statistics view

[kosarko]

v5 displays custom statistics (item views, total and individual bitstream download counts) per item, with drill down from all time -> individual year -> individual month.

The current (v5) implementation is in https://github.com/ufal/piwik-charts and has a live demo at https://ufal.github.io/piwik-charts/ (https://ufal.github.io/piwik-charts/single-chart-example.html or https://ufal.github.io/piwik-charts/multi-chart-example.html)

The examples reveal most of the api. The endpoint is https://lindat.mff.cuni.cz/statistics/handle?h=<item_handle>&period=[year|month|day]&date=[yyyy|yyyy-MM]

• h is the handle of an item, you get that from metadata field dc.identifier.uri, it's only ther prefix/suffix part (ie. you need to strip http(s)://hdl.handle.net/ if present. This parameter is mandatory
• date - if missing it returns the overall + year based counts; if it is in the yyyy form (e.g. 2020), it returns totals for the given year and a breakdown into individual months; if in the yyyy-MM (e.g. 2020-10) it returns total for the given month + a breakdown into individual dates. It handles the month with and without the leading zero (02 and 2)
• period can be ignored (it's determinated by the date)

The implementation at https://github.com/ufal/piwik-charts/blob/master/js/piwik_charts.js does some sort of caching (if you zoom in a level and then, zoom out...). If it's a recent item such as 11234/1-5502 which has data only for the current year, it zooms in automatically ...