Better Code Style

This commit is contained in:
mmk2410 2016-01-23 22:31:16 +01:00
parent 3383ca5a80
commit d6f1748061
2 changed files with 90 additions and 48 deletions

View file

@ -1,6 +1,8 @@
all: all:
install: install:
cp -f scorelib.py scorelib
install scorelib /usr/bin install scorelib /usr/bin
rm scorelib
uninstall: uninstall:
rm /usr/bin/scorelib rm /usr/bin/scorelib

View file

@ -1,18 +1,29 @@
#!/usr/bin/env python3 #!/usr/bin/env python3
"""Scorelib - A score library management programm"""
"""
Scorelib - A score library management programm
Marcel Kapfer (mmk2410)
MIT License
Version 0.1.1
"""
import sqlite3 import sqlite3
import readline import readline
import getpass import getpass
import os import os
user = getpass.getuser() USER = getpass.getuser()
dbdir = "/home/" + user + "/.scorelib/" CONFIG = "/home/" + USER + "/.scorelib/"
dbpath = dbdir + "scorelib.db" DBPATH = CONFIG + "scorelib.db"
class Piece: class Piece:
""" A class for working with scores """ """ A class for working with scores """
def __init__(self, piece): def __init__(self, piece=None):
if piece is None:
raise NameError("No piece list given")
if piece['id'] is None:
raise NameError("No piece id given")
self.pieceid = piece['id'] self.pieceid = piece['id']
self.name = piece['name'] self.name = piece['name']
self.composer = piece['composer'] self.composer = piece['composer']
@ -42,7 +53,7 @@ Book: {}
""" """
con = None con = None
try: try:
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
cur = con.cursor() cur = con.cursor()
sqlcmd = "DELETE FROM Scores WHERE id = " + str(self.pieceid) sqlcmd = "DELETE FROM Scores WHERE id = " + str(self.pieceid)
cur.execute(sqlcmd) cur.execute(sqlcmd)
@ -65,7 +76,7 @@ Book: {}
self.key = rlinput("Key: ", self.key) self.key = rlinput("Key: ", self.key)
self.book = rlinput("Book: ", self.book) self.book = rlinput("Book: ", self.book)
# Pushing changes to the database # Pushing changes to the database
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
print(self.get_list) print(self.get_list)
with con: with con:
cur = con.cursor() cur = con.cursor()
@ -89,12 +100,12 @@ def initialize():
print("Initializing the database...") print("Initializing the database...")
os.mkdir(dbdir, 0o755) os.mkdir(CONFIG, 0o755)
con = None con = None
try: try:
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
cur = con.cursor() cur = con.cursor()
@ -116,6 +127,8 @@ def initialize():
if con: if con:
con.close() con.close()
return 0
def destroy(): def destroy():
""" """
Destroys the table. Destroys the table.
@ -125,7 +138,7 @@ def destroy():
con = None con = None
try: try:
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
cur = con.cursor() cur = con.cursor()
@ -139,6 +152,8 @@ def destroy():
if con: if con:
con.close() con.close()
return 0
def add(): def add():
""" Add a entry to the database """ """ Add a entry to the database """
while True: while True:
@ -153,14 +168,18 @@ def add():
piece['key'] = input("Key: ") piece['key'] = input("Key: ")
piece['book'] = input("Book: ") piece['book'] = input("Book: ")
newPiece = Piece(piece) try:
new_piece = Piece(piece)
except NameError as err:
print("Error: %s" % err.args[0])
return -1
newPiece.print_piece() new_piece.print_piece()
con = None con = None
try: try:
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
cur = con.cursor() cur = con.cursor()
@ -183,6 +202,8 @@ def add():
if con: if con:
con.close() con.close()
return 0
def list_scores(): def list_scores():
""" """
List all available scores List all available scores
@ -192,7 +213,7 @@ def list_scores():
try: try:
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
cur = con.cursor() cur = con.cursor()
@ -204,7 +225,7 @@ def list_scores():
row = cur.fetchone() row = cur.fetchone()
if row == None: if row is None:
break break
print( print(
@ -221,35 +242,41 @@ Book: {}
except sqlite3.Error as err: except sqlite3.Error as err:
print("Error: %s" % err.args[0]) print("Error: %s" % err.args[0])
return 1
finally: finally:
if con: if con:
con.close() con.close()
return 0
def edit(): def edit_get_id():
""" """ Get the piece id from the user"""
Function for editing the pieces
"""
pieceid = None pieceid = None
# Ask piece id from user
while True: while True:
pieceid = input("Enter the piece number: ") pieceid = input("Enter the piece number: ")
if pieceid == 'quit': if pieceid == 'quit':
return 0 return 0
elif pieceid and pieceid.isdigit(): elif pieceid and pieceid.isdigit():
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
piecerow = None piecerow = None
with con: with con:
cur = con.cursor() cur = con.cursor()
cur.execute("SELECT * FROM Scores WHERE Id=" + str(pieceid)) cur.execute("SELECT * FROM Scores WHERE Id=" + str(pieceid))
piecerow = cur.fetchone() piecerow = cur.fetchone()
if piecerow == None: if piecerow is None:
print("No Piece with this number available.") print("No Piece with this number available.")
else: else:
break break
else: else:
print("Input must be a number!") print("Input must be a valid number!")
return piecerow
def edit():
"""Function for editing the pieces"""
# Ask piece id from user
piecerow = edit_get_id()
# Getting the piece information # Getting the piece information
piecedata = {"id": piecerow[0], "name": piecerow[1], "composer": piecerow[2],\ piecedata = {"id": piecerow[0], "name": piecerow[1], "composer": piecerow[2],\
@ -262,7 +289,7 @@ def edit():
while True: while True:
edtcmd = input(" (edit) > ") edtcmd = input(" (edit) > ")
if edtcmd in ['help', '?', 'usage']: if edtcmd in ['help', '?', 'usage']:
helpedittext(False) helpedittext()
elif edtcmd in ['done', 'q']: elif edtcmd in ['done', 'q']:
return 0 return 0
elif edtcmd in ['print', 'p']: elif edtcmd in ['print', 'p']:
@ -278,24 +305,24 @@ def edit():
def search(): def search():
""" Search through the database """ """ Search through the database """
term = input("Search for: ") term = input("Search for: ")
con = sqlite3.connect(dbpath) con = sqlite3.connect(DBPATH)
with con: with con:
cur = con.cursor() cur = con.cursor()
cur.execute("SELECT * FROM Scores") cur.execute("SELECT * FROM Scores")
rows = cur.fetchall() rows = cur.fetchall()
for x in range(1,6): for item in range(1, 6):
if x == 1: if item == 1:
print("By name\n") print("By name\n")
elif x == 2: elif item == 2:
print("By Composer\n") print("By Composer\n")
elif x == 3: elif item == 3:
print("By Opus\n") print("By Opus\n")
elif x == 4: elif item == 4:
print("By Key\n") print("By Key\n")
elif x == 5: elif item == 5:
print("By Book\n") print("By Book\n")
for row in rows: for row in rows:
if term in row[x]: if term in row[item]:
piecedata = {"id": row[0], "name": row[1], "composer": row[2],\ piecedata = {"id": row[0], "name": row[1], "composer": row[2],\
"opus": row[3], "key": row[4], "book": row[5]} "opus": row[3], "key": row[4], "book": row[5]}
piece = Piece(piecedata) piece = Piece(piecedata)
@ -303,8 +330,7 @@ def search():
piece.print_piece() piece.print_piece()
def helpedittext(doneshit=False):
def helpedittext(doneshit):
""" print the edit help text """ """ print the edit help text """
if doneshit: if doneshit:
print("The entered command ist not available.") print("The entered command ist not available.")
@ -320,13 +346,13 @@ edit, change, c, e Change the values of the item
""" """
) )
def helptext(doneshit): def helptext(doneshit=False):
""" print the help text """ """ print the help text """
if doneshit: if doneshit:
print("The entered command is not available.") print("The entered command is not available.")
print( print(
""" """
Scorelib v0.1.0 Scorelib v0.1.1
A program for managing your music score collection A program for managing your music score collection
Author: Author:
@ -349,31 +375,42 @@ quit, exit, x, q close Scorelib
""" """
) )
print(
""" def main():
""" Main """
print(
"""
Welcome to Scorelib - A program for managing your music score collection Welcome to Scorelib - A program for managing your music score collection
If you use this program the first time you have to initialize the database \ If you use this program the first time you have to initialize the database \
before you can use it. before you can use it.
Type 'help' to see a list of commands Type 'help' to see a list of commands
""" """
) )
while True: while True:
cmd = input(" > ") cmd = input(" > ")
if cmd in ['usage', 'help', '?']: if cmd in ['usage', 'help', '?']:
helptext(False) helptext()
elif cmd in ['quit', 'exit', 'x', 'q']: elif cmd in ['quit', 'exit', 'x', 'q']:
print("Good Bye!") print("Good Bye!")
exit(0) exit(0)
elif cmd == 'init': elif cmd == 'init':
initialize() status = initialize()
if status == 1:
print("A database error occurred. Please try again.")
elif cmd == 'kill': elif cmd == 'kill':
destroy() status = destroy()
if status == 1:
print("A database error occurred. Please try again.")
elif cmd in ['add', 'new', 'a']: elif cmd in ['add', 'new', 'a']:
add() status = add()
if status == 1:
print("A database error occurred. Please try again.")
elif status == -1:
print("An input you made was not accepted.")
elif cmd in ['list', 'l']: elif cmd in ['list', 'l']:
list_scores() list_scores()
elif cmd in ['edit', 'e']: elif cmd in ['edit', 'e']:
@ -382,3 +419,6 @@ while True:
search() search()
else: else:
helptext(True) helptext(True)
if __name__ == "__main__":
main()