fix: store and get submission ID

DESCRIPTION
    If the same survey_user submits the survey many times, their first
    submission ID was being used to record benchmarks from their future
    submissions. Which resulted in submissions with empty benchmarks.

    This patch gets the submission ID as the record is being created and
    records benches using that. Bug fix and one less query.

src/api/v1/bench.rs

@@ -215,43 +215,29 @@ async fn submit(
     let user_id = Uuid::from_str(&username).unwrap();
     let payload = payload.into_inner();
 
-    sqlx::query!(
+    struct ID {
+        id: i32,
+    }
+    let resp_id = sqlx::query_as!(
+        ID,
         "INSERT INTO survey_responses (
                         user_id, 
                         campaign_id,
                         device_user_provided,
                         device_software_recognised,
                         threads
-                    ) VALUES ($1, $2, $3, $4, $5);",
+                    ) VALUES ($1, $2, $3, $4, $5)
+        RETURNING ID;",
         &user_id,
         &campaign_id,
         &payload.device_user_provided,
         &payload.device_software_recognised,
         &payload.threads
     )
-    .execute(&data.db)
-    .await?;
-
-    struct ID {
-        id: i32,
-    }
-
-    let resp_id = sqlx::query_as!(
-        ID,
-        "SELECT ID 
-         FROM survey_responses 
-         WHERE 
-             user_id = $1 
-         AND 
-             device_software_recognised = $2;",
-        &user_id,
-        &payload.device_software_recognised
-    )
     .fetch_one(&data.db)
     .await?;
 
     let mut futs = Vec::with_capacity(payload.benches.len());
-
     for bench in payload.benches.iter() {
         let fut = sqlx::query!(
             "INSERT INTO survey_benches 
@@ -261,8 +247,7 @@ async fn submit(
             &bench.difficulty,
             bench.duration
         )
-        .execute(&data.db);
-
+        .execute(&data.db); //.await?;
         futs.push(fut);
     }