Merge pull request #4023 from mathesar-foundation/rm_sqlite

Remove support for sqlite

config/settings/common_settings.py

@@ -116,7 +116,6 @@ def pipe_delim(pipe_string):
 }
 
 # POSTGRES_DB, POSTGRES_USER, POSTGRES_PASSWORD, POSTGRES_HOST & POSTGRES_PORT are required env variables for forming a pg connection string for the django database
-# lack of any one of these will result in the internal django database to be sqlite.
 POSTGRES_DB = os.environ.get('POSTGRES_DB', default=None)
 POSTGRES_USER = os.environ.get('POSTGRES_USER', default=None)
 POSTGRES_PASSWORD = os.environ.get('POSTGRES_PASSWORD', default=None)
@@ -125,13 +124,10 @@ def pipe_delim(pipe_string):
 
 if POSTGRES_DB and POSTGRES_USER and POSTGRES_PASSWORD and POSTGRES_HOST and POSTGRES_PORT:
     DATABASES['default'] = db_url(f'postgres://{POSTGRES_USER}:{POSTGRES_PASSWORD}@{POSTGRES_HOST}:{POSTGRES_PORT}/{POSTGRES_DB}')
-else:
-    DATABASES['default'] = db_url('sqlite:///db.sqlite3')
 
 for db_key, db_dict in DATABASES.items():
-    # Engine should be '.postgresql' or '.postgresql_psycopg2' for all db(s),
-    # however for the internal 'default' db 'sqlite3' can be used.
-    if not db_dict['ENGINE'].startswith('django.db.backends.postgresql') and db_key != 'default':
+    # Engine should be '.postgresql' or '.postgresql_psycopg2' for all db(s)
+    if not db_dict['ENGINE'].startswith('django.db.backends.postgresql'):
         raise ValueError(
             f"{db_key} is not a PostgreSQL database. "
             f"{db_dict['ENGINE']} found for {db_key}'s engine."

docs/docs/user-guide/databases.md

@@ -10,9 +10,6 @@ Every PostgreSQL database lives within a PostgreSQL server.
 
 - The **Internal Server:** Most Mathesar installations have an internal PostgreSQL server which the Mathesar application controls and utilizes for storage of application-specific metadata.
 
-    !!! info "Some Mathesar installations don't have an internal server"
-        It's possible (though not recommended) to configure Mathesar to store its internal metadata in SQLite, thereby circumventing the need for an internal server.
-
 ## Creating a new database
 
 If you're starting your database from scratch with Mathesar you can either:

mathesar/views.py

@@ -88,8 +88,6 @@ def _get_internal_db_meta():
             'port': internal_db['PORT'],
             'database_name': internal_db['NAME']
         }
-    else:
-        return {'type': 'sqlite'}
 
 
 def get_common_data(request, database_id=None, schema_oid=None):