This PR generalizes a bunch of metadata structures.
Most importantly, it changes `SourceCache` to hold existentially quantified values:
```
data BackendSourceInfo =
forall b. Backend b => BackendSourceInfo (SourceInfo b)
type SourceCache = HashMap SourceName BackendSourceInfo
```
This changes a *lot* of things throughout the code. For now, all code using the schema cache explicitly casts sources to Postgres, meaning that if any non-Postgres `SourceInfo` makes it to the cache, it'll be ignored.
That means that after this PR is submitted, we can split work between two different aspects:
- creating `SourceInfo` for other backends
- handling those other sources down the line
GitOrigin-RevId: fb9ea00f32e840fc33c5467896fb1dfa5283ab42
### Description
Our Prelude provides the very convenient `hoistMaybe :: Maybe b -> MaybeT m b`. This PR adds hlint rules to replace uses of `MaybeT $ pure $ x` with the cleaner `hoistMaybe x`, and rules to specifically replace `MaybeT $ pure Nothing` with `empty`.
GitOrigin-RevId: 7254f4954e34e4d7ca972dc7c12073d3ab8cb0b8
Fixes https://github.com/hasura/graphql-engine/issues/5704 by checking, for aggregate fields whether we are handling a numeric aggregation.
This PR also adds type information to `ColFld` such that we know the type of the field.
This is the second attempt. See #319 for a less invasive approach. @nicuveo suggested type information might be useful, and since it wasn't hard to add, I think this version is better as well.
GitOrigin-RevId: aa6a259fd5debe9466df6302839ddbbd0ea659b5
Fixes https://github.com/hasura/graphql-engine/issues/6385
In the v1.3.4-beta.2 version, the SQL generated for a query action containing relationship and configured with permissions parsed the `x-hasura-user-id` session variable value through the `hasura.user` postgres setting instead of passing the session variables as an JSON object to the query as it was in v1.3.3.
This PR fixes the SQL generation to that of v1.3.3
Co-authored-by: Rakesh Emmadi <12475069+rakeshkky@users.noreply.github.com>
GitOrigin-RevId: 838ba812f89b51df7fcead81b9d3c2885dfa39b4
### Description
This PR updates the graphql schema to be backend-agnostic. To do so, it also moves the definition of operators to `BackendSchema`, to be specified differently per backend.
GitOrigin-RevId: 35b9d2d1bff93fb68b872d6ab0d3d12ec12c1b93
This is an incremental PR towards https://github.com/hasura/graphql-engine/pull/5797
Co-authored-by: Anon Ray <ecthiender@users.noreply.github.com>
GitOrigin-RevId: a6cb8c239b2ff840a0095e78845f682af0e588a9
An incremental PR towards https://github.com/hasura/graphql-engine/pull/5797
- Expands `MonadMetadataStorage` with operations related to async actions and setting/updating metadata
GitOrigin-RevId: 53386b7b2d007e162050b826d0708897f0b4c8f6
Since PDV, introspection queries are parsed by a certain kind of reflection where during the GraphQL schema generation, we collect all GraphQL types used during schema generation to generate answers to introspection queries. This has a great advantage, namely that we don't need to keep track of which types are being used in our schema, as this information is extracted after the fact.
But what happens when we encounter two types with the same name in the GraphQL schema? Well, they better be the same, otherwise we likely made a programming error. So what do we do when we *do* encounter a conflict? So far, we've been throwing a rather generic error message, namely `found conflicting definitions for <typename> when collecting types from the schema`. It does not specify what the conflict is, or how it arose. In fact, I'm a little bit hesitant to output more information about what the conflict is, because we support many different kinds of GraphQL types, and these can have disagreements in many different ways. It'd be a bit tiring (not to mention error-prone) to spell this out explicitly for all types. And, in any case, at the moment our equality checks for types is incorrect anyway, as we are avoiding implementing a certain recursive equality checking algorithm.
As it turns out, type conflicts arise not just due to programming errors, but also arise naturally under certain configurations. @codingkarthik encountered an interesting case recently where adding a specific remote and a single unrelated database table would result in a conflict in our Relay schema. It was not readily visible how this conflict arose: this took significant engineering effort.
This adds stack traces to type collection, so that we can inform the user where the type conflict is taking place. The origin of the above conflict can easily be spotted using this PR. Here's a sample error message:
```
Found conflicting definitions for "PageInfo". The definition at "mutation_root.UpdateUser.favourites.anime.edges.node.characters.pageInfo" differs from the the definition at "query_root.test_connection.pageInfo"
```
Co-authored-by: Antoine Leblanc <antoine@hasura.io>
GitOrigin-RevId: d4c01c243022d8570b3c057b168a61c3033244ff
* Add update_by_pk test with more interesting permissions.
* Add new delete test with more interesting permissions.
* Fix byPk operations not providing all columns.
* Empty commit to unlock ci.
GitOrigin-RevId: eb1ca2cc4c59f421bc5fedf49bef91aa4bbdca94
This PR makes a bunch of schema generation code in Hasura.GraphQL.Schema backend-agnostic, by moving the backend-specific parts into a new BackendSchema type class. This way, the schema generation code can be reused for other backends, simply by implementing new instances of the BackendSchema type class.
This work is now in a state where the schema generators are sufficiently generic to accept the implementation of a new backend. That means that we can start exposing MS SQL schema. Execution is not implemented yet, of course.
The branch currently does not support computed fields or Relay. This is, in a sense, intentional: computed field support is normally baked into the schema generation (through the fieldSelection schema generator), and so this branch shows a programming technique that allows us to expose certain GraphQL schema depending on backend support. We can write support for computed fields and Relay at a later stage.
Co-authored-by: Antoine Leblanc <antoine@hasura.io>
GitOrigin-RevId: df369fc3d189cbda1b931d31678e9450a6601314
* Use local graphql-engine, WIP
* Implement cacheLookup and cacheStore
* Fix the key generatio ncode, deduplicate
* changelog
* More deduplication
* Run tests from this repo
* remove changelog
Co-authored-by: Anon Ray <rayanon004@gmail.com>
GitOrigin-RevId: 80d10c4dfdcadbe9f49ec50fe67aa981202c98c9
