Add selection_mark_field

advlabdb/model_dependent_funs.py

@@ -1,11 +1,13 @@
 # Functions dependent on advlabdb.models
 
+from functools import cache
+
 from flask import flash, url_for
 from flask_admin.menu import MenuLink
 from flask_security import current_user
 from sqlalchemy import select
-from wtforms.fields import BooleanField, IntegerField, StringField
+from wtforms.fields import BooleanField, IntegerField, SelectField, StringField
-from wtforms.validators import NumberRange, Optional
+from wtforms.validators import DataRequired, NumberRange, Optional
 
 from . import app, db
 from .models import MAX_MARK, MIN_MARK, Semester
@@ -44,15 +46,45 @@ def active_semester_str():
     return active_semester_str
 
 
-def mark_field(mark_type: str, default=None):
+def mark_field(mark_type: str):
     return IntegerField(
         mark_type + " Mark",
-        default=default,
         validators=[Optional(), NumberRange(MIN_MARK, MAX_MARK)],
         description=f"Between {MIN_MARK} and {MAX_MARK}.",
     )
 
 
+@cache
+def selection_mark_field_choices():
+    choices = [(mark, str(mark)) for mark in range(MAX_MARK, MIN_MARK - 1, -1)]
+    choices.insert(0, (-1, "Not assigned yet"))
+
+    return choices
+
+
+def selection_mark_field(mark_type: str, default):
+    choices = selection_mark_field_choices()
+
+    if default == None:
+        default = -1
+
+    return SelectField(
+        mark_type + " Mark",
+        default=default,
+        choices=choices,
+        validators=[DataRequired()],
+        render_kw={"class": "form-control"},
+    )
+
+
+def parse_selection_mark_field(field):
+    data = int(field.data)
+    if data == -1:
+        return None
+
+    return data
+
+
 def user_info_fields():
     phone_number = StringField(
         "Phone Number",