Update printing webpage to be driven by Wagtail

[bbusenius]

Issue

The printing.uchicago.edu webpage is a standalone static webpage that was designed to look like it is owned by the University, however, it is maintained by us. Since it is a standalone page, it must be updated manually by us. This page should be editable in Wagtail so that Librarians can maintain it. This can be achieved using the Wagtail restful API.

Related materials

• Wagtail restful API documentation
• Documentation for unrelated code where we already use this (staff/models.py)

Related code

An example of how to add fields to the rest API.

    from wagtail.api import APIField

    api_fields = [
        APIField('cnetid'),
        APIField(
            'employee_type',
            serializer=serializers.CharField(source='get_employee_type')
        ),
        APIField('position_title'),
        APIField('position_eliminated'),
        APIField('supervises_students'),
        APIField(
            'library_units',
            serializer=serializers.ListField(source='get_serialized_units')
        ),
    ]

Additional information:

• Example call to the Wagtail API: https://www.lib.uchicago.edu/api/v2/pages/?format=json&id=1633&limit=1&fields=*
• Location of the printing page on disk: /projects/printing/index.html.