I'm writing an application which is kind of event handling app, and
the important functionality is sending emails. User can create his own
email template, and when an event occurs the email is built using this
template and sent. An event is nothing but a python dictionary with
some values. As you may guess, I want to give the user a possibility
to create an e-mail template which would use the variables from this
dictionary (context).
In fact, I would like to do something as simple as this:
#Create email body
email_body = render_to_string(emailtemplate.emailbody, event.context)
# Then send email...
So when the user defines the email body template he could make it like
"Hey {{receipent_name}}, event {{eventid}} has occured for device
{{device_name}}". You get the idea: my application not only uses
django template language internally to output html, but I must also
offer a template language as a functionality for the users. I don't
want to reinvent the wheel and write my own template language for
handling all the variable placeholders, filters etc. But if I use
django template engine to do this, the following issues arise:
1) I don't want django to process some of the tags. For example if
somebody creates email template that contains {% url something %} - I
don't want this to work. I want this tag to be disabled (and some
others too) Is it possible?
2) I don't want filters and missing variables {{value}} to fail
silently. When a variable is missing in context while rendering the
email content - this is an error that I wish to handle (tell the user
that his template is broken). Is this possible?
Did anyone use a django template language in that fashion in a web
application that, itself is written in django? Does it make sense? Is
it safe?
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