I'm currently using mysqlalchemy, kivy, installer and main to take user input from a GUI and store it in an sql database. When trying to add data from my 'adding_data_for people'. This error occurs. I know the error is not in kivy but I bet it has something to do with the installer. Also I just want to store the data, nothing else. Sorry for the long and messy code pieces in advance.
Traceback (most recent call last):
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 1246, in _execute_context
cursor, statement, parameters, context
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/default.py", line 588, in do_execute
cursor.execute(statement, parameters)
File "/usr/lib/python3.6/site-packages/mysql/connector/cursor.py", line 515, in execute
self._handle_result(self._connection.cmd_query(stmt))
File "/usr/lib/python3.6/site-packages/mysql/connector/connection.py", line 488, in cmd_query
result = self._handle_result(self._send_cmd(ServerCmd.QUERY, query))
File "/usr/lib/python3.6/site-packages/mysql/connector/connection.py", line 395, in _handle_result
raise errors.get_exception(packet)
mysql.connector.errors.DatabaseError: 1364 (HY000): Field 'school_id' doesn't have a default value
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/cse/git/soft_161_homework/milestone_1/main.py", line 215, in <module>
app.run()
File "/usr/lib64/python3.6/site-packages/kivy/app.py", line 855, in run
runTouchApp()
File "/usr/lib64/python3.6/site-packages/kivy/base.py", line 504, in runTouchApp
EventLoop.window.mainloop()
File "/usr/lib64/python3.6/site-packages/kivy/core/window/window_sdl2.py", line 747, in mainloop
self._mainloop()
File "/usr/lib64/python3.6/site-packages/kivy/core/window/window_sdl2.py", line 479, in _mainloop
EventLoop.idle()
File "/usr/lib64/python3.6/site-packages/kivy/base.py", line 342, in idle
self.dispatch_input()
File "/usr/lib64/python3.6/site-packages/kivy/base.py", line 327, in dispatch_input
post_dispatch_input(*pop(0))
File "/usr/lib64/python3.6/site-packages/kivy/base.py", line 233, in post_dispatch_input
listener.dispatch('on_motion', etype, me)
File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "/usr/lib64/python3.6/site-packages/kivy/core/window/__init__.py", line 1402, in on_motion
self.dispatch('on_touch_down', me)
File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "/usr/lib64/python3.6/site-packages/kivy/core/window/__init__.py", line 1418, in on_touch_down
if w.dispatch('on_touch_down', touch):
File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "/usr/lib64/python3.6/site-packages/kivy/uix/screenmanager.py", line 1191, in on_touch_down
return super(ScreenManager, self).on_touch_down(touch)
File "/usr/lib64/python3.6/site-packages/kivy/uix/widget.py", line 549, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "/usr/lib64/python3.6/site-packages/kivy/uix/relativelayout.py", line 288, in on_touch_down
ret = super(RelativeLayout, self).on_touch_down(touch)
File "/usr/lib64/python3.6/site-packages/kivy/uix/widget.py", line 549, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
File "/usr/lib64/python3.6/site-packages/kivy/uix/behaviors/button.py", line 151, in on_touch_down
self.dispatch('on_press')
File "kivy/_event.pyx", line 703, in kivy._event.EventDispatcher.dispatch
File "kivy/_event.pyx", line 1214, in kivy._event.EventObservers.dispatch
File "kivy/_event.pyx", line 1098, in kivy._event.EventObservers._dispatch
File "/usr/lib64/python3.6/site-packages/kivy/lang/builder.py", line 64, in custom_callback
exec(__kvlang__.co_value, idmap)
File "/home/cse/git/soft_161_homework/milestone_1/schooltracking.kv", line 525, in <module>
app.adding_data_for_people()
File "/home/cse/git/soft_161_homework/milestone_1/main.py", line 184, in adding_data_for_people
session.commit()
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/session.py", line 1036, in commit
self.transaction.commit()
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/session.py", line 503, in commit
self._prepare_impl()
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/session.py", line 482, in _prepare_impl
self.session.flush()
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/session.py", line 2479, in flush
self._flush(objects)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/session.py", line 2617, in _flush
transaction.rollback(_capture_exception=True)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/langhelpers.py", line 68, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py", line 153, in reraise
raise value
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/session.py", line 2577, in _flush
flush_context.execute()
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/unitofwork.py", line 422, in execute
rec.execute(self)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/unitofwork.py", line 589, in execute
uow,
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/persistence.py", line 245, in save_obj
insert,
File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/persistence.py", line 1137, in _emit_insert_statements
statement, params
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 982, in execute
return meth(self, multiparams, params)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/sql/elements.py", line 293, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 1101, in _execute_clauseelement
distilled_params,
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 1250, in _execute_context
e, statement, parameters, cursor, context
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 1476, in _handle_dbapi_exception
util.raise_from_cause(sqlalchemy_exception, exc_info)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py", line 398, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py", line 152, in reraise
raise value.with_traceback(tb)
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py", line 1246, in _execute_context
cursor, statement, parameters, context
File "/usr/lib64/python3.6/site-packages/sqlalchemy/engine/default.py", line 588, in do_execute
cursor.execute(statement, parameters)
File "/usr/lib/python3.6/site-packages/mysql/connector/cursor.py", line 515, in execute
self._handle_result(self._connection.cmd_query(stmt))
File "/usr/lib/python3.6/site-packages/mysql/connector/connection.py", line 488, in cmd_query
result = self._handle_result(self._send_cmd(ServerCmd.QUERY, query))
File "/usr/lib/python3.6/site-packages/mysql/connector/connection.py", line 395, in _handle_result
raise errors.get_exception(packet)
sqlalchemy.exc.DatabaseError: (mysql.connector.errors.DatabaseError) 1364 (HY000): Field 'school_id' doesn't have a default value
[SQL: INSERT INTO person (home_id, name, grade_level) VALUES (%(home_id)s, %(name)s, %(grade_level)s)]
[parameters: {'home_id': 1, 'name': 'qwd', 'grade_level': 8}]
(Background on this error at: http://sqlalche.me/e/4xp6)
main.py
from kivy.app import App
from kivy.uix.label import Label
from kivy.modules import inspector # For inspection
from kivy.core.window import Window # For inspection
from kivy.uix.button import Button
from kivy.uix.screenmanager import ScreenManager, Screen
from sys import stderr
from sqlalchemy.exc import SQLAlchemyError
from sqlalchemy.exc import ProgrammingError
from schooltracking import SchoolTrackingDatabase, School, Home, Person
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.popup import Popup
from kivy.clock import Clock
from kivy.properties import ObjectProperty
from sqlalchemy.orm import sessionmaker
class SchoolTrackingApp(App):
def build(self):
inspector.create_inspector(Window, self)
def __init__(self, **kwargs):
super(SchoolTrackingApp, self).__init__(**kwargs)
url = SchoolTrackingDatabase.construct_mysql_url('localhost', 3306, 'schooltracking', 'root', 'cse')
self.schooltracking = SchoolTrackingDatabase(url)
self.session = self.schooltracking.create_session()
def database_entries(self):
query = self.session.query(School.names).all()
query2 = self.session.query(School.district).all()
text = self.root.ids.input_screen.text
text2 = self.root.ids.input_screen2.text
list_name = []
for i in query:
list_name.append(i[0])
list_district = []
for i in query2:
list_district.append(i[0])
for names in list_name:
if text == names:
for districts in list_district:
if text2 == districts:
popup = Popup(title='School and District already in database',
content=Label(text=' Sorry, but it looks like that name and \ndistrict are already in our datbase. \nPlease create a new one.'),
size_hint=(None, None), size=(400, 400))
popup.open()
break
def blank_entries(self):
text = self.root.ids.input_screen.text
text2 = self.root.ids.input_screen2.text
text3 = self.root.ids.input_screen3.text
text4 = self.root.ids.input_screen4.text
text5 = self.root.ids.input_screen5.text
text6 = self.root.ids.input_screen6.text
text7 = self.root.ids.input_screen7.text
text8 = self.root.ids.input_screen8.text
text9 = self.root.ids.input_screen9.text
text10 = self.root.ids.input_screen10.text
text11 = self.root.ids.input_screen.text
text12 = self.root.ids.input_screen2.text
text13 = self.root.ids.input_screen3.text
text14 = self.root.ids.input_screen4.text
text15 = self.root.ids.input_screen5.text
text16 = self.root.ids.input_screen5.text
text17 = self.root.ids.input_screen6.text
text18 = self.root.ids.input_screen7.text
text19 = self.root.ids.input_screen8.text
text20 = self.root.ids.input_screen8.text
text21 = self.root.ids.input_screen.text
text22 = self.root.ids.input_screen2.text
text23 = self.root.ids.input_screen3.text
text24 = self.root.ids.input_screen4.text
text25 = self.root.ids.input_screen4.text
if text or text2 or text3 or text4 or text5 or text6 or text7 or text8 or text9 or text10 or text11 or text12 or text13 or text14 or text15 or text16 or text17 or text18 or text19 or text20 or text21 or text22 or text23 or text24 or text25== '':
popup = Popup(title='No input given',
content=Label(text=' The text boxes cannot be left blank!'),
size_hint=(None, None), size=(400, 400))
popup.open()
def NA_entry(self):
text9 = self.root.ids.input_screen9.text
if text9 != 'N/A':
popup = Popup(title='Not N/A',
content=Label(text=' The text box has to be N/A!'),
size_hint=(None, None), size=(400, 400))
popup.open()
def check_no_school_represents_child(self):
query3 = self.session.query(Person.grade_level).all()
query4 = self.session.query(Person.name).all()
text10 = self.root.ids.input_screen10.text
list_grade_levels = []
for i in query3:
list_grade_levels.append(i[0])
list_names = []
for i in query4:
list_names.append(i[0])
for names in list_names:
for grade_level in list_grade_levels:
if grade_level == None:
popup = Popup(title='No school representing child',
content=Label(text=' There is no school representing ' + names + ' in this home'),
size_hint=(None, None), size=(400, 400))
popup.open()
break
def adding_data_for_school(self):
url = SchoolTrackingDatabase.construct_mysql_url('localhost', 3306, 'schooltracking', 'root', 'cse')
schooltracking = SchoolTrackingDatabase(url)
schooltracking.ensure_tables_exist()
session = schooltracking.create_session()
add_data(session)
session.commit()
text = self.root.ids.input_screen.text
text2 = self.root.ids.input_screen2.text
text3 = self.root.ids.input_screen3.text
schools = School(names=text, district=text2, education_level=text3)
session.add(schools)
session.commit()
def adding_data_for_home(self):
url = SchoolTrackingDatabase.construct_mysql_url('localhost', 3306, 'schooltracking', 'root', 'cse')
schooltracking = SchoolTrackingDatabase(url)
schooltracking.ensure_tables_exist()
session = schooltracking.create_session()
add_data(session)
session.commit()
text4 = self.root.ids.input_screen4.text
text20 = self.root.ids.input_screen20.text
text21 = self.root.ids.input_screen21.text
text22 = self.root.ids.input_screen22.text
text23 = self.root.ids.input_screen23.text
text24 = self.root.ids.input_screen24.text
address = Home(school_id=1,first_address=text4, second_address=text20, city=text21, state_or_province=text22, postal_code=68118, country=text24)
session.add(address)
session.commit()
def adding_data_for_people(self):
url = SchoolTrackingDatabase.construct_mysql_url('localhost', 3306, 'schooltracking', 'root', 'cse')
schooltracking = SchoolTrackingDatabase(url)
schooltracking.ensure_tables_exist()
session = schooltracking.create_session()
add_data(session)
session.commit()
text5 = self.root.ids.input_screen5.text
text6 = self.root.ids.input_screen6.text
text7 = self.root.ids.input_screen7.text
text8 = self.root.ids.input_screen8.text
text9 = self.root.ids.input_screen9.text
person = Person(home_id=1, name=text5, grade_level=8)
session.add(person)
session.commit()
def add_data(session):
pass (This will add the data to the database do notneed to worry about this)
def main():
try:
url = SchoolTrackingDatabase.construct_mysql_url('localhost', 3306, 'schooltracking', 'root', 'cse')
schooltracking = SchoolTrackingDatabase(url)
schooltracking.ensure_tables_exist()
print('Tables created.')
session = schooltracking.create_session()
add_data(session)
session.commit()
print('Records created.')
print('Your database has been successfully created!')
except (SQLAlchemyError) as exception:
print('Database setup failed', file=stderr)
print(f'Cause: {exception}', file=stderr)
#if ProgrammingError:
#print('Your credentials are incorrect with those matching to the database.' )
exit(1)
if __name__ == '__main__':
main()
app = SchoolTrackingApp()
app.run()
Installer
from sqlalchemy import create_engine, Column, Integer, String, DateTime, ForeignKfrom
sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker, relationship
Persisted = declarative_base()
class School(Persisted):
__tablename__ = 'schools'
school_id = Column(Integer, primary_key=True)
names = Column(String(256), nullable=False)
district = Column(String(256), nullable=False)
education_level = Column(String(256), nullable=False)
homes = relationship('Home', uselist=True, back_populates='school')
class Home(Persisted):
__tablename__ = 'homes'
home_id = Column(Integer, primary_key=True)
school_id = Column(Integer, ForeignKey('schools.school_id', ondelete='CASCADE'), nullable=False)
first_address = Column(String(256), nullable=False)
second_address = Column(String(256), nullable=True)
city = Column(String(256), nullable=False)
state_or_province = Column(String(256), nullable=False)
postal_code = Column(String(256), nullable=False)
country = Column(String(256), nullable=False)
school = relationship('School', back_populates='homes')
person = relationship('Person', back_populates='homes')
class Person(Persisted):
__tablename__ = 'person'
person_id = Column(Integer, primary_key=True)
home_id = Column(Integer, ForeignKey('homes.home_id', ondelete='CASCADE'), nullable=False)
name = Column(String(256), nullable=False)
grade_level = Column(Integer, nullable=False)
homes = relationship('Home', back_populates='person')
class SchoolTrackingDatabase(object):
#staticmethod
def construct_mysql_url(authority, port, database, username, password):
return f'mysql+mysqlconnector://{username}:{password}#{authority}:{port}/{database}'
#staticmethod
def construct_in_memory_url():
return 'sqlite:///'
def __init__(self, url):
self.engine = create_engine(url) # an engine is like an endpoint, something to connect to
self.Session = sessionmaker() # create a class for connections to that endpoint / pylint:
disable=invalid-name
self.Session.configure(bind=self.engine) # associate the class with the endpoint
def ensure_tables_exist(self):
Persisted.metadata.create_all(self.engine) # create tables for all subclasses of Persisted
def create_session(self):
return self.Session() # create a new session, which is like a connection to the database
If the kivy file is needed please tell me :)
sqlalchemy.exc.DatabaseError: (mysql.connector.errors.DatabaseError) 1364 (HY000): Field 'school_id' doesn't have a default value
[SQL: INSERT INTO person (home_id, name, grade_level) VALUES (%(home_id)s, %(name)s, %(grade_level)s)]
[parameters: {'home_id': 1, 'name': 'qwd', 'grade_level': 8}]
As the error says, you're trying to insert data in to a table without specifying school_id, which doesn't have a default value. You have two options:
When doing an insert, specify school_id.
Set a default value for school_id in the database.
Related
I always get an excessive traceback error, when querying the database finds no result. Why does this query not simply return None?
userExpireDate = session.query(PayingUser.expireDate).filter(PayingUser.mail == mailaddress).first()
This gives this horror error message when the mailaddress can't be found:
Traceback (most recent call last):
File "/Volumes/Mac HD/Benutzer/oliver/PycharmProjects/ErsterTest/Praeprocessor.py", line 274, in <module>
main()
File "/Volumes/Mac HD/Benutzer/oliver/PycharmProjects/ErsterTest/Praeprocessor.py", line 263, in main
userExpireDate = checkUser(mail)
File "/Volumes/Mac HD/Benutzer/oliver/PycharmProjects/ErsterTest/Praeprocessor.py", line 57, in checkUser
userExpireDate = session.query(PayingUser.expireDate).filter(PayingUser.mail == sender).first()
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3240, in first
ret = list(self[0:1])
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3018, in __getitem__
return list(res)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3341, in __iter__
self.session._autoflush()
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 1588, in _autoflush
util.raise_from_cause(e)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 398, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 153, in reraise
raise value
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 1577, in _autoflush
self.flush()
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 2470, in flush
self._flush(objects)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 2608, in _flush
transaction.rollback(_capture_exception=True)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/util/langhelpers.py", line 68, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 153, in reraise
raise value
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 2568, in _flush
flush_context.execute()
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/unitofwork.py", line 422, in execute
rec.execute(self)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/unitofwork.py", line 589, in execute
uow,
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/persistence.py", line 245, in save_obj
insert,
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/orm/persistence.py", line 1137, in _emit_insert_statements
statement, params
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 988, in execute
return meth(self, multiparams, params)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/sql/elements.py", line 287, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1107, in _execute_clauseelement
distilled_params,
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1253, in _execute_context
e, statement, parameters, cursor, context
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1473, in _handle_dbapi_exception
util.raise_from_cause(sqlalchemy_exception, exc_info)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 398, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 152, in reraise
raise value.with_traceback(tb)
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1249, in _execute_context
cursor, statement, parameters, context
File "/Volumes/Mac HD/Benutzer/oliver/ErsterTest/lib/python3.7/site-packages/sqlalchemy/engine/default.py", line 580, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.OperationalError: (raised as a result of Query-invoked autoflush; consider using a session.no_autoflush block if this flush is occurring prematurely)
(sqlite3.OperationalError) no such table: mails
[SQL: INSERT INTO mails (sender, subject, received, answer, text, html, category, count, danger) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)]
[parameters: ('anemailaddress#gmx.at', 'An subject', '2019-10-15 23:59:11.219968', 2, '\r\n\r\n> Anfang der weitergeleiteten Nachricht:\r\n>\r\n> Von: Name <anemailaddress#gmx.at>\r\n> Betreff: An subject (87 characters truncated) ... > Kopie: MrX <anemailaddress#gmx.at>\r\n> Antwort an: MrX <anemailaddress#gmx.at>\r\n>\r\n> Ein weiteres Mail\r\n\r\n', '<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space ... (2865 characters truncated) ... ass=""></span></div><br class=""><div class=""><div class="">Ein weiteres Mail<br class=""></div></div></blockquote></div><br class=""></body></html>', '', 0, 0)]
(Background on this error at: http://sqlalche.me/e/e3q8)
Why?
Interestingly enough it gives no Error when I do this:
for userExpireDate in session.query(PayingUser.expireDate).filter(PayingUser.mail == sender):
But I'd like to detect if there was no result. And if I try it this way (I know that's not elegant but nevertheless):
i = 0
for userExpireDate in session.query(PayingUser.expireDate).filter(PayingUser.mail == sender):
i += 1
...
if i == 0:
print('No user in database')
then I again get a horribly long traceback error.
Here is the model definition in another file called: payingUser.py
from sqlalchemy import Column, String, Integer, DateTime
from base import Base
from datetime import datetime
class PayingUser(Base):
__tablename__ = 'payingUsers'
mailaddress = Column(String, primary_key=True, unique=True)
firstName = Column(String)
lastName = Column(String)
expireDate = Column(DateTime)
def __init__(self, mailaddress, firstName, lastName):
self.mailaddress = mailaddress
self.firstName = firstName
self.lastName = lastName
self.expireDate = datetime.now()
What's happening here? Can anybody help? Yes, I'm new to sqlalchemy.
There is another table that's not used in this query, but kind of seems to appear in the traceback.
from sqlalchemy import Column, String, Integer, DateTime, Text, Table
from datetime import datetime
from base import Base
class Mail(Base):
__tablename__ = 'mails'
mail_id = Column(Integer, primary_key=True)
sender = Column(String(100))
subject = Column(String)
received = Column(DateTime, nullable=True)
answer = Column(Integer)
text = Column(Text)
html = Column(Text)
def __init__(self):
self.sender = ''
self.subject = ''
self.received = 0
self.answer = 0
self.text = ''
self.html = ''
Thanks!!
I am an idiot!
The reason for my error was, that I had the model definitions in separated files and I imported one of them AFTER the create_all(engine) statement. So I practically did this:
from testingUser import TestingUser
Base.metadata.create_all(engine)
session = Session()
from mail import Mail
Making it correct solved all my problems.
from testingUser import TestingUser
from mail import Mail
Base.metadata.create_all(engine)
session = Session()
Me butthead!!! This took me 3 days. Arghh.
I am creating a backend with multiple tables have user id as the primary field with is of UUID type in the postgresql database. But I am getting the following error:
Traceback (most recent call last):
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1179, in _execute_context
context = constructor(dialect, self, conn, *args)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/default.py", line 743, in _init_compiled
for key in compiled_params
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/default.py", line 743, in <genexpr>
for key in compiled_params
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/dialects/postgresql/psycopg2.py", line 487, in process
value = _python_UUID(value)
File "/usr/lib64/python3.7/uuid.py", line 157, in __init__
hex = hex.replace('urn:', '').replace('uuid:', '')
AttributeError: 'UUID' object has no attribute 'replace'
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/flask/app.py", line 1832, in full_dispatch_request
rv = self.dispatch_request()
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/flask/app.py", line 1818, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/flask_restful/__init__.py", line 458, in wrapper
resp = resource(*args, **kwargs)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/flask/views.py", line 88, in view
return self.dispatch_request(*args, **kwargs)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/flask_restful/__init__.py", line 573, in dispatch_request
resp = meth(*args, **kwargs)
File "/mnt/home/Programming/Projects/Social Network/Server/src/new_user.py", line 17, in post
self.database_helper(args)
File "/mnt/home/Programming/Projects/Social Network/Server/src/new_user.py", line 26, in database_helper
db.session.commit()
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/scoping.py", line 162, in do
return getattr(self.registry(), name)(*args, **kwargs)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 1026, in commit
self.transaction.commit()
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 493, in commit
self._prepare_impl()
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 472, in _prepare_impl
self.session.flush()
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 2458, in flush
self._flush(objects)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 2596, in _flush
transaction.rollback(_capture_exception=True)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/util/langhelpers.py", line 68, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 129, in reraise
raise value
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 2556, in _flush
flush_context.execute()
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/unitofwork.py", line 422, in execute
rec.execute(self)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/unitofwork.py", line 589, in execute
uow,
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/persistence.py", line 245, in save_obj
insert,
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/orm/persistence.py", line 1066, in _emit_insert_statements
c = cached_connections[connection].execute(statement, multiparams)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 988, in execute
return meth(self, multiparams, params)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/sql/elements.py", line 287, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1107, in _execute_clauseelement
distilled_params,
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1182, in _execute_context
e, util.text_type(statement), parameters, None, None
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1466, in _handle_dbapi_exception
util.raise_from_cause(sqlalchemy_exception, exc_info)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 383, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/util/compat.py", line 128, in reraise
raise value.with_traceback(tb)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 1179, in _execute_context
context = constructor(dialect, self, conn, *args)
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/default.py", line 743, in _init_compiled
for key in compiled_params
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/engine/default.py", line 743, in <genexpr>
for key in compiled_params
File "/home/ayushs/.local/share/virtualenvs/Server-D_x4HQZH/lib/python3.7/site-packages/sqlalchemy/dialects/postgresql/psycopg2.py", line 487, in process
value = _python_UUID(value)
File "/usr/lib64/python3.7/uuid.py", line 157, in __init__
hex = hex.replace('urn:', '').replace('uuid:', '')
sqlalchemy.exc.StatementError: (builtins.AttributeError) 'UUID' object has no attribute 'replace'
Here is my model:
from database.shared_db import db
from sqlalchemy.dialects import postgresql
from database.shared_bycrypt import bcrypt
class AuthenticationModel(db.Model):
user_id = db.Column('UserId', postgresql.UUID, primary_key = True)
email = db.Column('Email', postgresql.TEXT, unique = False, nullable=False)
phone_no = db.Column('PhoneNo', postgresql.TEXT, unique = False, nullable=False)
password = db.Column('Password', postgresql.TEXT, unique = False, nullable=False)
def __repr__(self):
return '<User %r>' % self.user_id
#property
def password_raw(self):
raise AttributeError('password not readable')
#password_raw.setter
def password_raw(self, password):
self.password = bcrypt.generate_password_hash(password)
def verify_password(self, password):
return bcrypt.check_password_hash(self.password, password)
And here is what my database helper function:
def database_helper(self, args):
id = uuid4()
userAuth = AuthenticationModel(user_id=id, email=args['email'], phone_no=args['phone_no'], password_raw=args['password'])
userInfo = PersonalInfoModel(user_id=id, first_name=args['first_name'], last_name=args['last_name'], dob=args['dob'])
db.session.add(userAuth)
db.session.add(userInfo)
db.session.commit()
I found many examples of autogenerating UUID fields. However, if I want to create some user across multiple databases, how can I do that? Because I think I will need to be able to pass the user id to the other tables even if I autogenerate it for one of the tables. Or should I simply use a text field?
uuid4() is generating a UUID instance.
You want to pass a string for the user_id field. Convert it to a string
user_id = str(uuid4())
If you like to pass UUID instance around and get them back in the result, you should update the user_id field in your schema to:
user_id = db.Column('UserId', postgresql.UUID(as_uuid=True), primary_key=True)
I have a Flask application with sqlalchemy in it. Running manage db init, manage db migrate and manage db upgrade worked perfectly. So the tables are created on db2 without any problems. When i try to do an insert, i get all kinds of errors.
Traceback (most recent call last):
File "*path*/lib/python3.6/site-packages/ibm_db_dbi.py", line 1258, in _execute_helper
return_value = ibm_db.execute(self.stmt_handler, parameters)
Exception: Binding Error:
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1193, in _execute_context
context)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/ibm_db_sa/ibm_db.py", line 107, in do_execute
cursor.execute(statement, parameters)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/ibm_db_dbi.py", line 1356, in execute
self._execute_helper(parameters)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/ibm_db_dbi.py", line 1268, in _execute_helper
raise self.messages[len(self.messages) - 1]
ibm_db_dbi.DatabaseError: ibm_db_dbi::DatabaseError: Binding Error:
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
rv = self.dispatch_request()
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/flask_restplus/api.py", line 319, in wrapper
resp = resource(*args, **kwargs)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/flask/views.py", line 88, in view
return self.dispatch_request(*args, **kwargs)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/flask_restplus/resource.py", line 44, in dispatch_request
resp = meth(*args, **kwargs)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api/app/api.py", line 37, in get
snp.sensor_info()
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api/app/network.py", line 123, in sensor_info
db_session.commit()
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/scoping.py", line 153, in do
return getattr(self.registry(), name)(*args, **kwargs)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 943, in commit
self.transaction.commit()
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 467, in commit
self._prepare_impl()
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 447, in _prepare_impl
self.session.flush()
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 2254, in flush
self._flush(objects)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 2380, in _flush
transaction.rollback(_capture_exception=True)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py", line 66, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 187, in reraise
raise value
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 2344, in _flush
flush_context.execute()
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/unitofwork.py", line 391, in execute
rec.execute(self)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/unitofwork.py", line 556, in execute
uow
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/persistence.py", line 181, in save_obj
mapper, table, insert)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/orm/persistence.py", line 830, in _emit_insert_statements
execute(statement, multiparams)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 948, in execute
return meth(self, multiparams, params)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/sql/elements.py", line 269, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1060, in _execute_clauseelement
compiled_sql, distilled_params
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1200, in _execute_context
context)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1413, in _handle_dbapi_exception
exc_info
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 203, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 186, in reraise
raise value.with_traceback(tb)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1193, in _execute_context
context)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/ibm_db_sa/ibm_db.py", line 107, in do_execute
cursor.execute(statement, parameters)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/ibm_db_dbi.py", line 1356, in execute
self._execute_helper(parameters)
File "/Users/sebastianlindblom/Documents/GrowSmarter/metrolive-api-env/lib/python3.6/site-packages/ibm_db_dbi.py", line 1268, in _execute_helper
raise self.messages[len(self.messages) - 1]
sqlalchemy.exc.DatabaseError: (ibm_db_dbi.DatabaseError) ibm_db_dbi::DatabaseError: Binding Error: [SQL: 'INSERT INTO "schema"."table" (sensor_id, code, lat, lon, x, y) VALUES (?, ?, ?, ?, ?, ?)'] [parameters: (2855, 30, 59.291658, 18.077241, 411.59730406100783, 769.5522643844229)] (Background on this error at: http://sqlalche.me/e/4xp6)
The model looks like:
class Sensor(Base):
__tablename__ = 'table'
__table_args__ = {'schema':'schema'}
sensor_id = db.Column(db.Integer, primary_key=True)
code = db.Column(db.Integer, unique=True, nullable=False)
lat = db.Column(db.Float, unique=True, nullable=False)
lon = db.Column(db.Float, unique=True, nullable=False)
x = db.Column(db.Float, unique=True, nullable=False)
y = db.Column(db.Float, unique=True, nullable=False)
def __repr__(self):
return '<Sensor %r, x=%r, y=%r>' % self.code % self.x % self.y
The insert code looks like:
from .models import Sensor
from .database import db_session
ins = Sensor(sensor_id = sensor_coords['sensor_code'][0],
code = sensor_coords['sensor'][0],
lat = sensor_coords['lat'][0],
lon = sensor_coords['long'][0],
x = sensor_coords['x'][0],
y = sensor_coords['y'][0])
db_session.add(ins)
db_session.commit()
Looking at the error message, this is how it's trying to bind the sql statement:
[SQL: 'INSERT INTO "schema"."table" (sensor_id, code, lat, lon, x, y) VALUES (?, ?, ?, ?, ?, ?)'] [parameters: (2855, 30, 59.291658, 18.077241, 411.59730406100783, 769.5522643844229)]
which looks correct? (schema and table names are replaced).
My database.py looks like:
from sqlalchemy import create_engine
from sqlalchemy.orm import scoped_session, sessionmaker
from sqlalchemy.ext.declarative import declarative_base
import ibm_db_sa
from app.api import app
engine = create_engine(app.config['SQLALCHEMY_DATABASE_URI'], convert_unicode=True)
db_session = scoped_session(sessionmaker(autocommit=False,
autoflush=False,
bind=engine))
Base = declarative_base()
Base.query = db_session.query_property()
def init_db():
Base.metadata.create_all(bind=engine)
I can't figure out whats wrong.. The insert format looks correct?
Appreciate all the help I can get. Thanks!
Got it to work!
Had to cast the types in the insert code as:
ins = Sensor(sensor_id = int(sensor_coords['sensor_code'][0]),
code = int(sensor_coords['sensor'][0]),
lat = float(sensor_coords['lat'][0]),
lon = float(sensor_coords['long'][0]),
x = float(sensor_coords['x'][0]),
y = float(sensor_coords['y'][0]))
Didn't realize numpy used its own int and float types...
I'm writting application to store leaked DBs and hashes in MySQL. I want to save some space, so I figured out it may be a good idea to store only unique hashes in Hashes table and put a reference from DBList table. In other words, if I want to get all hashes that belongs to db_id=1 I should ask for them using association table.
For testing purposes I've created these files:
create_fresh_db.py
mydb.py
regex_test.txt
My problem is that association table called dbtohash is filled properly only when I'm inserting unique hashes. If I'm trying to create different name for DB and using the same hashlist (regex_test.txt) an IntegrityError exception is raised. How can I fix that?
EDIT: Following suggestion given in comments. Here are relevant parts of my code. This is how I create many-to-many relationship and association table:
dbtohash = db.Table(
'dbtohash',
db.Column(
'hash_id',
db.Integer,
db.ForeignKey('Hashes.hash_id')),
db.Column(
'db_id',
db.Integer,
db.ForeignKey('DBList.db_id')))
class DBList(db.Model):
__tablename__ = 'DBList'
db_id = db.Column(db.Integer, primary_key=True)
db_name = db.Column(db.String(128), index=True, unique=True)
class Hashes(db.Model):
__tablename__ = 'Hashes'
hash_id = db.Column(db.Integer, primary_key=True)
hash_val = db.Column(db.String(1024), unique=True)
hash_salt = db.Column(db.String(256))
hash_plain = db.Column(db.String(256))
subscriptions = db.relationship(
'DBList', secondary=dbtohash, backref=db.backref(
'dbtohashref', lazy='dynamic'))
And this is how I insert data to it:
new list
# if we have some matched hashes...
if len(hash_pass) > 0:
# create new list
newlist = DBList(
db_name = '{}_{}'.format('db', datetime.utcnow()),
)
print('newlist: {}'.format(newlist))
# try to insert DB name to DBList table, raise exception if name is taken
try:
db.session.add(newlist)
db.session.commit()
db.session.flush()
except IntegrityError:
db.session.rollback()
print('this DB name is taken, choose another one', 'danger')
insert hashes to DB
failed=[]
for hash in hash_pass:
inserthash = Hashes (
hash_val = hash,
)
try:
db.session.add(inserthash)
db.session.commit()
db.session.flush()
hashid=inserthash.hash_id
except IntegrityError:
db.session.rollback()
failed.append(hash)
hashid=db.session.query(Hashes.hash_id).filter_by(hash_val=hash).one()[0]
# fill up association table
newlist.dbtohashref.append(inserthash)
db.session.commit()
if failed:
print('failed: {}'.format(failed))
problematic line is: newlist.dbtohashref.append(inserthash)
EDIT 2: full trace attached
Traceback (most recent call last):
File "mydb.py", line 88, in <module>
db.session.commit()
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/scoping.py", line 153, in do
return getattr(self.registry(), name)(*args, **kwargs)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 943, in commit
self.transaction.commit()
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 467, in commit
self._prepare_impl()
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 447, in _prepare_impl
self.session.flush()
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2254, in flush
self._flush(objects)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2380, in _flush
transaction.rollback(_capture_exception=True)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/util/langhelpers.py", line 66, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2344, in _flush
flush_context.execute()
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py", line 391, in execute
rec.execute(self)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py", line 556, in execute
uow
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 181, in save_obj
mapper, table, insert)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 866, in _emit_insert_statements
execute(statement, params)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 948, in execute
return meth(self, multiparams, params)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/sql/elements.py", line 269, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1060, in _execute_clauseelement
compiled_sql, distilled_params
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1200, in _execute_context
context)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1413, in _handle_dbapi_exception
exc_info
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/util/compat.py", line 203, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1193, in _execute_context
context)
File "/home/user/envs/project/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 507, in do_execute
cursor.execute(statement, parameters)
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/cursors.py", line 165, in execute
result = self._query(query)
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/cursors.py", line 321, in _query
conn.query(q)
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/connections.py", line 860, in query
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/connections.py", line 1061, in _read_query_result
result.read()
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/connections.py", line 1349, in read
first_packet = self.connection._read_packet()
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/connections.py", line 1018, in _read_packet
packet.check_error()
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/connections.py", line 384, in check_error
err.raise_mysql_exception(self._data)
File "/home/user/envs/project/local/lib/python2.7/site-packages/pymysql/err.py", line 107, in raise_mysql_exception
raise errorclass(errno, errval)
sqlalchemy.exc.IntegrityError: (pymysql.err.IntegrityError) (1062, u"Duplicate entry 'd38b70e33d7ae06c1696910eb6f93ca4' for key 'hash_val'") [SQL: u'INSERT INTO `Hashes` (hash_val, hash_salt, hash_plain) VALUES (%(hash_val)s, %(hash_salt)s, %(hash_plain)s)'] [parameters: {'hash_salt': None, 'hash_val': 'd38b70e33d7ae06c1696910eb6f93ca4', 'hash_plain': None}] (Background on this error at: http://sqlalche.me/e/gkpj)
Hello I am trying to change a class in SQLAlchemy because it giving me an error, the error is:
File "<string>", line 2, in __init__
File "C:\Python34\lib\site-packages\sqlalchemy\orm\instrumentation.py", line 324, in _new_state_if_none
state = self._state_constructor(instance, self)
File "C:\Python34\lib\site-packages\sqlalchemy\util\langhelpers.py", line 725, in __get__
obj.__dict__[self.__name__] = result = self.fget(obj)
File "C:\Python34\lib\site-packages\sqlalchemy\orm\instrumentation.py", line 158, in _state_constructor
self.dispatch.first_init(self, self.class_)
File "C:\Python34\lib\site-packages\sqlalchemy\event\attr.py", line 260, in __call__
fn(*args, **kw)
File "C:\Python34\lib\site-packages\sqlalchemy\orm\mapper.py", line 2693, in _event_on_first_init
configure_mappers()
File "C:\Python34\lib\site-packages\sqlalchemy\orm\mapper.py", line 2589, in configure_mappers
mapper._post_configure_properties()
File "C:\Python34\lib\site-packages\sqlalchemy\orm\mapper.py", line 1694, in _post_configure_properties
prop.init()
File "C:\Python34\lib\site-packages\sqlalchemy\orm\interfaces.py", line 144, in init
self.do_init()
File "C:\Python34\lib\site-packages\sqlalchemy\orm\relationships.py", line 1549, in do_init
self._process_dependent_arguments()
File "C:\Python34\lib\site-packages\sqlalchemy\orm\relationships.py", line 1605, in _process_dependent_arguments
self.target = self.mapper.mapped_table
File "C:\Python34\lib\site-packages\sqlalchemy\util\langhelpers.py", line 725, in __get__
obj.__dict__[self.__name__] = result = self.fget(obj)
File "C:\Python34\lib\site-packages\sqlalchemy\orm\relationships.py", line 1535, in mapper
% (self.key, type(argument)))
sqlalchemy.exc.ArgumentError: relationship 'prod_comm_rel' expects a class or a mapper argument (received: <class 'sqlalchemy.sql.schema.Column'>)
But it never change the error keeps comming, this is my class:
class Product(Base):
__tablename__="xxxxxx_reg"
__table_args__ = {"useexisting": True}
id = Column("id",BIGINT, primary_key=True)
name = Column("_name",Text, nullable=False)
code = Column("code", BIGINT, unique=True)
status = Column("status",BIGINT, ForeignKey(Status.code),nullable=False)
description = Column("description",Text, nullable=False)
avatar = Column("avatar", Text, nullable=False)
type = Column("_type",BIGINT, ForeignKey(Type.id),nullable=False)
price = Column("price",Numeric(20,2),nullable=False)
costs = Column("costs",Numeric(20,2),default=0.00)
commCode = Column("commerce", BIGINT, ForeignKey(Commerce.code), nullable=False)
#Relation
prod_status_rel = relationship(Status, backref=backref("Product"))
prod_type_rel = relationship(Type, backref=backref("Product"))
prod_comm_rel = relationship(Commerce, backref=backref("Product"))
def __repr__(self):
return "<Product(id='%s', name='%s', status='%s', description='%s', " \
"type='%s', price='%s', costs='%s', code='%s',commerce='%s')>"%(self.id, self.name,
self.status,self.description,
self.type, self.price, self.costs, self.code, self.commCode)
metadata = MetaData()
product_tbl = Table(__tablename__, metadata,id,name,status,description, type,price, costs, code, commCode)
engine = conection().conORM()
metadata.create_all(engine)
How can I fix this code, because I made the change and when I run the class alone It works, the problem is when i try to run it with the other parts of the codes