100 lines
2.5 KiB
Python
100 lines
2.5 KiB
Python
import sys
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import curses
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from form import FormWindow,BookForm
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import db_layer as db
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class BookIDForm(FormWindow):
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caption = "Enter the book ID"
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blabel = "Check"
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labels = ["Book ID"]
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def _return_values(self):
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if self._confirm_book():
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return self.entries[0].value
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else:
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return False
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def _confirm_book(self):
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self.clear()
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bookid = self.entries[0].value
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book = db.get_book(bookid)
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bf = BookForm(self.w, self.hb, book, width=self.mx-10)
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(y,x) = self.w.getbegyx()
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(r,c) = self.w.getmaxyx()
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self.w.mvwin( y+(self.my-r)//2,x+(self.mx-c)//2)
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bf.caption='Confirm the Book '+str(bookid)
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bf.blabel='Correct'
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result = bf.event_loop()
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bf.clear()
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if result:
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return True
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class UWIDForm(FormWindow):
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caption = "Enter the Patron's username"
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blabel = "Next"
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labels = ["Username"]
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def _return_values(self):
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return self.entries[0].value
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class FinalCheck(FormWindow):
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caption = "Is this information correct?"
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blabel = "Check Out"
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labels = ["Username", "Book ID"]
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def _return_values(self):
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return True
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def checkout_procedure(w, hb, cy, cx, mx):
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"""Procedure to check out a book
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w: ncurses window for the routine
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cy,cx: centre coordinates of the screen
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mx: max width of screen
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"""
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# Get the book ID
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step1 = BookIDForm(w,hb,width=mx-20)
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(r,c)=w.getmaxyx()
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w.mvwin(cy-r//2,cx-c//2)
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book_id = step1.event_loop()
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step1.clear()
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if not(book_id):
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return
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# Get the uwid
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step2 = UWIDForm(w,hb,width=mx-20)
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(r,c)=w.getmaxyx()
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w.mvwin(cy-r//2,cx-c//2)
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username = step2.event_loop()
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step2.clear()
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if not(username):
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return
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# Confirm the result
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step3 = FinalCheck(w,hb,book={"username":username,"book id":book_id}, width=mx-20)
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(r,c)=w.getmaxyx()
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w.mvwin(cy-r//2,cx-c//2)
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correct = step3.event_loop()
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step3.clear()
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if correct:
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db.checkout_book(book_id,username)
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def return_procedure(w, hb, cy, cx, mx):
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"""Procedure to return a book
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w: ncurses window for the routine
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cy,cx: centre coordinates of the screen
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mx: max width of screen
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"""
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# Get the book ID
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step1 = BookIDForm(w,hb,width=mx-20)
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(r,c)=w.getmaxyx()
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w.mvwin(cy-r//2,cx-c//2)
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book_id = step1.event_loop()
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step1.clear()
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if book_id:
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db.return_book(book_id)
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