Made sure the csv is served as an attachment
[ckanext-ga-report.git] / ckanext / ga_report / controller.py
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import re
import csv
import sys
import logging
import operator
import collections
from ckan.lib.base import (BaseController, c, g, render, request, response, abort)
 
import sqlalchemy
from sqlalchemy import func, cast, Integer
import ckan.model as model
from ga_model import GA_Url, GA_Stat, GA_ReferralStat
 
log = logging.getLogger('ckanext.ga-report')
 
 
def _get_month_name(strdate):
    import calendar
    from time import strptime
    d = strptime(strdate, '%Y-%m')
    return '%s %s' % (calendar.month_name[d.tm_mon], d.tm_year)
 
 
def _month_details(cls):
    months = []
    vals = model.Session.query(cls.period_name).distinct().all()
    for m in vals:
        months.append( (m[0], _get_month_name(m[0])))
    return sorted(months, key=operator.itemgetter(0), reverse=True)
 
 
class GaReport(BaseController):
 
    def csv(self, month):
        import csv
 
        q = model.Session.query(GA_Stat)
        if month != 'all':
            q = q.filter(GA_Stat.period_name==month)
        entries = q.order_by('GA_Stat.period_name, GA_Stat.stat_name, GA_Stat.key').all()
 
        response.headers['Content-Type'] = "text/csv; charset=utf-8"
        response.headers['Content-Disposition'] = str('attachment; filename=stats_%s.csv' % (month,))
 
        writer = csv.writer(response)
        writer.writerow(["Period", "Statistic", "Key", "Value"])
 
        for entry in entries:
            writer.writerow([entry.period_name.encode('utf-8'),
                             entry.stat_name.encode('utf-8'),
                             entry.key.encode('utf-8'),
                             entry.value.encode('utf-8')])
 
    def index(self):
 
        # Get the month details by fetching distinct values and determining the
        # month names from the values.
        c.months = _month_details(GA_Stat)
 
        # Work out which month to show, based on query params of the first item
        c.month_desc = 'all months'
        c.month = request.params.get('month', '')
        if c.month:
            c.month_desc = ''.join([m[1] for m in c.months if m[0]==c.month])
 
        q = model.Session.query(GA_Stat).\
            filter(GA_Stat.stat_name=='Totals')
        if c.month:
            q = q.filter(GA_Stat.period_name==c.month)
        entries = q.order_by('ga_stat.key').all()
 
        def clean_key(key, val):
            if key in ['Average time on site', 'Pages per visit', 'New visits', 'Bounces']:
                val =  "%.2f" % round(float(val), 2)
                if key == 'Average time on site':
                    mins, secs = divmod(float(val), 60)
                    hours, mins = divmod(mins, 60)
                    val = '%02d:%02d:%02d (%s seconds) ' % (hours, mins, secs, val)
                if key in ['New visits','Bounces']:
                    val = "%s%%" % val
            if key in ['Total page views', 'Total visits']:
                val = int(val)
 
            return key, val
 
        c.global_totals = []
        if c.month:
            for e in entries:
                key, val = clean_key(e.key, e.value)
                c.global_totals.append((key, val))
        else:
            d = collections.defaultdict(list)
            for e in entries:
                d[e.key].append(float(e.value))
            for k, v in d.iteritems():
                if k in ['Total page views', 'Total visits']:
                    v = sum(v)
                else:
                    v = float(sum(v))/len(v)
                key, val = clean_key(k,v)
 
                c.global_totals.append((key, val))
                c.global_totals = sorted(c.global_totals, key=operator.itemgetter(0))
 
        keys = {
            'Browser versions': 'browser_versions',
            'Browsers': 'browsers',
            'Operating Systems versions': 'os_versions',
            'Operating Systems': 'os',
            'Social sources': 'social_networks',
            'Languages': 'languages',
            'Country': 'country'
        }
 
        def shorten_name(name, length=60):
            return (name[:length] + '..') if len(name) > 60 else name
 
        def fill_out_url(url):
            import urlparse
            return urlparse.urljoin(g.site_url, url)
 
        c.social_referrer_totals, c.social_referrers = [], []
        q = model.Session.query(GA_ReferralStat)
        q = q.filter(GA_ReferralStat.period_name==c.month) if c.month else q
        q = q.order_by('ga_referrer.count::int desc')
        for entry in q.all():
            c.social_referrers.append((shorten_name(entry.url), fill_out_url(entry.url),
                                       entry.source,entry.count))
 
        q = model.Session.query(GA_ReferralStat.url,
                                func.sum(GA_ReferralStat.count).label('count'))
        q = q.filter(GA_ReferralStat.period_name==c.month) if c.month else q
        q = q.order_by('count desc').group_by(GA_ReferralStat.url)
        for entry in q.all():
            c.social_referrer_totals.append((shorten_name(entry[0]), fill_out_url(entry[0]),'',
                                            entry[1]))
 
        for k, v in keys.iteritems():
            q = model.Session.query(GA_Stat).\
                filter(GA_Stat.stat_name==k)
            if c.month:
                entries = []
                q = q.filter(GA_Stat.period_name==c.month).\
                          order_by('ga_stat.value::int desc')
 
            d = collections.defaultdict(int)
            for e in q.all():
                d[e.key] += int(e.value)
            entries = []
            for key, val in d.iteritems():
                entries.append((key,val,))
            entries = sorted(entries, key=operator.itemgetter(1), reverse=True)
 
            # Get the total for each set of values and then set the value as
            # a percentage of the total
            if k == 'Social sources':
                total = sum([x for n,x in c.global_totals if n == 'Total visits'])
            else:
                total = sum([num for _,num in entries])
            setattr(c, v, [(k,_percent(v,total)) for k,v in entries ])
 
        return render('ga_report/site/index.html')
 
 
class GaDatasetReport(BaseController):
    """
    Displays the pageview and visit count for datasets
    with options to filter by publisher and time period.
    """
    def publisher_csv(self, month):
        '''
        Returns a CSV of each publisher with the total number of dataset
        views & visits.
        '''
        c.month = month if not month == 'all' else ''
        response.headers['Content-Type'] = "text/csv; charset=utf-8"
        response.headers['Content-Disposition'] = str('attachment; filename=publishers_%s.csv' % (month,))
 
        writer = csv.writer(response)
        writer.writerow(["Publisher Title", "Publisher Name", "Views", "Visits", "Period Name"])
 
        for publisher,view,visit in _get_top_publishers(None):
            writer.writerow([publisher.title.encode('utf-8'),
                             publisher.name.encode('utf-8'),
                             view,
                             visit,
                             month])
 
    def dataset_csv(self, id='all', month='all'):
        '''
        Returns a CSV with the number of views & visits for each dataset.
 
        :param id: A Publisher ID or None if you want for all
        :param month: The time period, or 'all'
        '''
        c.month = month if not month == 'all' else ''
        if id != 'all':
            c.publisher = model.Group.get(id)
            if not c.publisher:
                abort(404, 'A publisher with that name could not be found')
 
        packages = self._get_packages(c.publisher)
        response.headers['Content-Type'] = "text/csv; charset=utf-8"
        response.headers['Content-Disposition'] = \
            str('attachment; filename=datasets_%s_%s.csv' % (c.publisher_name, month,))
 
        writer = csv.writer(response)
        writer.writerow(["Dataset Title", "Dataset Name", "Views", "Visits", "Period Name"])
 
        for package,view,visit in packages:
            writer.writerow([package.title.encode('utf-8'),
                             package.name.encode('utf-8'),
                             view,
                             visit,
                             month])
 
    def publishers(self):
        '''A list of publishers and the number of views/visits for each'''
 
        # Get the month details by fetching distinct values and determining the
        # month names from the values.
        c.months = _month_details(GA_Url)
 
        # Work out which month to show, based on query params of the first item
        c.month = request.params.get('month', '')
        c.month_desc = 'all months'
        if c.month:
            c.month_desc = ''.join([m[1] for m in c.months if m[0]==c.month])
 
        c.top_publishers = _get_top_publishers()
 
        return render('ga_report/publisher/index.html')
 
    def _get_packages(self, publisher=None, count=-1):
        '''Returns the datasets in order of visits'''
        if count == -1:
            count = sys.maxint
 
        q = model.Session.query(GA_Url)\
            .filter(GA_Url.url.like('/dataset/%'))
        if publisher:
            q = q.filter(GA_Url.department_id==publisher.name)
        if c.month:
            q = q.filter(GA_Url.period_name==c.month)
        q = q.order_by('ga_url.visitors::int desc')
 
        if c.month:
            top_packages = []
            for entry in q.limit(count):
                package_name = entry.url[len('/dataset/'):]
                p = model.Package.get(package_name)
                if p:
                    top_packages.append((p, entry.pageviews, entry.visitors))
                else:
                    log.warning('Could not find package "%s"', package_name)
        else:
            ds = {}
            for entry in q.limit(count):
                package_name = entry.url[len('/dataset/'):]
                p = model.Package.get(package_name)
                if p:
                    if not p in ds:
                        ds[p] = {'views': 0, 'visits': 0}
                    ds[p]['views'] = ds[p]['views'] + int(entry.pageviews)
                    ds[p]['visits'] = ds[p]['visits'] + int(entry.visitors)
                else:
                    log.warning('Could not find package "%s"', package_name)
 
            results = []
            for k, v in ds.iteritems():
                results.append((k,v['views'],v['visits']))
 
            top_packages = sorted(results, key=operator.itemgetter(1), reverse=True)
        return top_packages
 
    def read(self):
        '''
        Lists the most popular datasets across all publishers
        '''
        return self.read_publisher(None)
 
    def read_publisher(self, id):
        '''
        Lists the most popular datasets for a publisher (or across all publishers)
        '''
        count = 20
 
        c.publishers = _get_publishers()
 
        id = request.params.get('publisher', id)
        if id and id != 'all':
            c.publisher = model.Group.get(id)
            if not c.publisher:
                abort(404, 'A publisher with that name could not be found')
            c.publisher_name = c.publisher.name
        c.top_packages = [] # package, dataset_views in c.top_packages
 
        # Get the month details by fetching distinct values and determining the
        # month names from the values.
        c.months = _month_details(GA_Url)
 
        # Work out which month to show, based on query params of the first item
        c.month = request.params.get('month', '')
        if not c.month:
            c.month_desc = 'all months'
        else:
            c.month_desc = ''.join([m[1] for m in c.months if m[0]==c.month])
 
        c.publisher_page_views = 0
        q = model.Session.query(GA_Url).\
            filter(GA_Url.url=='/publisher/%s' % c.publisher_name)
        if c.month:
            entry = q.filter(GA_Url.period_name==c.month).first()
            c.publisher_page_views = entry.pageviews if entry else 0
        else:
            for e in q.all():
                c.publisher_page_views = c.publisher_page_views  + int(e.pageviews)
 
        c.top_packages = self._get_packages(c.publisher, 20)
 
        return render('ga_report/publisher/read.html')
 
def _get_top_publishers(limit=20):
    '''
    Returns a list of the top 20 publishers by dataset visits.
    (The number to show can be varied with 'limit')
    '''
    connection = model.Session.connection()
    q = """
        select department_id, sum(pageviews::int) views, sum(visitors::int) visits
        from ga_url
        where department_id <> ''"""
    if c.month:
        q = q + """
                and period_name=%s
        """
    q = q + """
            group by department_id order by visits desc
        """
    if limit:
        q = q + " limit %s;" % (limit)
 
    # Add this back (before and period_name =%s) if you want to ignore publisher
    # homepage views
    # and not url like '/publisher/%%'
 
    top_publishers = []
    res = connection.execute(q, c.month)
 
    for row in res:
        g = model.Group.get(row[0])
        if g:
            top_publishers.append((g, row[1], row[2]))
    return top_publishers
 
def _get_publishers():
    '''
    Returns a list of all publishers. Each item is a tuple:
      (names, title)
    '''
    publishers = []
    for pub in model.Session.query(model.Group).\
               filter(model.Group.type=='publisher').\
               filter(model.Group.state=='active').\
               order_by(model.Group.name):
        publishers.append((pub.name, pub.title))
    return publishers
 
def _percent(num, total):
    p = 100 * float(num)/float(total)
    return "%.2f%%" % round(p, 2)