Add wiki audit logs (#52)

* Add wiki audit logs

* Flake8 issues

* Forgot to remove debug prints

* Removed print but forgot to remove `.text`

* Futile attempt to increase coverage

* Reading up on API docs asks us to send User-Agent with our info in it

* Add tests for wiki

* Well played, Travis

* Nothing in my local env is working on travis lol

* Why does it appear it can't decide between 200 & 302 :thinking:

* Flake8

* Post route

* Same issue with local env working differently from Travis env

* Add page to show page is being edited

* Lock page when it is being edited

* Add JS to keep refreshing lock on article

* Add compare route to render diff

* Add revision table to database

* Add revision storage

* Add revision list route

* JS for Revision list radio buttons

* Add revision comparison template

* Add revision list template

* flak8 my ass

* [Unit Tests] New unit tests for history routes :sparkles:

* Does this fix things?

* Address gdude's reviews

* Noticed a bug in the diff generation route which meant that empty posts could potentially error

* Flake 8

* Audit logs were logging after change, meaning it was comparing after & after, which didn't work

* Change table name

* Remove whitespace from line to fix flake8 issue

* Address reviews

* Git hook made me do something wrong, apologies

* Switch from werkzeug redirect to flask one

* Address Apertures reviews

1 files changed, 27 insertions, 0 deletions

diff --git a/pysite/views/wiki/history/show.py b/pysite/views/wiki/history/show.py
new file mode 100644
index 00000000..9580816f
--- /dev/null
+++ b/pysite/views/wiki/history/show.py
@@ -0,0 +1,27 @@
+# coding=utf-8
+import datetime
+
+from werkzeug.exceptions import NotFound
+
+from pysite.base_route import RouteView
+from pysite.mixins import DBMixin
+
+
+class RevisionsListView(RouteView, DBMixin):
+    path = "/history/show/<string:page>"
+    name = "history.show"
+
+    table_name = "wiki_revisions"
+    table_primary_key = "id"
+
+    def get(self, page):
+        results = self.db.filter(self.table_name, lambda revision: revision["slug"] == page)
+        if len(results) == 0:
+            raise NotFound()
+
+        for result in results:
+            ts = datetime.datetime.fromtimestamp(result["date"])
+            result["pretty_time"] = ts.strftime("%d %b %Y")
+
+        results = sorted(results, key=lambda revision: revision["date"], reverse=True)
+        return self.render("wiki/revision_list.html", page=page, revisions=results), 200