worker: Extract enqueue_simple/deduplicated() fns (#9630)

Author: Turbo87

crates/crates_io_worker/src/background_job.rs

@@ -7,6 +7,7 @@ use diesel::prelude::*;
 use diesel::sql_types::{Int2, Jsonb, Text};
 use serde::de::DeserializeOwned;
 use serde::Serialize;
+use serde_json::Value;
 use std::future::Future;
 use tracing::instrument;
 
@@ -49,49 +50,67 @@ pub trait BackgroundJob: Serialize + DeserializeOwned + Send + Sync + 'static {
     fn enqueue_with_priority(
         &self,
         conn: &mut impl LoadConnection<Backend = Pg>,
-        job_priority: i16,
+        priority: i16,
     ) -> Result<Option<i64>, EnqueueError> {
-        let job_data = serde_json::to_value(self)?;
+        let data = serde_json::to_value(self)?;
 
         if Self::DEDUPLICATED {
-            let similar_jobs = background_jobs::table
-                .select(background_jobs::id)
-                .filter(background_jobs::job_type.eq(Self::JOB_NAME))
-                .filter(background_jobs::data.eq(&job_data))
-                .filter(background_jobs::priority.eq(job_priority))
-                .for_update()
-                .skip_locked();
-
-            let deduplicated_select = diesel::select((
-                Self::JOB_NAME.into_sql::<Text>(),
-                (&job_data).into_sql::<Jsonb>(),
-                job_priority.into_sql::<Int2>(),
-            ))
-            .filter(not(exists(similar_jobs)));
-
-            let id = diesel::insert_into(background_jobs::table)
-                .values(deduplicated_select)
-                .into_columns((
-                    background_jobs::job_type,
-                    background_jobs::data,
-                    background_jobs::priority,
-                ))
-                .returning(background_jobs::id)
-                .get_result::<i64>(conn)
-                .optional()?;
-
-            Ok(id)
+            Ok(enqueue_deduplicated(conn, Self::JOB_NAME, &data, priority)?)
         } else {
-            let id = diesel::insert_into(background_jobs::table)
-                .values((
-                    background_jobs::job_type.eq(Self::JOB_NAME),
-                    background_jobs::data.eq(job_data),
-                    background_jobs::priority.eq(job_priority),
-                ))
-                .returning(background_jobs::id)
-                .get_result(conn)?;
-
-            Ok(Some(id))
+            Ok(Some(enqueue_simple(conn, Self::JOB_NAME, &data, priority)?))
         }
     }
 }
+
+fn enqueue_deduplicated(
+    conn: &mut impl LoadConnection<Backend = Pg>,
+    job_type: &str,
+    data: &Value,
+    priority: i16,
+) -> Result<Option<i64>, EnqueueError> {
+    let similar_jobs = background_jobs::table
+        .select(background_jobs::id)
+        .filter(background_jobs::job_type.eq(job_type))
+        .filter(background_jobs::data.eq(data))
+        .filter(background_jobs::priority.eq(priority))
+        .for_update()
+        .skip_locked();
+
+    let deduplicated_select = diesel::select((
+        job_type.into_sql::<Text>(),
+        data.into_sql::<Jsonb>(),
+        priority.into_sql::<Int2>(),
+    ))
+    .filter(not(exists(similar_jobs)));
+
+    let id = diesel::insert_into(background_jobs::table)
+        .values(deduplicated_select)
+        .into_columns((
+            background_jobs::job_type,
+            background_jobs::data,
+            background_jobs::priority,
+        ))
+        .returning(background_jobs::id)
+        .get_result::<i64>(conn)
+        .optional()?;
+
+    Ok(id)
+}
+
+fn enqueue_simple(
+    conn: &mut impl LoadConnection<Backend = Pg>,
+    job_type: &str,
+    data: &Value,
+    priority: i16,
+) -> Result<i64, EnqueueError> {
+    let id = diesel::insert_into(background_jobs::table)
+        .values((
+            background_jobs::job_type.eq(job_type),
+            background_jobs::data.eq(data),
+            background_jobs::priority.eq(priority),
+        ))
+        .returning(background_jobs::id)
+        .get_result(conn)?;
+
+    Ok(id)
+}