Modify : changed the syntax of execution of sql command for aggregate function

Author: tejasai2007

src/graphql/queries/member_queries.rs

@@ -355,49 +355,36 @@ impl Lab {
     ) -> Result<Vec<Aggregate>> {
         let pool = ctx.data::<Arc<PgPool>>().expect("Pool must be in context.");
 
-        // will give the total count
-        let mut query = sqlx::QueryBuilder::new(
-            r#"
-        SELECT 
-            all_dates.date,  
-            p.present_count
-        FROM (
+        let results: Vec<Aggregate> = sqlx::query_as::<_, Aggregate>(
+            "
             SELECT 
-                date, 
-                COUNT(*) AS total_count
-            FROM attendance
-            WHERE date BETWEEN "#,
-        );
-
-        query.push_bind(start_date);
-        query.push(" AND ");
-        query.push_bind(end_date);
-        query.push(" GROUP BY date ) AS all_dates ");
-
-        // sub query of present members joined with the above total countS
-        query.push(
-            "LEFT JOIN (
+                all_dates.date,  
+                p.present_count
+            FROM (
+                SELECT 
+                    date, 
+                    COUNT(*) AS total_count
+                FROM attendance
+                WHERE date BETWEEN $1 AND $2
+                GROUP BY date
+            ) AS all_dates
+            LEFT JOIN (
                 SELECT 
                     date, 
                     COUNT(*) AS present_count
                 FROM attendance
-                WHERE is_present = 't'
-                AND date BETWEEN ",
-        );
-        query.push_bind(start_date);
-        query.push(" AND ");
-        query.push_bind(end_date);
-        query.push(
-            " GROUP BY date
+                WHERE is_present = TRUE
+                AND date BETWEEN $1 AND $2
+                GROUP BY date
             ) AS p
             ON all_dates.date = p.date
-            ORDER BY all_dates.date;",
-        );
-
-        let results: Vec<Aggregate> = query
-            .build_query_as::<Aggregate>()
-            .fetch_all(pool.as_ref())
-            .await?;
+            ORDER BY all_dates.date;
+            ",
+        )
+        .bind(start_date)
+        .bind(end_date)
+        .fetch_all(pool.as_ref())
+        .await?;
 
         Ok(results)
     }