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application.py
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application.py
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import os, sys, hashlib, uuid, datetime, random
from flask import Flask, flash, jsonify, redirect, render_template, request, session, Markup
from flask_session import Session
from tempfile import mkdtemp
from werkzeug.exceptions import default_exceptions, HTTPException, InternalServerError
import mysql.connector
from mysql.connector import errorcode
from helpers import SQL
from helpers import apology, login_required, admin_access_required
from helpers import getTimeTable, getCreateTimeTable, getCreateTimeTable_suggest, getFacSubDetails, getFacSubDetailsAsMap
from helpers import createTimeTable, getalldays, getallperiods
# Configure application
app = Flask(__name__)
# Get Connection to database
sql = SQL('localhost', os.getenv('TTM_USER'), os.getenv('TTM_PASSWORD'), os.getenv('TTM_DATABASE'))
table_keys = {
'student': 'sid',
'faculty': 'fac_id',
'parent details': 'parent id',
'account': 'username',
'qualification': 'fac_id',
'subject': 'id'
}
fieldmap = {
'student': {
'order': 1,
'other_table_fields':
{
'username': 'account',
'parent id': 'parent details'
},
'cols': {
'sid': ['Student Id', 'registration id'],
'name': ['Full Name', 'student name'],
'email': ['email', 'email'],
'username': ['username', 'username'],
'mobile': ['Mobile Number', 'mobile number'],
'paddress': ['Permanent Address', 'permanent address'],
'caddress': ['Correspondance Address', 'corr. address'],
'dob': ['Date Of Birth', 'date of birth'],
'bgrp': ['Blood Group', 'blood group'],
'gender': ['gender', 'gender'],
'class': ['class', 'class'],
'parent id': [None, 'parent id']
},
}
,
'faculty':
{
'order': 1,
'other_table_fields':
{
'username': 'account',
},
'cols':
{
'fac_id': ['Faculty Id', 'faculty id'],
'name': ['Full Name', 'name'],
'username': ['username', 'username'],
'email': ['email', 'email'],
'mobile': ['Mobile Number', 'mobile number'],
'paddress': ['Permanent Address', 'permanent address'],
'caddress': ['Correspondance Address', 'corr. address'],
'dob': ['Date Of Birth', 'date of birth'],
'bgrp': ['Blood Group', 'blood group'],
'gender': ['gender', 'gender'],
'speciality': ['speciality', 'subject speciality'],
'experience': ['experience', 'experience']
}
},
'parent details':
{
'order': 0,
'cols':
{
'parent id': [None, 'parent id'],
'fname': ["Father's Name", 'father name'],
'fdob': ["Father's Date Of Birth", 'father dob'],
'mname': ["Mother's Name", 'father name'],
'mdob': ["Mother's Date Of Birth", 'mother dob'],
'femail': ["Father's Email", 'father email id'],
'memail': ["Mother's Email", 'mother email'],
'fmobile': ["Father's Mobile Number", 'father mobile number'],
'mmobile': ["Mother's Mobile Number", 'mother mobile number'],
}
},
'account':
{
'order': 0,
'cols':
{
'username': ['username', 'username'],
'password': ['password', 'password'],
'role': ['role', 'role']
}
},
'qualification':
{
'order': 2,
'cols':
{
'fac_id': [None, 'faculty id'],
'degree': ['degree', 'degree'],
'institute': ['institute', 'institute'],
'year': ['year', 'year'],
'percentage': ['percentage', 'percentage'],
}
},
'subject':
{
'order': 0,
'cols':
{
'id': ['Subject Id', 'subject id'],
'name': ['Subject Name', 'subject name'],
'nlects': ['Lectures Required', 'lectures required'],
'tlects': ['Total Lectures Required', 'total lectures required'],
'credits': ['Credits', 'credits'],
'syll': ['Syllabus', 'syllabus'],
'eval_cret': ['Evaluation Creteria', 'evaluation creteria']
}
}
}
# Ensure templates are auto-reloaded
app.config["TEMPLATES_AUTO_RELOAD"] = True
# database_requests is a dictionary which maps users requests
# request :
# format[req_id, userid, type, on (faculty, student,..), row_id (faculty id, ..), current time]
database_requests = {}
# Ensure responses aren't cached
@app.after_request
def after_request(response):
response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
response.headers["Expires"] = 0
response.headers["Pragma"] = "no-cache"
return response
# Configure session to use filesystem (instead of signed cookies)
app.config["SESSION_FILE_DIR"] = mkdtemp()
app.config["SESSION_PERMANENT"] = False
app.config["SESSION_TYPE"] = "filesystem"
Session(app)
@app.route("/")
@login_required
def index():
return render_template("index.html")
@app.route("/change_password", methods=['GET'])
@login_required
def changePassword():
"""Change Password"""
if session['user_id'] not in database_requests:
database_requests[session['user_id']] = {}
elif len(database_requests[session['user_id']]) > 0:
for req in database_requests[session['user_id']].copy():
del database_requests[session['user_id']][req]
req_id = str(uuid.uuid4())
req = [req_id, session['user_id'], 'update', 'account', session['username'], datetime.datetime.now()]
database_requests[session['user_id']][req_id] = req
return render_template("changePassword.html", req_id=req_id)
@app.route("/create_class", methods=['GET', 'POST'])
@admin_access_required
def create_class():
if request.method == 'GET':
return render_template('/classDetails.html', mode='create', title='Class Creator')
else:
cname = request.form.get('name')
if not cname:
return apology('Display Name is a Must',redirect_to=get_referer())
if not VALIDATION_STATUS[validate_classname(cname)]:
return apology('Display Name Invalid', redirect_to=get_referer())
res = sql.execute("select ifnull(max(substring(id, 2, 5)) + 1, 1) as id from class")
if len(res) != 1:
flash('Something went wrong', 'danger')
return redirect(get_referer())
cid = f'C{res[0][0]:05.0f}'
res = sql.execute('INSERT INTO class(`id`, `name`) VALUES (%(id)s, %(name)s)',{'id': cid, 'name': cname})
if res > 0:
flash(f'Class Created Successfully with ID: {cid}', 'success')
flash('Now Assign Room, Subjects and Faculties to it', 'info')
return redirect(f'/class_assignments?class={cid}&mode=update')
else:
flash('something went wrong', 'danger')
return redirect(get_referer())
@app.route("/create_tt", methods = ['GET', 'POST'])
@login_required
def create_tt():
if session['role'] != 'admin':
flash('Permission Denied', 'danger')
return redirect(get_referer())
if request.method == "POST":
days = getalldays(sql)
periods = getallperiods(sql)
count = 0
classId = request.form.get('classId')
schedule = []
facSubDetails = getFacSubDetails(classId, sql)
periodAllotedCount = dict()
for day in days:
for period in periods:
timeslotId = period.tid
dayId = day['id']
val = request.form.get('fac_'+dayId+"_"+timeslotId)
if val == None or val == '' or val == 'free':
continue
count += 1
facultyId = val[0 : val.find("_")]
subjectId = val[val.find("_") + 1:]
roomId = request.form.get('room_'+dayId+"_"+timeslotId)
if subjectId in periodAllotedCount:
periodAllotedCount[subjectId] += 1
else:
periodAllotedCount[subjectId] = 1
schedule.append(
{'dayId':dayId,
"timeslotId":timeslotId,
'classId':classId,
'subjectId':subjectId,
'facultyId':facultyId,
'roomId':roomId,
'wef':request.form.get('wef')
})
for facsub in facSubDetails:
assigned = periodAllotedCount[facsub['subId']]
if type(assigned) != type(4) or assigned < facsub['lectures']:
flash('Subject Requirements not met', 'danger')
return redirect(get_referer())
createTimeTable(schedule, sql)
flash('schedule created / updated successfully', 'success')
return redirect('/search_tt')
else:
currentId = request.args.get("value_selector")
if not currentId:
return redirect('/search_tt?mode=create')
timetable = getCreateTimeTable(currentId, sql)
facSubDetails = getFacSubDetails(currentId, sql)
theaders = timetable[0].copy()
timetable = timetable[1:]
try:
# Query database for username
cls_rows = sql.execute(r"""select id,name,case when
id in (select distinct `class id` from schedule) then '1'
else '0' end, case when id in
(select distinct `class id` from class_subject_faculty) then '1'
else '0' end from class""")
except mysql.connector.Error as err:
if err.errno == errorcode.ER_ACCESS_DENIED_ERROR:
print("Something is wrong with your user name or password")
elif err.errno == errorcode.ER_BAD_DB_ERROR:
print("Database does not exist")
else:
print(err)
return
cls_data = []
for clsid, clsname, ca, cbe in cls_rows:
if ca == '1':
is_assigned = True
else:
is_assigned = False
if cbe == '1':
can_be_assigned = True
else:
can_be_assigned = False
cls_data.append({'id' :clsid, 'name': clsname, 'assigned': is_assigned,
'assignable': can_be_assigned})
return render_template("create_tt2.html", gclasses=cls_data,
currentId = currentId,theaders=theaders, timetable=timetable)
@app.route('/class_assignments', methods=['GET', 'POST'])
@login_required
def class_assignments():
if request.method == 'GET':
classId = request.args.get('class', '')
mode = request.args.get('mode', 'view')
if mode == 'view':
data = getAssignmentDetailsWithNames(classId)
else:
data = getAssignmentDetails(classId)
return render_template('ClassAssignments.html', classId=classId,
predata=data, mode=mode)
else:
if session['role'] != 'admin':
flash('access denied', 'danger')
return redirect(get_referer())
tt_archived = False
try:
rid = request.form.get('room_id')
cid = request.form.get('class_id')
values = []
sql.start_transaction()
res = sql.execute_trans("""select exists(select * from class where `id`=%(cid)s), exists(select * from room where
`id`=%(rid)s)""", {'cid': cid, 'rid': rid})
for c,r in res:
c, r = bool(c), bool(r)
if not c or not r:
flash('Invalid Entries', 'danger')
return redirect('/class_assignments?class='+cid)
for i in range(8):
sub, fac = request.form.get('subject_'+str(i)),request.form.get('faculty_'+str(i))
if sub and fac:
validate_q = """select exists(select * from faculty where `faculty id`=%(fid)s), exists(select * from subject where
`subject id`=%(sid)s)"""
res = sql.execute_trans(validate_q, {'fid': fac, 'sid': sub})
for f,s in res:
f, s = bool(f), bool(s)
if not f or not s:
flash('Invalid Entries', 'danger')
return redirect('/class_assignments?class='+cid)
values.append({'sid': sub, 'fid': fac, 'rid': rid, 'cid': cid})
sql.execute_trans('UPDATE class set `room id` = %(rid)s WHERE id=%(cid)s', {'cid': cid, 'rid': rid})
ans = sql.execute_trans('delete from class_subject_faculty where `class id`=%(cid)s',{'cid':cid})
if ans and ans > 0:
tt_archived = True
query = """select max(substr(`time table id`,8,3)) from schedule_records
where `class id` = %(id)s"""
ans = sql.execute(query, {'id': cid})
if type(ans) != type(list()):
return None
num = ans[0][0]
if type(num) == type(1):
num += 1
else:
num = 0
query = r"""INSERT INTO `schedule_records`(`time table id`,
`day id`,`timeslot id`,
`class id`,`subject id`,`faculty id`,`room id`,`from`,`to`)
select %(tid)s,`day id`,`timeslot id`,
`class id`,`subject id`,`faculty id`,`room id`,`wef`,sysdate()
from schedule where `class id`=%(id)s"""
sql.execute_trans(query, {"tid":cid + '_{:03d}'.format(num), "id":cid})
sql.execute_many_trans('''insert into class_subject_faculty
(`class id`, `faculty id`, `subject id`,`room id`) values(%(cid)s, %(fid)s,%(sid)s, %(rid)s)''', values)
query = r"delete from schedule where `class id`=%(id)s"
sql.execute_trans(query,{'id': cid})
sql.commit()
except:
sql.rollback()
print('in ClassAssignments',sys.exc_info())
flash('something went wrong','danger')
return redirect('/class_assignments?class='+cid)
finally:
sql.close()
flash('Changes saved successfully', 'success')
if tt_archived:
flash(Markup(f'''Due to this update current time Table if any has been archived and new one must be created\n
To do that now <a href="create_tt?value_selector={cid}">Click Me</a>'''), 'Info')
return redirect('/classes_subjects')
@app.route('/classes_subjects')
@login_required
def classes_subject():
return render_template('classesAndSubjects.html')
@app.route('/create_room', methods=['GET', 'POST'])
@admin_access_required
def create_room():
if request.method == 'GET':
return render_template('roomDetails.html', mode='create')
else:
rid = request.form.get('id')
cap = request.form.get('cap')
if not rid.isdigit():
flash('Invalid ID', 'danger')
return redirect('/create_room')
dat = sql.execute('select * from room where id=%(rid)s',{'rid': rid})
if len(dat) > 0:
flash('Duplicate ID', 'danger')
return redirect('/create_room')
res = sql.execute('insert into room values (%(rid)s, %(cap)s)', {'rid': rid, 'cap': cap})
if res > 0:
flash('room successfully created', 'success')
else:
flash('something went wrong', 'danger')
return redirect('/classes_subjects')
@app.route('/create_subject', methods=['GET', 'POST'])
@admin_access_required
def create_subject():
if request.method == 'GET':
return render_template('subjectDetails.html', mode='create')
else:
sid = request.form.get('id')
sname = request.form.get('name')
dat = sql.execute('select `subject id` from subject where `subject id`=%(sid)s',{'sid': sid})
if len(dat) > 0:
flash('Duplicate ID', 'danger')
return redirect('/create_subject')
lects = request.form.get('nlect')
tlects = request.form.get('tlect')
cred = request.form.get('credits')
syll = request.form.get('syllabus')
eval_cret = request.form.get('eval_cret')
query = 'insert into subject values (%(sid)s, %(sname)s, %(lw)s, %(tl)s, %(cred)s, %(syl)s, %(ev)s)'
res = sql.execute(query, {'sid': sid, 'sname': sname, 'lw': lects, 'tl': tlects, 'cred': cred, 'syl': syll, 'ev': eval_cret})
if res > 0:
flash('subject successfully created', 'success')
else:
flash('something went wrong', 'danger')
return redirect('/classes_subjects')
@app.route('/getData')
@login_required
def get_data():
typeOfSearch = request.args.get('type', None)
if typeOfSearch == None:
return None
elif typeOfSearch == 'get_tt':
vid = request.args.get('id', 'N')
if vid[0].lower() == 'f':
query = 'SELECT name from faculty where `faculty id`=%(id)s'
elif vid[0].lower() == 'c':
query = 'SELECT id from class where id=%(id)s'
else:
query = 'SELECT id from room where id=%(id)s'
rows = sql.execute(query, {'id': vid})
if rows == None:
return jsonify({'error' : 'internal connection error'})
if len(rows) < 1:
return jsonify({'error' : 'invalid id'})
timetable = getTimeTable(vid, sql)
if len(timetable) < 1:
return jsonify({"error":'NOT FOUND'})
theaders = timetable[0].copy()
timetable = timetable[1:]
data = {'header': theaders, 'body': timetable, 'error': ''}
return jsonify(data)
elif typeOfSearch == 'classes':
data = getClassValuesForSearchTT()
elif typeOfSearch == 'faculty':
data = getFacValuesForSearchTT()
elif typeOfSearch == 'available_rooms':
classId = request.args.get('class', None)
data = getAvailableRooms(classId)
elif typeOfSearch == 'subjects':
data = getSubjects()
elif typeOfSearch == 'facsub_tt':
clas = request.args.get('class')
if not clas:
return None
data = getFacSubDetails(clas, sql)
else:
return None
return jsonify(data)
@app.route('/get_schedule_suggestion', methods=['POST'])
@admin_access_required
def get_schedule_suggestion():
currentId = request.form.get("classId")
constraint_data, days, periods = getCreateTimeTable_suggest(currentId, sql)
facSubDetailsMap = getFacSubDetailsAsMap(currentId, sql)
# theaders = constraint_data[0].copy()
# constraint_data = constraint_data[1:]
count = 0
classId = request.form.get('classId')
schedule = []
periodsToAssign = []
for pi, period in enumerate(periods):
dayIndices = []
timeslotId = period.tid
for di, day in enumerate(days):
dayId = day['id']
val = request.form.get('fac_'+dayId+"_"+timeslotId)
if val == None or val == '' or val == 'free':
if val != 'free':
dayIndices.append(di)
continue
count += 1
facultyId = val[0 : val.find("_")]
subjectId = val[val.find("_") + 1:]
roomId = request.form.get('room_'+dayId+"_"+timeslotId)
facSubDetailsMap[subjectId]['allotted'] += 1
schedule.append(
{'dayId':dayId,
"timeslotId":timeslotId,
'classId':classId,
'subjectId':subjectId,
'facultyId':facultyId,
'roomId':roomId,
'wef':request.form.get('wef')
})
if len(dayIndices) > 0:
random.shuffle(dayIndices)
periodsToAssign.extend([(d, pi) for d in dayIndices])
required_assignments = get_requirement_diff(facSubDetailsMap)
if required_assignments < 1:
return jsonify({'type': 'fail', 'data':'ALREADY DONE'})
elif len(periodsToAssign) >= required_assignments:
suggestion = backtrack_suggest({}, periodsToAssign, 0, constraint_data, facSubDetailsMap)
if not suggestion:
return jsonify({'type': 'fail', 'data':'Not Possible'})
data = []
for period in suggestion:
data.append([period, suggestion[period][0], suggestion[period][1]])
return jsonify({'type': 'success', 'data':suggestion})
else:
return jsonify({'type':'fail','data':'Assignment Not Possible'})
def requirements_met(allotment_data):
'''
allotment_data can be a single dict {id, allotted, lectures}
or a dict of such dicts, eg {sub1: {id, allotted, lectures}}
'''
if 'allotted' in allotment_data:
if allotment_data['allotted'] < allotment_data['lectures']:
return False
else:
return True
for val in allotment_data:
if 'allotted' not in allotment_data[val]:
return False
if allotment_data[val]['allotted'] < allotment_data[val]['lectures']:
return False
return True
def get_requirement_diff(allotment_data):
'''
allotment_data can be a single dict {id, allotted, lectures}
or a dict of such dicts, eg {sub1: {id, allotted, lectures}}
'''
if 'allotted' in allotment_data:
diff = allotment_data['lectures'] - allotment_data['allotted']
if diff < 0:
diff = 0
return diff
final_diff = 0
for val in allotment_data:
if 'allotted' not in allotment_data[val]:
continue
diff = allotment_data[val]['lectures'] - allotment_data[val]['allotted']
if diff > 0:
final_diff += diff
return final_diff
def get_unassigned_facs(allotment_data, fac_data):
available_facs = fac_data
res = []
for v in available_facs:
if not requirements_met(allotment_data[v['sid']]):
res.append(v)
return res
def backtrack_suggest(suggested_schedule, periods_to_allot, index, required_data, allocation_data):
if requirements_met(allocation_data):
return suggested_schedule
if index >= len(periods_to_allot):
return None
period_data = periods_to_allot[index]
related_data = required_data[period_data[0]][period_data[1]]
room = related_data['rooms'][0]['id']
dayId, periodId = related_data['dayId'], related_data['periodId']
if len(related_data['facs']) < 1:
return backtrack_suggest(suggested_schedule, periods_to_allot, index + 1, required_data, allocation_data)
available_facs = get_unassigned_facs(allocation_data, related_data['facs'])
if len(available_facs) < 1:
return None
else:
random.shuffle(available_facs)
for option in available_facs:
suggested_schedule[dayId+'_'+periodId] = [option['fid']+'_'+option['sid'], room]
allocation_data[option['sid']]['allotted'] += 1
if False: # placeholder for binary checks, currently there are none
del suggested_schedule[dayId+'_'+periodId]
allocation_data[option['sid']]['allotted'] -= 1
continue
nd = backtrack_suggest(suggested_schedule, periods_to_allot, index + 1, required_data, allocation_data)
if not nd:
del suggested_schedule[dayId+'_'+periodId]
allocation_data[option['sid']]['allotted'] -= 1
continue
return nd
return None
def getAvailableRooms(classId=None):
rows = sql.execute(r"""select id, `sitting capacity`,
if(id = (select `room id` from class where id = %(cid)s), true, false) as current_d from room
where id not in (select ifnull(`room id`, 0) from class where id != %(cid)s)""", {'cid': classId})
if rows == None:
return
data = []
for rid, cap, current in rows:
data.append({'id' :rid, 'cap': cap, 'current': bool(current)})
return data
def getAssignmentDetails(classId):
rows = sql.execute(r"""select `subject id`, `faculty id` from
class_subject_faculty csf where `class id` = %(cid)s""", {'cid': classId})
if rows == None:
return
data = []
for sid, fid in rows:
data.append({'sub' :f'{sid}', 'fac': f'{fid}'})
return data
def getAssignmentDetailsWithNames(classId):
rows = sql.execute(r"""select s.`subject id`,s.`subject name`, f.`faculty id`
, f.`name` from class_subject_faculty csf, faculty f, subject s
where `class id` = %(cid)s and csf.`subject id` = s.`subject id`
and f.`faculty id` = csf.`faculty id`""", {'cid': classId})
if rows == None:
return
data = []
for sid, sname, fid, fname in rows:
data.append({'sub' :f'{sname} ({sid})', 'fac': f'{fname} ({fid})'})
return data
def getSubjects():
rows = sql.execute(r"""select `subject id`, `subject name` from subject""")
if rows == None:
return
data = []
for sid, sname in rows:
data.append({'id' :sid, 'name': sname})
return data
@app.route('/list_faculties')
@login_required
def list_faculties():
sid = request.args.get('sid')
sp_view_access = ['admin']
update_access = ['admin']
if not sid:
query = "SELECT `faculty id`,`name`,`email` from faculty"
rows = sql.execute(query)
faculties = []
create_url = None
if session['role'] == 'admin':
create_url = '/register?type=faculty'
for i, row in enumerate(rows):
faculties.append({"id": row[0], "name": row[1], "email": row[2].lower(), "sno": i + 1})
return render_template('list_data.html', data=faculties,title="List of Faculties",
fields=[('sno', False), ('id', True), ('name', True), ('email', True)],
access_group=sp_view_access, view_access=sp_view_access,
update_access=update_access, view_url='/list_faculties',
update_url='/list_faculties', create_url=create_url)
else:
if session['role'] not in sp_view_access and session['user_id'] != sid:
flash('Access Denied', 'danger')
return redirect(get_referer())
query = "select * from faculty where `faculty id`=%(sid)s"
data = sql.execute(query,{"sid":sid})
if data == None:
flash('SOMETHING WENT WRONG', 'danger')
return redirect(get_referer())
elif len(data) != 1:
flash('INVALID FACULTY ID', 'danger')
return redirect(get_referer())
faculty = {}
values = data[0]
faculty['id'] = values[0]
faculty['name'] = values[1]
faculty['email'] = values[2]
faculty['username'] = values[3]
address = values[4].split("@")
for _ in range(5 - len(address)):
address.append('')
faculty['paddress'] = {'address': address[0], 'city': address[1],
'state': address[2], 'country': address[3], 'pin': address[4],
'fulladdress': f"{address[0]}\n{address[1]}\n{address[2]}\n{address[3]}\n{address[4]}\n"}
address = values[5].split("@")
for _ in range(5 - len(address)):
address.append('')
faculty['caddress'] = {'address': address[0], 'city': address[1],
'state': address[2], 'country': address[3], 'pin': address[4],
'fulladdress': f"{address[0]}\n{address[1]}\n{address[2]}\n{address[3]}\n{address[4]}\n"}
faculty['dob'] = values[6]
faculty['dor'] = values[7]
faculty['mobile'] = values[8]
faculty['gender'] = values[9]
faculty['bgrp'] = values[10]
faculty['experience'] = values[11]
faculty['speciality'] = values[12]
qualifications = []
query = "select degree,year,institute,percentage from `qualification` where `faculty id`=%(sid)s"
data = sql.execute(query,{"sid":sid})
if data == None:
flash('something went wrong', 'danger')
return redirect(get_referer())
for i, r in enumerate(data):
qualifications.append([i+1, r[0], r[1], r[2], r[3]])
faculty['qualifications'] = qualifications
mode = request.args.get('mode', 'view')
if mode == 'update':
if session['role'] not in update_access and session['user_id'] != sid:
flash('Access Denied', 'danger')
return redirect(get_referer())
if session['user_id'] not in database_requests:
database_requests[session['user_id']] = {}
elif len(database_requests[session['user_id']]) > 0:
for req in database_requests[session['user_id']].copy():
del database_requests[session['user_id']][req]
req_id = str(uuid.uuid4())
req = [req_id, session['user_id'], 'update', 'faculty', faculty['id'], datetime.datetime.now()]
database_requests[session['user_id']][req_id] = req
return render_template("faculty_details.html",faculty=faculty, mode=mode, req_id=req_id)
else:
return render_template("faculty_details.html",faculty=faculty, mode=mode)
return apology('something went wrong',400)
@app.route('/list_students')
@login_required
def list_students():
sid = request.args.get('sid')
sp_view_access = ['faculty', 'admin']
update_access = ['admin']
if not sid:
query = "SELECT `registration id`,`student name`,`name` from student s, class c where s.class = c.id"
rows = sql.execute(query)
if rows == None:
return apology('SOMETHING WENT WRONG', 500, get_referer())
students = []
for i, row in enumerate(rows):
students.append({"sno": i + 1, "id": row[0], "name": row[1], "class": row[2]})
create_url = None
if session['role'] == 'admin':
create_url = '/register?type=student'
return render_template('list_data.html', data=students,title="List of Students",
fields=[('sno', False), ('id', True), ('name', True), ('class', True)],
access_group=sp_view_access, view_access=sp_view_access,
update_access=update_access, view_url='/list_students',
update_url='/list_students', create_url=create_url)
else:
if session['role'] not in sp_view_access and session['user_id'] != sid:
flash('Access Denied', 'danger')
return redirect(get_referer())
query = "select * from student where `registration id`=%(sid)s"
data = sql.execute(query,{"sid":sid})
if data == None:
flash('SOMETHING WENT WRONG', 'danger')
return redirect(get_referer())
elif len(data) != 1:
flash('INVALID STUDENT ID', 'danger')
return redirect(get_referer())
student = {}
values = data[0]
student['id'] = values[0]
student['name'] = values[1]
student['email'] = values[2]
student['username'] = values[3]
student['mobile'] = values[4]
student['class'] = values[5]
address = values[6].split("@")
student['paddress'] = {'address': address[0], 'city': address[1],
'state': address[2], 'country': address[3], 'pin': address[4],
'fulladdress': f"{address[0]}\n{address[1]}\n{address[2]}\n{address[3]}\n{address[4]}\n"}
address = values[7].split("@")
student['caddress'] = {'address': address[0], 'city': address[1],
'state': address[2], 'country': address[3], 'pin': address[4],
'fulladdress': f"{address[0]}\n{address[1]}\n{address[2]}\n{address[3]}\n{address[4]}\n"}
student['rollno'] = values[8]
student['dob'] = values[9]
student['dor'] = values[10]
student['gender'] = values[11]
student['bgrp'] = values[12]
pid = values[13]
query = "select * from `parent details` where `parent id`=%(pid)s"
data = sql.execute(query,{"pid":pid})
if data == None:
flash('SOMETHING WENT WRONG','danger')
return get_referer()
elif len(data) != 1:
student['pdetails'] = False
else:
values = data[0]
student['pdetails'] = True
student['fname'] = values[1]
student['femail'] = values[2]
student['fmobile'] = values[3]
student['fdob'] = values[4]
student['mname'] = values[5]
student['memail'] = values[6]
student['mmobile'] = values[7]
student['mdob'] = values[8]
mode = request.args.get('mode', 'view')
if mode == 'update':
if session['role'] not in update_access:
flash('access denied', 'danger')
return redirect(get_referer())
if session['user_id'] not in database_requests:
database_requests[session['user_id']] = {}
elif len(database_requests[session['user_id']]) > 0:
for req in database_requests[session['user_id']].copy():
del database_requests[session['user_id']][req]
req_id = str(uuid.uuid4())
req = [req_id, session['user_id'], 'update', 'student', student['id'], datetime.datetime.now()]
database_requests[session['user_id']][req_id] = req
return render_template("studentDetails.html",student=student, mode='update', req_id=req_id)
return render_template("studentDetails.html", student=student, mode="view")
flash('something went wrong')
return redirect(get_referer())
@app.route('/list_subjects')
@login_required
def list_subjects():
sid = request.args.get('sid')
sp_view_access = ['faculty', 'student', 'admin']
update_access = ['admin']
if not sid:
query = "SELECT `subject id`,`subject name`,`credits` from subject"
rows = sql.execute(query)
subjects = []
create_url = None
if session['role'] == 'admin':
create_url = '/create_subject'
for i, row in enumerate(rows):
subjects.append({"id": row[0], "name": row[1], "credits": row[2], "sno": i + 1})
return render_template("list_data.html", data=subjects,title="List of Subjects",
fields=[('sno', False), ('id',True),('name', True), ('credits', False)],
access_group=['faculty', 'student', 'admin'],
view_access=sp_view_access, update_access=update_access,
view_url='/list_subjects', create_url=create_url)
else:
if session['role'] not in sp_view_access and session['user_id'] != sid:
flash('Access Denied', 'danger')
return redirect(get_referer())
query = "select * from subject where `subject id`=%(sid)s"
data = sql.execute(query,{"sid":sid})
if data == None:
flash('SOMETHING WENT WRONG', 'danger')
return redirect(get_referer())
elif len(data) != 1:
flash('INVALID SUBJECT ID', 'danger')
return redirect(get_referer())
subject = {}
values = data[0]
subject['id'] = values[0]
subject['name'] = values[1]
subject['rlects'] = values[2]
subject['tlects'] = values[3]
subject['credits'] = values[4]
subject['syll'] = values[5]
subject['eval_cret'] = values[6]
mode = request.args.get('mode', 'view')
if mode == 'update':
if session['role'] not in update_access and session['user_id'] != sid:
flash('Access Denied', 'danger')
return redirect(get_referer())
if session['user_id'] not in database_requests:
database_requests[session['user_id']] = {}
elif len(database_requests[session['user_id']]) > 0:
for req in database_requests[session['user_id']].copy():
del database_requests[session['user_id']][req]
req_id = str(uuid.uuid4())
req = [req_id, session['user_id'], 'update', 'subject', subject['id'], datetime.datetime.now()]
database_requests[session['user_id']][req_id] = req
return render_template("subjectDetails.html",subject=subject, mode='update', req_id=req_id)
else:
return render_template("subjectDetails.html",subject=subject, mode=mode)
return apology('something went wrong', 500)
@app.route("/list_rooms")
@login_required
def list_rooms():
update_access = ['admin']
sid = request.args.get('sid')
mode = request.args.get('mode', 'view')
if sid:
if mode != 'update':
flash('Invalid Request')
return redirect(get_referer())
elif session['role'] not in update_access:
flash('Invalid Request')
return redirect(get_referer())
res = sql.execute('select * from room where id=%(rid)s', {'rid': sid})
if len(res) != 1:
flash('Invalid Request', 'danger')
return redirect(get_referer())
data = res[0]
room = {'id': data[0], 'cap': data[1]}
if session['user_id'] not in database_requests:
database_requests[session['user_id']] = {}
elif len(database_requests[session['user_id']]) > 0:
for req in database_requests[session['user_id']].copy():
del database_requests[session['user_id']][req]
req_id = str(uuid.uuid4())
req = [req_id, session['user_id'], 'update', 'room', room['id'], datetime.datetime.now()]
database_requests[session['user_id']][req_id] = req
return render_template("roomDetails.html",room=room, mode='update', req_id=req_id)
else:
query = """SELECT `id`,`sitting capacity`,(select concat(name, ' (', c.id, ')')
from class c where c.`room id` = r.id) from room r"""
rows = sql.execute(query)
rooms = []
create_url = None
if session['role'] == 'admin':
create_url = '/create_room'
for i, row in enumerate(rows):
if not row[2]:
def_class = ''
else:
def_class = row[2]
rooms.append({"id": row[0], "sitting capacity": row[1],
"Default Assigned Class": def_class, "sno": i + 1})
return render_template("list_data.html", data=rooms,title="List of Rooms",
fields=[('sno', False), ('id',True),('sitting capacity', True),
('Default Assigned Class', True)],
access_group=['admin'],
view_access=[], update_access=update_access, update_url="/list_rooms",
create_url=create_url)
@app.route("/list_classes")
@login_required
def list_classes():
update_access = ['admin']
sid = request.args.get('sid')
mode = request.args.get('mode', 'view')
if sid:
if mode != 'update':
flash('Invalid Request')
return redirect(get_referer())
elif session['role'] not in update_access:
flash('Invalid Request')
return redirect(get_referer())
res = sql.execute('select * from class where id=%(id)s', {'id': sid})
if len(res) != 1:
flash('Invalid Request', 'danger')
return redirect(get_referer())
data = res[0]
clas = {'id': data[0], 'name': data[1], 'rid': data[2]}
if session['user_id'] not in database_requests:
database_requests[session['user_id']] = {}
elif len(database_requests[session['user_id']]) > 0:
for req in database_requests[session['user_id']].copy():
del database_requests[session['user_id']][req]
req_id = str(uuid.uuid4())
req = [req_id, session['user_id'], 'update', 'room', clas['id'], datetime.datetime.now()]
database_requests[session['user_id']][req_id] = req
return render_template("classDetails.html",clas=clas, mode='update', req_id=req_id)
else:
query = """SELECT * from class"""
rows = sql.execute(query)
classes = []
create_url = None
if session['role'] == 'admin':
create_url = '/create_class'
for i, row in enumerate(rows):
if not row[2]:
def_room = ''
else:
def_room = row[2]
classes.append({"id": row[0], "name": row[1],
"Default Assigned Room": def_room, "sno": i + 1})
return render_template("list_data.html", data=classes,title="List of Rooms",
fields=[('sno', False), ('id',True),('name', True),
('Default Assigned Room', True)],
access_group=['admin'],
view_access=[], update_access=update_access, update_url="/list_classes",
create_url=create_url)
@app.route("/login", methods=["GET", "POST"])
def login():
"""Log user in"""
# Forget any user_id
session.clear()
# User reached route via POST (as by submitting a form via POST)
if request.method == "POST":
# Ensure username was submitted
if not request.form.get("username"):