Travis config to test on the different django database backends.

.travis.yml

@@ -4,10 +4,23 @@ python:
     - "3.4"
     - "3.5"
 env:
-    - DJANGO="Django>=1.7.0,<1.8.0"
-    - DJANGO="Django>=1.8.0,<1.9.0"
-    - DJANGO="Django>=1.9.0,<1.10.0"
-    - DJANGO="Django>=1.10b1,<1.11.0"
+    # PostgreSQL
+    - DJANGO="Django>=1.7.0,<1.8.0"   DB=postgresql DB_NAME=travis_ci_test
+    - DJANGO="Django>=1.8.0,<1.9.0"   DB=postgresql DB_NAME=travis_ci_test
+    - DJANGO="Django>=1.9.0,<1.10.0"  DB=postgresql DB_NAME=travis_ci_test
+    - DJANGO="Django>=1.10b1,<1.11.0" DB=postgresql DB_NAME=travis_ci_test
+
+    # SQLite3
+    - DJANGO="Django>=1.7.0,<1.8.0"   DB=sqlite3 DB_NAME=db.sqlite3
+    - DJANGO="Django>=1.8.0,<1.9.0"   DB=sqlite3 DB_NAME=db.sqlite3
+    - DJANGO="Django>=1.9.0,<1.10.0"  DB=sqlite3 DB_NAME=db.sqlite3
+    - DJANGO="Django>=1.10b1,<1.11.0" DB=sqlite3 DB_NAME=db.sqlite3
+
+    # MySQL
+    - DJANGO="Django>=1.7.0,<1.8.0"   DB=mysql DB_NAME=mysql_db
+    - DJANGO="Django>=1.8.0,<1.9.0"   DB=mysql DB_NAME=mysql_db
+    - DJANGO="Django>=1.9.0,<1.10.0"  DB=mysql DB_NAME=mysql_db
+    - DJANGO="Django>=1.10b1,<1.11.0" DB=mysql DB_NAME=mysql_db
 
 matrix:
   allow_failures:
@@ -24,6 +37,14 @@ matrix:
 install:
     - pip install -q $DJANGO
     - pip install -r requirements.txt
+
+    # Handle PostgreSQL
+    - if [[ "$DB" = "postgresql" ]]; then pip install psycopg2; fi
+    - if [[ "$DB" = "postgresql" ]]; then psql -c 'create database travis_ci_test;' -U postgres; fi
+
+    # Handle MySQL
+    - if [[ "$DB" = "mysql" ]]; then pip install mysqlclient; fi
+    - if [[ "$DB" = "mysql" ]]; then mysql -e 'create database mysql_db;'; fi
 
 script:
     - cd project

project/project/settings.py

@@ -34,12 +34,14 @@
 
 WSGI_APPLICATION = 'wsgi.application'
 
-DB_NAME = os.path.join(BASE_DIR, 'db.sqlite3')
+DB = os.environ['DB']
+if DB == 'postgresql':
+    DB = 'postgresql_psycopg2'
 
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': DB_NAME
+        'ENGINE': 'django.db.backends.' + DB,
+        'NAME': os.environ['DB_NAME']
     }
 }