added searching and sorting system

api/src/services/CourseSerivce.ts

@@ -107,7 +107,18 @@ export async function insertCourseEvent(event: CourseEventDetails): Promise<numb
     }
 }
 
-export async function getCourseEvents(): Promise<CourseEventSummary[]> {
+export async function getCourseEvents(sortDir: string, search: string = ""): Promise<CourseEventSummary[]> {
+
+    let params = [];
+    let searchString = "";
+    if (search !== "") {
+        searchString = `WHERE (C.name LIKE ? OR
+                     C.short_name LIKE ? OR
+                     M.name LIKE ?) `;
+        const p = `%${search}%`;
+        params.push(p, p, p);
+    }
+
     const sql = `SELECT 
                     E.id AS event_id,
                     E.course_id,
@@ -120,8 +131,12 @@ export async function getCourseEvents(): Promise<CourseEventSummary[]> {
                 LEFT JOIN courses AS C 
                     ON E.course_id = C.id
                 LEFT JOIN members AS M
-                    ON E.created_by = M.id;`;
-    let events: CourseEventSummary[] = await pool.query(sql);
+                    ON E.created_by = M.id
+                ${searchString}
+                ORDER BY E.event_date ${sortDir};`;
+    console.log(sql)
+    console.log(params)
+    let events: CourseEventSummary[] = await pool.query(sql, params);
     return events;
 }