268 lines
9.5 KiB
Python
268 lines
9.5 KiB
Python
import sqlite3
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class Session:
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def __init__(self, db_agent):
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self.user = -1
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self.db_agent = db_agent
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self.resultstring = 'no results yet'
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def set_user(self, db_index):
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self.user = db_index
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return 'User set'
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def get_active_user(self):
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sql_command = f'''
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SELECT first_name, sec_name
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FROM pianist
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WHERE id = {self.user}
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'''
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active_user = ''
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try:
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first_name, name = self.db_agent.execute(sql_command).fetchone()
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active_user = f'{first_name} {name}'
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except:
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active_user = 'No active user'
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return active_user
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def invoke_command(self, command, arguments):
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self.resultstring = ''
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if command == 'a':
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self.resultstring += self.set_user(arguments[0])
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elif command == 'c':
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self.resultstring += self.show_composers()
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elif command == 'm':
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self.resultstring += self.mark_work_as_mastered(arguments)
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elif command == 'n':
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self.create_new_user(arguments[0], arguments[1])
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self.resultstring += f'Created new user {arguments[0]} {arguments[1]}.'
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elif command == 's':
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self.resultstring += self.show_works()
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elif command == 'sc':
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self.resultstring += self.show_works(restraint=f'comp_id = {arguments[0]}')
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elif command == 'sp':
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self.resultstring += self.show_movements(arguments[0])
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elif command == 'su':
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self.resultstring += self.show_users()
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elif command == 'q':
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self.resultstring += 'Bye-bye'
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else:
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self.resultstring += 'Could not understand command.'
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def result(self):
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return self.resultstring
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def create_new_user(self, first_name, name):
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sql_command = f'''
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INSERT INTO pianist (first_name, sec_name)
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VALUES ("{first_name}", "{name}");
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'''
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self.db_agent.execute(sql_command)
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def show_composers(self):
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sql_command = '''
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SELECT id, first_name, name
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FROM composer
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ORDER BY name
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'''
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result_list = self.db_agent.execute(sql_command).fetchall()
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fun_resultstring = ''
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for item in result_list:
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fun_resultstring += f'{item[0]}: {item[2]}, {item[1]}\n'
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return fun_resultstring
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def show_movements(self, work_id):
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work = work_under_id(work_id, self.db_agent)
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fun_resultstring = ''
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for mov_number in work.values['movements'].keys():
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fun_resultstring += f'{mov_number}. {work.pretty_mov(mov_number)}\n'
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return fun_resultstring
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def show_users(self):
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sql_command = '''
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SELECT * FROM pianist;
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'''
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result_list = self.db_agent.execute(sql_command).fetchall()
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fun_resultstring = ''
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for item in result_list:
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fun_resultstring += f'{item[0]}: {item[1]} {item[2]}\n'
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return fun_resultstring
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def show_works(self, restraint='1=1'):
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sql_command = f'''
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SELECT id
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FROM work
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WHERE {restraint}
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'''
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list_of_work_ids = self.db_agent.execute(sql_command).fetchall()
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# GET WORKS OUT!
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list_of_works = list()
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for item in list_of_work_ids:
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list_of_works.append(work_under_id(item[0], self.db_agent))
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fun_resultstring = ''
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for work in list_of_works:
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fun_resultstring += f'{work.id()}: {work.pretty_string()}\n'
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return fun_resultstring
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def mark_work_as_mastered(self, arguments):
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work_id = arguments[0]
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resultstring = 'adding:\n'
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work = work_under_id(work_id, self.db_agent)
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if len(arguments) > 1:
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mov_number = int(arguments[1])
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sql_command = f'''
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INSERT INTO is_able_to_play (work_id, mov_id, pianist_id)
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VALUES ({work_id}, {mov_number}, {self.user})
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'''
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self.db_agent.execute(sql_command)
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resultstring += f'{work.pretty_mov(mov_number)}\n'
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else:
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for mov_number in work.values['movements'].keys():
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sql_command = f'''
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INSERT INTO is_able_to_play (work_id, mov_id, pianist_id)
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VALUES ({work_id}, {mov_number}, {self.user})
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'''
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self.db_agent.execute(sql_command)
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resultstring += f'{work.pretty_mov(mov_number)}\n'
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return resultstring
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# End session
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class work_under_id:
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# con = sqlite3.connect('repertoire.db')
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# reader = con.cursor()
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def __init__(self, werk_id, db_agent):
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self.values = dict()
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self.reader = db_agent
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sql_wui = f"""
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SELECT *
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FROM work
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WHERE id = {werk_id}
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"""
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werk_list_val = self.reader.execute(sql_wui).fetchone()
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werk_list_att = ('id', 'comp_id', 'year', 'opus', 'collection', 'main_key', 'title', 'mov_title', 'alias', 'work_directory', 'wd_number')
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for tup in zip(werk_list_att, werk_list_val):
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self.values[tup[0]] = tup[1]
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sql_comp = f"""
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SELECT first_name, name
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FROM composer
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WHERE id = {self.values['comp_id']}
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"""
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werk_comp = self.reader.execute(sql_comp).fetchone()
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self.values['first_name'] = werk_comp[0]
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self.values['name'] = werk_comp[1]
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sql_suw = f"""
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SELECT *
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FROM movement
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WHERE work_id = {werk_id}
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"""
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saetze = dict()
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nummern = set()
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suw_liste = self.reader.execute(sql_suw).fetchall()
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# 0 work_id, 1 mov_number, 2 numb, 3 designation, 4 mus_key, 5 recording
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for satz in suw_liste:
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saetze[satz[1]] = satz[2], satz[3], satz[4]
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if not satz[2] is None:
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nummern.add(satz[2])
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self.values['movements'] = saetze
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if len(nummern) == 1:
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self.sätze_unter_nummer = True
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self.values['numb'] = nummern.pop()
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else:
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self.sätze_unter_nummer = False
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def sammlung(self):
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sammlung = self.values['collection']
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if not sammlung:
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return 'ohne'
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else:
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return sammlung
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def id(self):
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return self.values['id']
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def pretty_string(self):
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ret_str = ''
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for key in ['first_name', 'name',
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'title', 'opus',
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'main_key', 'alias',
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'work_directory','wd_number']:
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if not self.values[key] is None:
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if key == 'opus':
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ret_str += f'op. {self.values[key]} '
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else:
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ret_str += f'{self.values[key]} '
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return ret_str
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def pretty_mov(self, mov_number):
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ret_str = ''
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for key in ['first_name', 'name',
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'title', 'mov_title', 'opus', 'numb',
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'main_key', 'alias',
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'movements',
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'work_directory','wd_number']:
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if key in self.values.keys() and not self.values[key] is None:
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if key == 'opus':
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ret_str += f'op. {self.values[key]} '
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elif key == 'name':
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ret_str += f'{self.values[key]}, '
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elif key == 'numb':
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ret_str += f'Nr. {self.values[key]} '
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elif key == 'movements':
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if self.values[key][mov_number][1] is None:
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ret_str += ''
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else:
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if len(self.values[key]) > 1:
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ret_str += f'{mov_number}. {self.values[key][mov_number][1]} '
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else:
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ret_str += f'{self.values[key][mov_number][1]} '
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elif key == 'title':
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if self.values['mov_title'] is None:
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ret_str += f'{self.values[key]} '
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else:
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ret_str += f'{self.values[key]} '
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return ret_str
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def __str__(self):
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ret_str = ''
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for key, value in self.values.items():
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if not value is None:
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ret_str += f'{key}: {value}\n'
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return ret_str
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# End work_under_id
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def parse_user_input(user_in):
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split_user_in = user_in.split()
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command = split_user_in[0]
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if command in ('a', 'c', 'm', 'n', 'q', 's', 'sc', 'sp', 'su'):
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arguments = split_user_in[1:]
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return (command, arguments)
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else:
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return (None, None)
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def command_line_loop(session):
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user_in = ''
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while not user_in == 'q':
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user_in = input(f'Piano-Repertoire: {session.get_active_user()} >>> ')
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command, arguments = parse_user_input(user_in)
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session.invoke_command(command, arguments)
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# print(f'command: {command}, arguments: {arguments}')
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print(session.result())
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def main():
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con = sqlite3.connect('repertoire.db')
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db_agent = con.cursor()
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session = Session(db_agent)
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command_line_loop(session)
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con.commit()
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print('changes committed.')
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con.close()
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print('db-connection closed. Bye-bye!')
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if __name__ == '__main__':
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main() |