From 25b72877c84bd716ecb3e8344b9b6fd1418f58ad Mon Sep 17 00:00:00 2001
From: Vishnu Tejas <vishnutejase@gmail.com>
Date: Fri, 2 May 2025 15:40:24 +0530
Subject: [PATCH] Added a query to get the absents of month

---
 src/graphql/queries/attendance_queries.rs | 39 ++++++++++++++++++++++-
 src/models/attendance.rs                  |  8 +++++
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/src/graphql/queries/attendance_queries.rs b/src/graphql/queries/attendance_queries.rs
index 2050051..0bc4772 100644
--- a/src/graphql/queries/attendance_queries.rs
+++ b/src/graphql/queries/attendance_queries.rs
@@ -1,7 +1,8 @@
 use std::sync::Arc;
 
-use crate::models::attendance::{Attendance, AttendanceWithMember};
+use crate::models::attendance::{AbsentsWithMember, Attendance, AttendanceWithMember};
 use async_graphql::{Context, Object, Result};
+use chrono::Datelike;
 use chrono::NaiveDate;
 use sqlx::PgPool;
 
@@ -41,4 +42,40 @@ impl AttendanceQueries {
 
         Ok(records)
     }
+
+    async fn absents_by_month(
+        &self,
+        ctx: &Context<'_>,
+        date: NaiveDate,
+    ) -> Result<Vec<AbsentsWithMember>> {
+        let pool = ctx.data::<Arc<PgPool>>().expect("Pool must be in context.");
+
+        let end_date = date
+            .with_day(1)
+            .unwrap()
+            .with_month(date.month() + 1)
+            .unwrap();
+
+        let records = sqlx::query_as::<_, AbsentsWithMember>(
+            "SELECT mem.name, mem.year, att.member_id,
+                COUNT(*) AS absent_days
+            FROM attendance att
+            JOIN member mem ON att.member_id = mem.member_id
+            WHERE
+                att.is_present = FALSE
+                AND att.date >= $1
+                AND att.date < $2
+            GROUP BY
+                att.member_id, mem.name, mem.year
+            ORDER BY
+                absent_days DESC, mem.name
+            ",
+        )
+        .bind(date)
+        .bind(end_date)
+        .fetch_all(pool.as_ref())
+        .await?;
+
+        Ok(records)
+    }
 }
diff --git a/src/models/attendance.rs b/src/models/attendance.rs
index 9efc9dc..f129c64 100644
--- a/src/models/attendance.rs
+++ b/src/models/attendance.rs
@@ -58,3 +58,11 @@ pub struct AttendanceWithMember {
     pub year: i32,
     pub group_id: i32,
 }
+
+#[derive(SimpleObject, FromRow)]
+pub struct AbsentsWithMember {
+    pub member_id: i32,
+    pub absent_days: i64,
+    pub name: String,
+    pub year: i32,
+}