This commit brings back some reports hidden or changed
by the commit in 14b436923c if
the site setting `use_legacy_pageviews` is false.
* Unhide the old “Consolidated Pageviews” report and rename it
to “Legacy Consolidated Pageviews”
* Add a legacy_page_view_total_reqs report called “Legacy Pageviews”,
which calculates pageviews in the same way the old page_view_total_reqs
report did.
This will allow admins to better compare old and new pageview
stats which are based on browser detection if they have switched
over to _not_ use legacy pageviews.
### UI changes
All of the UI changes described are gated behind the `use_legacy_pageviews`
site setting.
This commit changes the admin dashboard pageviews report to
use the "Consolidated Pageviews with Browser Detection" report
introduced in 2f2da72747 with
the following changes:
* The report name is changed to "Site traffic"
* The pageview count on the dashboard is counting only using the new method
* The old "Consolidated Pageviews" report is renamed as "Consolidated Legacy Pageviews"
* By default "known crawlers" and "other" sources of pageviews are hidden on the report
When `use_legacy_pageviews` is `true`, we do not show or allow running
the "Site traffic" report for admins. When `use_legacy_pageviews` is `false`,
we do not show or allow running the following legacy reports:
* consolidated_page_views
* consolidated_page_views_browser_detection
* page_view_anon_reqs
* page_view_logged_in_reqs
### Historical data changes
Also part of this change is that, since we introduced our new "Consolidated
Pageviews with Browser Detection" report, some admins are confused at either:
* The lack of data before a certain date , which didn’t exist before
we started collecting it
* Comparing this and the current "Consolidated Pageviews" report data,
which rolls up "Other Pageviews" into "Anonymous Browser" and so it
appears inaccurate
All pageview data in the new report before the date where the _first_
anon or logged in browser pageview was recorded is now hidden.
Followup 94fe31e5b3,
change the color of the "Known Crawler" bar on the
new "Consolidated Pageviews with Browser Detection (Experimental)"
report to be purple, like it was on the original
"Consolidated Pageviews" report to allow for easier
visual comparison.
Also removes the report colors to named keys in a hash
for easier reference than having to look up the
index of the array all the time.
