/opencrud/tree.ts	Allows requesting <fkField>Id even though it isn’t a modeled property.
test/erc20-transfers/schema.graphql	Adds Account entity and marks Transfer.from/to with @disableForeignKeyConstraint.
test/erc20-transfers/src/model/generated/account.model.ts	Adds generated Account entity model.
test/erc20-transfers/src/model/generated/transfer.model.ts	Changes from/to from scalar strings to FK relations with constraints disabled.
test/erc20-transfers/src/model/generated/index.ts	Exports the newly generated Account model.
test/erc20-transfers/src/processor.ts	Writes from/to as Account references (id-only objects) instead of strings.
test/erc20-transfers/db/migrations/1770630835290-Data.js	New migration reflecting the new schema (account table + transfer FK id columns + indexes).
test/erc20-transfers/db/migrations/1682961487386-Data.js	Removes the old migration that stored from/to as text columns.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.