Database settings
DATABASES = {
'default': {
'ENGINE': os.environ.get('DB_ENGINE', "mysql"),
'NAME': os.environ.get('DB_NAME', "django_db"),
'USER': os.environ.get('DB_USER', "root"),
'PASSWORD': os.environ.get('DB_PASS', "123456798"),
'HOST': os.environ.get('DB_HOST', "localhost"),
'PORT': os.environ.get('DB_PORT'),
}
}
error
django.core.exceptions.ImproperlyConfigured: 'mysql' isn't an available database backend or couldn't be imported. Check the above exception. To use one of the built-in backends, use 'django.db.backends.XXX', where XXX is one of:
'mysql', 'oracle', 'postgresql', 'sqlite3'
Connecting with mysql to generate migration but facing issue
Its my first time and facing following above issue please guide.
Instead of :
mysql in 'ENGINE': os.environ.get('DB_ENGINE', "mysql"),
Try this:
'ENGINE': os.environ.get('DB_ENGINE', "django.db.backends.mysql"),
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'django_db',
'USER': 'root',
'PASSWORD': '123456798',
}
}
Try this to establish a connection.
I don't usually add HOST or Port but it still connect to database.
I only mention Host or Port if they don't have the default settings.
Related
my db setting
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'test',
'HOST': '127.0.0.1',
'USER': 'postgres',
'PORT': '5432',
'PASSWORD': '1234'
}
}
i try python manage.py migrate but have this error
EDIT: it happen when i re-install python
I'm stupid, I wrote the wrong password in the settings
Change django.db.backends.postgresql_psycopg2 to django.db.backends.postgresql.
I using django version 3.0.2.
I'd like to use postgreSQL as my instance db.
And there are two version postgreSQL in server.
After config setting.py DATABASES parameter, and runserver.
It showed error.
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'dj_web_console',
'USER': 'django',
'PASSWORD': 'django',
'HOST': 'localhost',
'PORT': '',
}
}
psycopg2.OperationalError: FATAL: password authentication failed for user "django"
I'm sure that the username and password are correct.
How to config pg_path in Django as odoo:
In this case, I can use the specific version of pgsql. And run smoothly.
I solve this by indicating the port of the version I installed.
In this case, I have a version 9.6 which install in 5432 and the other is 5433.
So I just solved this by filling in 5433.
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'dj_web_console',
'USER': 'django',
'PASSWORD': 'django',
'HOST': 'localhost',
'PORT': '5433',
}
}
I'm trying to change the default database used in Django to MySQL, I've adjusted my settings.py file like so:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'clients',
'HOST': 'localhost',
'PORT': '3307',
'USER': 'root',
'PASSWORD': '*****',
}
}
I'm still getting the django.db.utils.OperationalError: (1049, "Unknown database 'clients'"). When I try to connect to the 'mysql' database that comes default with MySQL I have no issue. I get this error when I try to use manage.py makemigrations,migrations or runserver. I have MySQL-Python installed and everything. Proof that my clients database exists:
I need to use multiple databases for my django project. The application works fine when there is only one database:
In setting.py
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'mydb',
'USER': 'root',
'PASSWORD': '',
'HOST': '127.0.0.1',
'PORT': 3306,
},
But if I added more databases from the same engine:
DATABASES = {
'default':{},
'mydb1': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'mydb1',
'USER': 'root',
'PASSWORD': '',
'HOST': '127.0.0.1',
'PORT': 3306,
},
'mydb2': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'mydb2',
'USER': 'root',
'PASSWORD': '',
'HOST': '127.0.0.1',
'PORT': 3306,
}
}
it gives me following error:
ImproperlyConfigured: settings.DATABASES is improperly configured. Please supply the ENGINE value. Check settings documentation for more details.
Also, i tried:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'mydb1',
'USER': 'root',
'PASSWORD': '',
'HOST': '127.0.0.1',
'PORT': 3306,
},
'mydb2': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'mydb2',
'USER': 'root',
'PASSWORD': '',
'HOST': '127.0.0.1',
'PORT': 3306,
}
}
It only sees mydb1, not mydb2, when i tried query mydb2, it gives me:
DoesNotExist: Site matching query does not exist.
Do I need to define database route? it seems that I only need to do that for customized read/write.
Thanks
UPDATE:
In django docs, it says "The default routing scheme ensures that if a database isn't specified, all queries fall back to the default database".
So I guess my actual question is how do I specify a database to use for my queries?
It is explicetely stated in docs
The DATABASES setting must configure a default database; any number of
additional databases may also be specified.
If the concept of a default database doesn’t make sense in the context
of your project, you need to be careful to always specify the database
that you want to use.
As in your second example default database is not configured
DATABASES = {
'default':{},
...
}
when you access your data with no database specified, a django.db.backends.dummy backend is used, which complains on your configuration with ImproperlyConfigured error.
An example of configuring multiple database usage with Database Routers can be found in docs
update
Site matching query error is for completely different reasons, and is another question. Answer here, as it is duplicate of many others: as your mysql1 and mysql2 dbs have different content, second one seems to not to be properly configured. Refer site matching query does not exist.
Exception Type: OperationalError at /
Exception Value: (1049, "Unknown database 'database'")
At the moment i tried this:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
'NAME': 'database', # Or path to database file if using sqlite3.
'USER': 'root', # Not used with sqlite3.
'PASSWORD': '****', # Not used with sqlite3.
'HOST': '/var/lib/mysql/database/', # Set to empty string for localhost. Not used with sqlite3.
'PORT': '80', # Set to empty string for default. Not used with sqlite3.
}
}
If i don't specify a host i get this error:
OperationalError at /
(2002, "Can't connect to local MySQL server through socket '/var/lib/mysql/database' (13)")
Can it be something with permissions?
thanks in advance :)
First, create the database on mysql.
Second, edit your default conection like this.
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'MY_DATABASE_NAME',
'USER': 'root',
'PASSWORD': 'MY_PASSWORD',
}
}
finally run your syncdb.
./manage.py syncdb
PORT is not the web server port, but the database port, which is 3306 for MySQL, and HOST is the database sever's IP or name. You probably want 127.0.0.1.
You should create the database beforehand with create database mydatabase charset utf8; from the mysql prompt.
Login to mysql on Terminal and create a DB
mysql -u root -p
CREATE DATABASE dbname;
USE dbname;
Then on setting.py file
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'dbname',
'USER': 'root', #Mysql username
'PASSWORD': 'password', #mysql password
'HOST': 'localhost', # Or an IP Address that your DB is hosted on
'PORT': '3306',
}
}
I dont think you can create a database by the name database. So please check the following first...
1) Have installed mysql-server and created the database with proper grant all permissions? If you have done so then check next steps
2)I dont know about Amazon, but this error was common in older versions of Linux distros from Redhat and Fedora. An option is to do this
by setting the SELINUX line in /etc/sysconfig/selinux to Disabled:
SELINUX=Disabled