can add and remove individual members to and from groups

myriad/manage.py

 @login_required
 def edit(mid):
     db = get_db()
-    member = db.execute("SELECT * FROM member WHERE id=(?)",(mid,)).fetchone()
-    icons = db.execute("SELECT * FROM icons WHERE member_id=(?)",(mid,)).fetchall()
 
     if request.method == "POST":
         if "name" in request.form:
             db.execute("UPDATE member SET card_border=(?), card_bg=(?), heading_bg=(?), heading_border=(?), heading_name=(?), heading_subtitle=(?), card_text=(?), icon_border=(?), a1=(?), a2=(?) WHERE id=(?)",(c9, c10, c11, c12, c13, c14, c15, c16, c21, c22, mid))
             db.commit()
 
+        if "gid_add" in request.form:
+            gid = request.form["gid_add"]
+            db.execute("INSERT INTO group_members (group_id,member_id) VALUES (?,?)",(gid,mid))
+            db.commit()
+
+        elif "gid_remove" in request.form:
+            gid = request.form["gid_remove"]
+            db.execute("DELETE FROM group_members WHERE group_id=(?) AND member_id=(?)",(gid,mid))
+            db.commit()
 
-        member = db.execute("SELECT * FROM member WHERE id=(?)",(mid,)).fetchone()
-        icons = db.execute("SELECT * FROM icons WHERE member_id=(?)",(mid,)).fetchall()
-        return render_template("manage/edit.html", member=member, icons=icons)
 
-    return render_template("manage/edit.html", member=member, icons=icons)
+    member = db.execute("SELECT * FROM member WHERE id=(?)",(mid,)).fetchone()
+    icons = db.execute("SELECT * FROM icons WHERE member_id=(?)",(mid,)).fetchall()
+
+    groups = db.execute("SELECT * FROM groups").fetchall()
+    member_groups = db.execute("SELECT * FROM group_members WHERE member_id=(?)",(mid,)).fetchall()
+    
+    unjoined_groups = []
+    joined_groups = []
+
+    joined_ids = []
+    for group in member_groups:
+        joined_ids.append(group[1])
+
+    for group in groups:
+        if group[0] in joined_ids:
+            joined_groups.append(group)
+        else:
+            unjoined_groups.append(group)
+
+    return render_template("manage/edit.html", member=member, icons=icons, unjoined_groups=unjoined_groups, joined_groups=joined_groups)
 
 @bp.route("/set_main_icon/<mid>/<icon_id>")
 @login_required
         desc = request.form['desc']
         db.execute("INSERT INTO groups (group_name, group_description) VALUES (?, ?)",(name, desc))
         db.commit()
-        
+
 
     groups = db.execute("SELECT * FROM groups").fetchall()
     return render_template("manage/groups.html", groups=groups)

myriad/templates/manage/edit.html

     <input type="submit" value="Submit">
   </form>
 
+  <div class="heading">Manage groups</div>
+
+  <form method="post">
+    <select name="gid_add" id="gid_add">
+      {% for group in unjoined_groups %}
+      <option value="{{group[0]}}">{{group[1]}}</option>
+      {% endfor %}
+    </select>
+    <input type="submit" value="Add to group">
+  </form>
+
+  <form method="post">
+    <select name="gid_remove" id="gid_remove">
+      {% for group in joined_groups %}
+      <option value="{{group[0]}}">{{group[1]}}</option>
+      {% endfor %}
+    </select>
+    <input type="submit" value="Remove from group">
+  </form>
+
+
   <div class="heading">Manage Icons</div>
   <form method="post" enctype="multipart/form-data">
       <input type="file" name="file">