Install all python dependcies with pip install -r requirements.txt
from the project root. Run python manage.py runserver to start the
development server. This should NOT be used for deployment. Now visit
http://localhost:8000 in a web browser to see the site.
Much of this information is redundant with the Django documentation. Refer to [https://docs.djangoproject.com/en/1.8/](Django's documentation) for more information.
The project is organized into apps (folders) for different
functionality. Components common to all apps are stored in the
professor_oak directory.
After you enter the site's url in your browser, the web server
generates an HttpRequest and passes it off to Django. Django looks at
the url of the request and compares it against the expressions listed
in professor_oak/urls.py. In some cases, if the expression is
followed by include(<app_name>), Django will look in that app's
directory for a file named urls.py and continue checking there.
Assuming Django finds a matching expression, it finds and calls the
corresponding view function in views.py. A view function must return
an HttpResponse object which then gets sent back to the browser. In
our case, most views will not generate HTML themselves but will look
up a template file. The view may generate some data to put in to the
template before returning it; this is known as a context. Global
templates live in the professor_oak/templates directory and
app-spefic templates live in the corresponding app_name/templates
directories.
In Django, a Model class is equivalent to a database table. An instance of that class corresponds to a database row. Professor oak defines many models, here are some of the main ones.
Chemical - This is the general idea of a chemical (eg Lithium
hydroxide). It is not a bottle of lithium hydroxide, just the
general concept of lithium hydroxide. An instance of Chemical
describes safety information among other things.
Container - This is a specific container of a chemical. This could be a specific bottle of lithium hydroxide in your lab. Attributes associated with a container include things like its location, amount and owner.
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