Views
=====

Inheritance map for the ``etfs`` app's HTTP views. Each block
lists one project-internal base class (or local mixin) and the
ETF views that extend it. Django base classes (``DetailView`` /
``ListView`` / ``UpdateView`` / ``RedirectView``) and
django-braces mixins (``LoginRequiredMixin``,
``FormMessagesMixin``) are omitted to keep the picture readable.
``(+ ...)`` after a leaf class lists any *other* project-internal
parents the view also inherits from.

Bases in ``richy.core.views``
-----------------------------

.. code-block:: text

    SubmenuViewMixin
    ├── SplitterSubmenuViewMixin                 (local)
    └── EtfSubmenuViewMixin                      (local)

    BaseUserItemCreateView
    └── OverviewCreateView                       (+ FetchDataMixin)

    BaseFetchItemAjaxView
    ├── FetchOverviewAjaxView
    └── FetchEtfAjaxView

    BaseItemDetailView
    └── EtfDetailView                            (+ EtfSubmenuViewMixin)

    UserItemManipulationMixin
    └── EtfUpdateView                            (+ EtfSubmenuViewMixin, FetchDataMixin)

    BaseDeleteUserItemRedirectView
    └── DeleteEtfRedirectView

    BasePerformanceDetailView
    └── PerformanceDetailView                    (+ EtfSubmenuViewMixin)

    BaseDrawdownPeriodsAndAthsDetailView
    └── DrawdownPeriodsAndAthsTemplateView       (+ EtfSubmenuViewMixin)

    BaseTheEyeView
    └── EtfTheEyeView                            (+ EtfSubmenuViewMixin)

    BaseHistoricalData
    └── HistoricalDataListView                   (+ EtfSubmenuViewMixin)

    BaseSplitterFormView
    └── SplitterFormView                         (+ SplitterSubmenuViewMixin)

    BaseSplitterPreviewFormView
    └── SplitterPreviewFormView                  (+ SplitterSubmenuViewMixin)

Bases in ``richy.news.views``
-----------------------------

.. code-block:: text

    BaseNewsItemDetailView
    └── NewsDetailView                           (+ EtfSubmenuViewMixin)

Local mixins (``etfs/views.py``)
--------------------------------

Three mixins defined alongside the ETF views. The two submenu
mixins themselves extend
:class:`~richy.core.views.SubmenuViewMixin`; ``FetchDataMixin``
carries no project base.

.. code-block:: text

    FetchDataMixin
    ├── OverviewCreateView
    ├── EtfUpdateView
    └── ResetEtfRedirectView

    SplitterSubmenuViewMixin
    ├── SplitterFormView
    └── SplitterPreviewFormView

    EtfSubmenuViewMixin
    ├── EtfDetailView
    ├── EtfUpdateView
    ├── PerformanceDetailView
    ├── DividendListView
    ├── DrawdownPeriodsAndAthsTemplateView
    ├── EtfTheEyeView
    ├── NewsDetailView
    └── HistoricalDataListView