server.py

import tornado.auth
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.database
import tornado.web
import os.path


from tornado.options import define, options

define("port", default=8889, help="run on the given port", type=int)
define("mysql_host", default="127.0.0.1:3306", help="default mysql host")
define("mysql_database", default="ss12", help="default mysql database")
define("mysql_user", default="ss12", help="default mysql user")
define("mysql_password", default="ss12", help="default mysql password")

class HomeHandler(tornado.web.RequestHandler):
    def get(self):
        self.render("home.html")

class MathParser(tornado.web.RequestHandler):

    def parseMathXL(self, inString):

        outString = ""
        previous = False
        i = 0
        while(i < len(inString)):


            if inString[i] == '-':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'minus '

            elif inString[i] == '*':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'times '


            elif inString[i] == '+':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'plus '

            elif inString[i] == '/':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'divided by '


            elif inString[i] == '(':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'open parentheses '

            elif inString[i] == ')':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'close parentheses '

            elif inString[i] == '^':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'to the power of '

            elif inString[i] == 's' and inString[i+1] == 'q' and inString[i+2] == 'r' and inString[i+3] == 't':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'the square root of '
                i += 3

            elif inString[i] == 'p' and inString[i+1] == 'i':
                if not previous:
                    outString += " "
                previous = True
                outString += 'pi '
                i+=1

            elif inString[i] == 's' and inString[i+1] == 'i' and inString[i+2] == 'n':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'sine '
                i += 2

            elif inString[i] == 'c' and inString[i+1] == 'o' and inString[i+2] == 's':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'cosine '
                i += 2

            elif inString[i] == 't' and inString[i+1] == 'a' and inString[i+2] == 'n':
                if not previous:
                    outString += " "
                previous = True
                outString +=  'tanget '
                i += 2

            else:
                outString +=  inString[i]
                previous = False

            i+=1

        return outString

    def get(self):
        text = self.get_argument("text")
        self.write(self.parseMathXL(text))  

class BaseHandler(tornado.web.RequestHandler):
    @property
    def db(self):
        return self.application.db

class DecksListHandler(BaseHandler):
    def get(self):
        entries = self.db.query("SELECT * FROM DECK")
        self.render("deckslist.html", entries=entries)

class CardsInDeckListHandler(BaseHandler):
    def get(self):
        deckid = self.get_argument("deckid")
        entries = self.db.query("SELECT * FROM CARDS WHERE DECKID=%s", deckid)
        self.render("cardsindecklist.html", entries=entries, deckid=deckid)
    def post(self):
        deckid = self.get_argument("deckid")
        self.redirect("newcard?deckid="+deckid)



class CardHandler(BaseHandler):
    def get(self):
        deckid = self.get_argument("deckid")
        cardid = self.get_argument("cardid")
        cardindex = 0
        entries = self.db.query("SELECT * FROM CARDS WHERE DECKID=%s", deckid)
        for i in range(0,len(entries)):
            if str(entries[i].ID) == str(cardid):
                cardindex = i
        self.render("card.html", entries=entries, cardid=cardid, cardindex=cardindex,deckid=deckid)
    def post(self):
        print "test"
        action = self.get_argument("action")
        cardindex = int(self.get_argument("cardindex"))
        deckid = self.get_argument("deckid")
        print str(deckid)
        entries = self.db.query("SELECT * FROM CARDS WHERE DECKID=%s", deckid)
        print str(len(entries))
        if str(action) == "previous":
            self.redirect("card?deckid="+str(deckid)+"&cardid="+str(entries[cardindex-1].ID))
        else:
            self.redirect("card?deckid="+str(deckid)+"&cardid="+str(entries[cardindex+1].ID))

class NewDeckHandler(BaseHandler):
    def get(self):
        self.render("newdeck.html")
    def post(self):
        name = self.get_argument("name", None)
        if name:
            entry = self.db.get("SELECT * FROM DECK WHERE name = %s", str(name))
            if entry: raise tornado.web.HTTPError(404) #duplicate
        self.db.execute("INSERT INTO DECK (userid,name) VALUES (%s,%s)",1, name)
        entries = self.db.query("SELECT * FROM DECK WHERE name=%s",name)
        self.redirect("newcard?deckid="+str(entries[0].ID))



class CardHandlerNew(BaseHandler):
    def get(self):
        deckid = self.get_argument("deckid", None)
        self.render("newcard.html",deckid=deckid)
    def post(self):
        question = self.get_argument("cardquestion", None)
        answer = self.get_argument("cardanswer", None)
        deckid = self.get_argument("deckid", None)
        print "%s %s %s", question, answer, deckid
        if question:
            entry = self.db.get("SELECT * FROM CARDS WHERE QUESTION = %s", str(question))
        if entry: raise tornado.web.HTTPError(404) #duplicate<input type="hidden" value="{{deckid.value}}" name="deckid" id="deckid" />

        self.db.execute(
                "INSERT INTO CARDS (DECKID,QUESTION,ANSWER) VALUES (%s,%s,%s)",
                deckid, question, answer)
        self.redirect("cardsindecklist?deckid="+deckid)

class ModifyCardHandler(BaseHandler):
    def get(self):
        deckid = self.get_argument("deckid", None)
        cardid = self.get_argument("cardid", None)
        entries = self.db.query("SELECT * FROM CARDS WHERE ID=%s",cardid)
        print len(entries)
        entry = entries[0]
        self.render("modcard.html", entry=entry)

    def post(self):
        deckid = self.get_argument("deckid", None)
        cardid = self.get_argument("cardid", None)
        question = self.get_argument("cardquestion", None)
        answer = self.get_argument("cardanswer", None)
        self.db.execute("UPDATE CARDS SET QUESTION=%s, ANSWER=%s WHERE ID=%s", question, answer, cardid)
        self.redirect("cardsindecklist?deckid="+deckid)


class DeleteDeckHandler(BaseHandler):
    def get(self):
        deckid = self.get_argument("deckid")
        self.db.execute("DELETE FROM CARDS WHERE DECKID=%s", deckid)
        self.db.execute("DELETE FROM DECK WHERE ID=%s", deckid)
        self.redirect("deckslist")

class DeleteCardHandler(BaseHandler):
    def get(self):
        cardid = self.get_argument("cardid")
        deckid = self.get_argument("deckid")
        self.db.execute("DELETE FROM CARDS WHERE ID=%s",cardid)
        self.redirect("/cardsindecklist?deckid="+deckid)

class ConfirmDeleteHandler(BaseHandler):
    def get(self):
        deckid = self.get_argument("deckid", None)
        cardid = self.get_argument("cardid", None)
        self.render("confirmdelete.html", cardid=cardid, deckid=deckid)
    def post(self):
        deckid = self.get_argument("deckid", None)
        cardid = self.get_argument("cardid", None)
        result = self.get_argument("result", None)
        print cardid
        print deckid
        if result == "confirm":
            if str(cardid) == "None":
                self.redirect("deldeck?deckid="+deckid)
            else:
                self.redirect("delcard?deckid="+str(deckid)+"&cardid="+str(cardid))
        else:
            if str(cardid) == "None":
                self.redirect("deckslist")
            else:
                self.redirect("cardsindecklist?deckid="+deckid)



class ViewDeckHandler(tornado.web.RequestHandler):
    def get(self):
        self.render("viewdeck.html")

class NewCardHandler(tornado.web.RequestHandler):
    def get(self):
        self.render("newcard.html")

class ViewCardHandler(tornado.web.RequestHandler):
    def get(self):
        self.render("viewcard.html")

class MathHandler(tornado.web.RequestHandler):
    def get(self):
        self.render("math.html")


class Application(tornado.web.Application):
    def __init__(self):
        handlers = [
                (r"/", HomeHandler),
                (r"/card", CardHandler),
                (r"/newdeck", NewDeckHandler),
                (r"/viewdeck", ViewDeckHandler),
                (r"/newcard", CardHandlerNew),
                (r"/deldeck", DeleteDeckHandler),
                (r"/confirmdelete", ConfirmDeleteHandler),
                (r"/delcard", DeleteCardHandler),
                (r"/modcard", ModifyCardHandler),
                (r"/cardsindecklist", CardsInDeckListHandler),
                (r"/viewcard", ViewCardHandler),
                (r"/deckslist", DecksListHandler),
                (r"/math", MathHandler),
                (r"/mathparse", MathParser)]


        settings = dict(
                template_path=os.path.join(os.path.dirname(__file__), "templates"),
                debug=True, static_path=os.path.join(os.path.dirname(__file__), "css"),
                )
        tornado.web.Application.__init__(self, handlers, **settings)

        self.db = tornado.database.Connection(
                host=options.mysql_host, database=options.mysql_database,
                user=options.mysql_user, password=options.mysql_password)

def main():
    tornado.options.parse_command_line()
    http_server = tornado.httpserver.HTTPServer(Application())
    http_server.listen(options.port)
    tornado.ioloop.IOLoop.instance().start()


if __name__ == "__main__":
    main()