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Dynamic heading and merged headers for approval sheet export #2011

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Merged
vikrantwiz02 merged 1 commit into from
Oct 7, 2026
Merged

Dynamic heading and merged headers for approval sheet export #2011

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161 changes: 87 additions & 74 deletions FusionIIIT/applications/examination/api/views.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1373,6 +1373,14 @@ class GenerateResultAPI(APIView):
"""
permission_classes = [IsAuthenticated]

@staticmethod
def _ordinal_suffix(n):
n = int(n)
if 11 <= (n % 100) <= 13:
return f"{n}th"
suffix = {1: "st", 2: "nd", 3: "rd"}.get(n % 10, "th")
return f"{n}{suffix}"

def post(self, request):
try:
role = request.data.get("Role")
Expand Down Expand Up @@ -1413,7 +1421,8 @@ def post(self, request):
).exclude(grade__isnull=True).exclude(grade="").values_list('course_id_id', flat=True).distinct()

courses = Courses.objects.filter(id__in=course_ids).order_by('code')
courses_map = {course.id: course.credit for course in courses}
courses_list = list(courses) # evaluate once; order is now stable
courses_map = {course.id: course.credit for course in courses_list}

disc_name = batch_obj.discipline.name
spec_match = re.search(r'\(([^)]+)\)', disc_name)
Expand All @@ -1431,6 +1440,25 @@ def post(self, request):
sem_label = f"Sem{semester}"
download_filename = f"{programme_str}_{disc_str}_{batch_year}_{sem_label}_{acad_year_str}.xlsx"

if batch_obj.curriculum_id:
category = batch_obj.curriculum.programme.category
elif batch_obj.name.startswith('PhD'):
category = 'PHD'
elif batch_obj.name.startswith('M.Tech') or batch_obj.name == 'M.Des':
category = 'PG'
else:
category = 'UG'
batch_label = f"{category}{batch_year}"
branch_label = branch if branch else batch_obj.discipline.acronym
if semester_type == "Summer Semester":
sem_clause = f"SUMMER-{semester // 2}"
else:
sem_clause = f"SEM-{self._ordinal_suffix(semester)}"
heading = (
f"Approval sheet for {semester_type} AY{acad_year_str} "
f"({batch_label} Batch ({branch_label})) - {sem_clause}"
)

wb = Workbook()
ws = wb.active
ws.title = "Student Grades"
Expand All @@ -1443,119 +1471,105 @@ def post(self, request):
left=Side(style="thin"), right=Side(style="thin"),
top=Side(style="thin"), bottom=Side(style="thin")
)
center_align = Alignment(horizontal="center", vertical="center", wrap_text=True)

total_cols = 3 + 2 * len(courses_list) + 7
last_col_letter = get_column_letter(max(total_cols, 1))

ws.merge_cells(f"A1:{last_col_letter}1")
heading_cell = ws["A1"]
heading_cell.value = heading
heading_cell.font = Font(bold=True, size=12)
heading_cell.alignment = center_align
ws.row_dimensions[1].height = 24

NUM_ROW = 2
HDR_START = 3
HDR_END = 6
DATA_START = HDR_END + 1

# Setup header rows: S. No, Roll No and Name in columns A, B and C.
ws["A1"] = "S. No"
ws["B1"] = "Roll No"
ws["C1"] = "Name"
for col in ("A", "B"):
cell = ws[col + "1"]
cell.alignment = Alignment(horizontal="center", vertical="center")
col_idx = 4
for subject_no, course in enumerate(courses_list, start=1):
ws.merge_cells(start_row=NUM_ROW, start_column=col_idx, end_row=NUM_ROW, end_column=col_idx + 1)
cell = ws.cell(row=NUM_ROW, column=col_idx)
cell.value = subject_no
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill
col_idx += 2

for col_num, label in enumerate(["S. No", "Roll No", "Name"], start=1):
ws.merge_cells(start_row=NUM_ROW, start_column=col_num, end_row=HDR_END, end_column=col_num)
cell = ws.cell(row=NUM_ROW, column=col_num)
cell.value = label
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill
cell = ws["C1"]
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill
ws.column_dimensions[get_column_letter(1)].width = 12
ws.column_dimensions[get_column_letter(2)].width = 18
ws.column_dimensions[get_column_letter(3)].width = 30

# Starting from column 4, add headers for each course (each course uses 2 columns for Grade and Remarks).
col_idx = 4
for course in courses:
for course in courses_list:
# Merge cells for the course code header.
ws.merge_cells(start_row=1, start_column=col_idx, end_row=1, end_column=col_idx+1)
cell = ws.cell(row=1, column=col_idx)
ws.merge_cells(start_row=HDR_START, start_column=col_idx, end_row=HDR_START, end_column=col_idx+1)
cell = ws.cell(row=HDR_START, column=col_idx)
cell.value = course.code
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill

ws.merge_cells(start_row=2, start_column=col_idx, end_row=2, end_column=col_idx+1)
cell = ws.cell(row=2, column=col_idx)
ws.merge_cells(start_row=HDR_START+1, start_column=col_idx, end_row=HDR_START+1, end_column=col_idx+1)
cell = ws.cell(row=HDR_START+1, column=col_idx)
cell.value = course.name
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill

ws.merge_cells(start_row=3, start_column=col_idx, end_row=3, end_column=col_idx+1)
cell = ws.cell(row=3, column=col_idx)
ws.merge_cells(start_row=HDR_START+2, start_column=col_idx, end_row=HDR_START+2, end_column=col_idx+1)
cell = ws.cell(row=HDR_START+2, column=col_idx)
cell.value = course.credit
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=4, column=col_idx)
cell = ws.cell(row=HDR_END, column=col_idx)
cell.value = "Grade"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=4, column=col_idx+1)
cell = ws.cell(row=HDR_END, column=col_idx+1)
cell.value = "Remarks"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill

ws.column_dimensions[get_column_letter(col_idx)].width = 25
ws.column_dimensions[get_column_letter(col_idx+1)].width = 25
col_idx += 2

# Append headers for SPI and CPI.
cell = ws.cell(row=1, column=col_idx)
cell.value = "SPI"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=1, column=col_idx+1)
cell.value = "CPI"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=1, column=col_idx+2)
cell.value = "SU"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=1, column=col_idx+3)
cell.value = "TU"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=1, column=col_idx+4)
cell.value = "SP"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=1, column=col_idx+5)
cell.value = "TP"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill

cell = ws.cell(row=1, column=col_idx+6)
cell.value = "WARNING"
cell.alignment = Alignment(horizontal="center", vertical="center")
cell.font = Font(bold=True)
cell.fill = header_fill
for label in ("SPI", "CPI", "SU", "TU", "SP", "TP", "WARNING"):
ws.merge_cells(start_row=NUM_ROW, start_column=col_idx, end_row=HDR_END, end_column=col_idx)
cell = ws.cell(row=NUM_ROW, column=col_idx)
cell.value = label
cell.alignment = center_align
cell.font = Font(bold=True)
cell.fill = header_fill
ws.column_dimensions[get_column_letter(col_idx)].width = 10
col_idx += 1

max_col = ws.max_column
for row in range(1, 5):
for row in range(NUM_ROW, HDR_END + 1):
for col in range(1, max_col + 1):
cell = ws.cell(row=row, column=col)
cell.fill = header_fill
cell.border = thin_border
cell.alignment = center_align
total_columns = ws.max_column

# Fill in student rows, starting from row 5.
row_idx = 5
row_idx = DATA_START

# --- Bulk prefetch to avoid N+1 for 300+ students ---
User = get_user_model()
Expand Down Expand Up @@ -1594,7 +1608,7 @@ def post(self, request):

grades_map = grades_by_student.get(student.id_id, {})
col_ptr = 4
for course in courses:
for course in courses_list:
grade_entry = grades_map.get(course.id)
grade_val = grade_entry.grade if grade_entry else '-'

Expand Down Expand Up @@ -1664,9 +1678,8 @@ def post(self, request):

row_idx += 1

# Apply borders on all populated cells (headers + student rows).
last_data_row = row_idx - 1
for row in range(1, last_data_row + 1):
for row in range(NUM_ROW, last_data_row + 1):
for col in range(1, total_columns + 1):
ws.cell(row=row, column=col).border = thin_border

Expand Down
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