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app.py
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app.py
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from flask import Flask, json, request
from flask.ext.sqlalchemy import SQLAlchemy
import time
DEBUG = True
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///./agent_pete.db'
db = SQLAlchemy(app)
class Section(db.Model):
term = db.Column(db.String(6), primary_key=True)
crn = db.Column(db.String(6), primary_key=True)
coursename = db.Column(db.Text)
remaining = db.Column(db.Integer)
capacity = db.Column(db.Integer)
last_reported_spawn = db.Column(db.Text)
def __init__(self, term, crn, coursename):
self.term = term
self.crn = crn
self.coursename = coursename
def __repr__(self):
return '<Secion: %r>' % self.dict()
def dict(self):
return {
'term': self.term,
'crn': self.crn,
'coursename': self.coursename,
'remaining': self.remaining,
'capacity': self.capacity,
'last_reported_spawn': self.last_reported_spawn
}
class User(db.Model):
username = db.Column(db.String(32), primary_key=True)
def __init__(self, username):
self.username = username
def __repr__(self):
return '<User: %r>' % self.dict()
def dict(self):
return {
'username': self.username
}
class Request(db.Model):
rid = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(32), db.ForeignKey('user.username'))
term = db.Column(db.String(6), db.ForeignKey('section.term'))
crn = db.Column(db.String(6), db.ForeignKey('section.crn'))
user = db.relationship('User',
backref=db.backref('requests', lazy='dynamic'))
section = db.relationship('Section',
primaryjoin="and_(Section.term==Request.term, Section.crn==Request.crn)",
backref=db.backref('requests', lazy='dynamic'))
def __init__(self, username, term, crn):
self.username = username
self.term = term
self.crn = crn
def __repr__(self):
return '<Request: %r>' % self.dict()
def dict(self):
return {
'rid': self.rid,
'username': self.username,
'term': self.term,
'crn': self.crn
}
def to_dict(lst):
return map(lambda x: x.dict(), lst)
@app.route('/init')
def route_init():
if app.debug == True:
db.drop_all()
db.create_all()
db.session.add(Section('201620', '10646', 'AGR20100'))
db.session.add(Section('201620', '12888', 'CS11000'))
db.session.add(Section('201620', '14429', 'CS11000'))
db.session.add(Section('201620', '12879', 'CS11000'))
db.session.add(Section('201620', '12877', 'CS11000'))
db.session.add(Section('201620', '14428', 'CS11000'))
db.session.add(User('lim8'))
db.session.add(User('choi257'))
db.session.add(Request('lim8', '201620', '10646'))
db.session.add(Request('lim8', '201620', '12888'))
db.session.add(Request('choi257', '201620', '12888'))
db.session.add(Request('choi257', '201620', '14429'))
db.session.commit()
return "Initialized"
@app.route('/sections')
def route_sections():
secs = Section.query.all()
return json.jsonify(sections=to_dict(secs))
@app.route('/requests')
def route_requests():
reqs = []
for r in Request.query.all():
d = { 'term': r.term, 'crn': r.crn }
if d not in reqs:
reqs.append(d)
return json.jsonify(requests=reqs)
@app.route('/user/<username>')
def route_user(username):
u = User.query.filter_by(username=username).first()
reqs = u.requests.all()
return json.jsonify(user=u.dict(), requests=to_dict(reqs))
@app.route('/report', methods=['POST'])
def route_report():
spawn_id = request.form['sid']
term = request.form['term']
crn = request.form['crn']
remaining = request.form['remaining']
capacity = request.form['capacity']
s = Section.query.filter_by(term=term, crn=crn).first()
s.remaining = remaining
s.capacity = capacity
s.last_reported_spawn = spawn_id
db.session.add(s)
db.session.commit()
notis = []
for r in s.requests.all():
d = s.dict()
del d['last_reported_spawn']
notis.append({
'username': r.username,
'sections': [d]
})
return json.jsonify(notifications=notis)
if __name__ == '__main__':
import sys
port = int(sys.argv[1]) if len(sys.argv) == 2 else 8257
app.debug = DEBUG
app.run(host='0.0.0.0', port=port)