Start doing stuff

crates/db_schema/src/traits.rs

@@ -1,42 +1,108 @@
 use crate::{
   newtypes::{CommunityId, DbUrl, PersonId},
-  utils::{DbPool,get_conn},
+  utils::{get_conn, DbPool, DbConn},
 };
-use diesel::{result::Error,Identifiable, associations::HasTable,query_dsl::methods::FindDsl};
+use diesel::{
+  associations::HasTable,
+  backend::Backend,
+  deserialize::{FromSqlRow, Queryable},
+  dsl::insert_into,
+  pg::Pg,
+  query_builder::{AsQuery, IntoUpdateTarget, Query, QueryFragment, QueryId},
+  query_dsl::methods::FindDsl,
+  result::Error,
+  AsChangeset,
+  Column,
+  Expression,
+  Identifiable,
+  Insertable,
+  QuerySource,
+  Table,
+  query_dsl::methods::LimitDsl,
+};
+use diesel_async::{AsyncConnection, RunQueryDsl,methods::LoadQuery};
+use std::hash::Hash;
 
 #[async_trait]
-pub trait Crud where Self: Identifiable, Self::Table: FindDsl<Self::Id> {
+pub trait Crud
+where
+  Self: Send + HasTable + Send + 'static + FromSqlRow<<Self::Table as AsQuery>::SqlType, Pg>,
+  Self::Table: Send + FindDsl<Self::IdType>,
+  <Self::Table as FindDsl<Self::IdType>>::Output: LimitDsl + Send,
+  for<'conn> <<Self::Table as FindDsl<Self::IdType>>::Output as LimitDsl>::Output:
+    Send + LoadQuery<'static, DbConn<'conn>, Self> /*+ 'query*/ + Send,
+  <Self::Table as AsQuery>::SqlType: Send,
+{
   type InsertForm;
   type UpdateForm;
+  type IdType: Hash + Eq + Send;
   async fn create(pool: &mut DbPool<'_>, form: &Self::InsertForm) -> Result<Self, Error>
   where
-    Self: Sized;
-  async fn read(pool: &mut DbPool<'_>, id: Self::Id) -> Result<Self, Error>
+    Self: Sized; /*{
+                   let conn = &mut get_conn(pool).await?;
+                   insert_into(Self::table())
+                     .values(form)
+                     .get_result::<Self>(conn)
+                     .await
+                 }*/
+  async fn read(pool: &mut DbPool<'_>, id: Self::IdType) -> Result<Self, Error>
   where
-    Self: Sized;
+    Self: Sized,
+  {
+    let mut conn = get_conn(pool).await?;
+    let table = Self::table();
+    let find_dsl_output = FindDsl::find(table, id);
+    RunQueryDsl::first::<Self>(find_dsl_output, &mut conn).await
+  }
   /// when you want to null out a column, you have to send Some(None)), since sending None means you just don't want to update that column.
   async fn update(
     pool: &mut DbPool<'_>,
-    id: Self::Id,
+    id: Self::IdType,
     form: &Self::UpdateForm,
   ) -> Result<Self, Error>
   where
-    Self: Sized;
-  async fn delete(_pool: &mut DbPool<'_>, _id: Self::Id) -> Result<usize, Error>
+    Self: Sized; /*{
+                   let conn = &mut get_conn(pool).await?;
+                   diesel::update(Self::table().find(id))
+                     .set(form)
+                     .get_result::<Self>(conn)
+                     .await
+                 }*/
+  async fn delete(pool: &mut DbPool<'_>, id: Self::IdType) -> Result<usize, Error>
   where
     Self: Sized,
-    Self::Id: Send,
+    Self::IdType: Send,
   {
-    async { Err(Error::NotFound) }.await
+    Err(Error::NotFound)
+    /*let conn = &mut get_conn(pool).await?;
+    diesel::delete(Self::table().find(id)).execute(conn).await*/
   }
 }
 
 #[async_trait]
-pub trait Followable {
+pub trait Followable
+where
+  Self: HasTable,
+  for<'a> &'a Self::Form: AsChangeset<Target = Self::Table> + Insertable<Self::Table>,
+{
+  //type FollowerColumn: Column + Default + Send;
+  //type TargetColumn: Column + Default + Send;
   type Form;
   async fn follow(pool: &mut DbPool<'_>, form: &Self::Form) -> Result<Self, Error>
   where
-    Self: Sized;
+    Self: Sized; /*{
+                   let conn = &mut get_conn(pool).await?;
+                   insert_into(Self::table())
+                     .values(form)
+                     .on_conflict((
+                       Self::TargetColumn::default(),
+                       Self::FollowerColumn::default(),
+                     ))
+                     .do_update()
+                     .set(form)
+                     .get_result::<Self>(conn)
+                     .await
+                 }*/
   async fn follow_accepted(
     pool: &mut DbPool<'_>,
     community_id: CommunityId,
@@ -70,7 +136,7 @@ pub trait Likeable {
   async fn remove(
     pool: &mut DbPool<'_>,
     person_id: PersonId,
-    item_id: Self::Id,
+    item_id: Self::IdType,
   ) -> Result<usize, Error>
   where
     Self: Sized;
@@ -129,14 +195,14 @@ pub trait Reportable {
     Self: Sized;
   async fn resolve(
     pool: &mut DbPool<'_>,
-    report_id: Self::Id,
+    report_id: Self::IdType,
     resolver_id: PersonId,
   ) -> Result<usize, Error>
   where
     Self: Sized;
   async fn unresolve(
     pool: &mut DbPool<'_>,
-    report_id: Self::Id,
+    report_id: Self::IdType,
     resolver_id: PersonId,
   ) -> Result<usize, Error>
   where