Fix total datasets
[ckanext-dga-stats.git] / ckanext / dga_stats / stats.py




Alex Sadleir



























Alex Sadleir












Alex Sadleir













CKAN data.gov.au


Alex Sadleir







CKAN data.gov.au

Alex Sadleir
CKAN data.gov.au

Alex Sadleir









Alex Sadleir

























CKAN data.gov.au










Alex Sadleir



Alex Sadleir
Alex Sadleir









Alex Sadleir





Alex Sadleir









Alex Sadleir




































































CKAN data.gov.au
Alex Sadleir


























Alex Sadleir
































































































































































Alex Sadleir

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import datetime
 
from pylons import config
from sqlalchemy import Table, select, func, and_
from sqlalchemy.sql.expression import text
 
import ckan.plugins as p
import ckan.model as model
 
cache_enabled = p.toolkit.asbool(config.get('ckanext.stats.cache_enabled', 'True'))
 
if cache_enabled:
    from pylons import cache
    our_cache = cache.get_cache('stats', type='dbm')
 
DATE_FORMAT = '%Y-%m-%d'
 
def table(name):
    return Table(name, model.meta.metadata, autoload=True)
 
def datetime2date(datetime_):
    return datetime.date(datetime_.year, datetime_.month, datetime_.day)
 
 
class Stats(object):
    @classmethod
    def top_rated_packages(cls, limit=10):
        # NB Not using sqlalchemy as sqla 0.4 doesn't work using both group_by
        # and apply_avg
        package = table('package')
        rating = table('rating')
        sql = select([package.c.id, func.avg(rating.c.rating), func.count(rating.c.rating)], from_obj=[package.join(rating)]).\
              where(package.c.private == 'f').\
              group_by(package.c.id).\
              order_by(func.avg(rating.c.rating).desc(), func.count(rating.c.rating).desc()).\
              limit(limit)
        res_ids = model.Session.execute(sql).fetchall()
        res_pkgs = [(model.Session.query(model.Package).get(unicode(pkg_id)), avg, num) for pkg_id, avg, num in res_ids]
        return res_pkgs
 
    @classmethod
    def most_edited_packages(cls, limit=10):
        package_revision = table('package_revision')
        package = table('package')
        s = select([package_revision.c.id, func.count(package_revision.c.revision_id)], from_obj=[package_revision.join(package)]).\
            where(package.c.private == 'f').\
            group_by(package_revision.c.id).\
            order_by(func.count(package_revision.c.revision_id).desc()).\
            limit(limit)
        res_ids = model.Session.execute(s).fetchall()
        res_pkgs = [(model.Session.query(model.Package).get(unicode(pkg_id)), val) for pkg_id, val in res_ids]
        return res_pkgs
 
    @classmethod
    def largest_groups(cls, limit=10):
         member = table('member')
         s = select([member.c.group_id, func.count(member.c.table_id)]).\
            group_by(member.c.group_id).\
            where(and_(member.c.group_id!=None, member.c.table_name=='package')).\
            order_by(func.count(member.c.table_id).desc())
            #limit(limit)
 
         res_ids = model.Session.execute(s).fetchall()
         res_groups = [(model.Session.query(model.Group).get(unicode(group_id)), val) for group_id, val in res_ids]
         return res_groups
 
    @classmethod
    def by_org(cls, limit=10):
        group = table('group')
        package = table('package')
        s = select([group.c.id, package.c.private, func.count('*')], group_by=[group.c.id, package.c.private]).\
            where(group.c.is_organization == True).\
            group_by(group.c.id, package.c.private).\
            order_by(group.c.name)
            #limit(limit)
 
        res_ids = model.Session.execute(s).fetchall()
        res_groups = [(model.Session.query(model.Group).get(unicode(group_id)), private, val) for group_id, private, val in res_ids]
        return res_groups
 
    @classmethod
    def top_tags(cls, limit=10, returned_tag_info='object'): # by package
        assert returned_tag_info in ('name', 'id', 'object')
        tag = table('tag')
        package_tag = table('package_tag')
        package = table('package')
        #TODO filter out tags with state=deleted
        if returned_tag_info == 'name':
            from_obj = [package_tag.join(tag)]
            tag_column = tag.c.name
        else:
            from_obj = None
            tag_column = package_tag.c.tag_id
        s = select([tag_column, func.count(package_tag.c.package_id)],
                    from_obj=from_obj)
        s = s.group_by(tag_column).\
              where(package.c.private == 'f').\
            order_by(func.count(package_tag.c.package_id).desc()).\
            limit(limit)
        res_col = model.Session.execute(s).fetchall()
        if returned_tag_info in ('id', 'name'):
            return res_col
        elif returned_tag_info == 'object':
            res_tags = [(model.Session.query(model.Tag).get(unicode(tag_id)), val) for tag_id, val in res_col]
            return res_tags
 
    @classmethod
    def top_package_owners(cls, limit=10):
        package_role = table('package_role')
        user_object_role = table('user_object_role')
        package = table('package')
        s = select([user_object_role.c.user_id, func.count(user_object_role.c.role)], from_obj=[user_object_role.join(package_role).join(package, package_role.c.package_id == package.c.id)]).\
            where(user_object_role.c.role==model.authz.Role.ADMIN).\
            where(package.c.private == 'f').\
            where(user_object_role.c.user_id!=None).\
            group_by(user_object_role.c.user_id).\
            order_by(func.count(user_object_role.c.role).desc()).\
            limit(limit)
        res_ids = model.Session.execute(s).fetchall()
        res_users = [(model.Session.query(model.User).get(unicode(user_id)), val) for user_id, val in res_ids]
        return res_users
 
    @classmethod
    def summary_stats(cls):
       connection = model.Session.connection()
 
#                               select 'Total Archived Datasets', count(*) from package where (state='active' or state='draft' or state='draft-complete') and private = 't' union \
       res = connection.execute("SELECT 'Total Organisations', count(*) from \"group\" where type = 'organization' and state = 'active' union \
                                select 'Total Datasets', count(*) from package where (state='active' or state='draft' or state='draft-complete') and private = 'f' union \
                                select 'Total Data Files/Resources', count(*) from resource where state='active'").fetchall();
       return res
 
 
    @classmethod
    def activity_counts(cls):
       connection = model.Session.connection()
       res = connection.execute("select to_char(timestamp, 'YYYY-MM') as month,activity_type, count(*) from activity group by month, activity_type order by month;").fetchall();
       return res
 
    @classmethod
    def user_access_list(cls):
       connection = model.Session.connection()
       res = connection.execute("select name,sysadmin,role from user_object_role right outer join \"user\" on user_object_role.user_id = \"user\".id where name not in ('logged_in','visitor') group by name,sysadmin,role order by sysadmin desc, role asc;").fetchall();
       return res
 
    @classmethod
    def recent_datasets(cls):
        activity = table('activity')
        package = table('package')
        s = select([func.max(activity.c.timestamp),package.c.id, activity.c.activity_type], from_obj=[activity.join(package,activity.c.object_id == package.c.id)]).where(package.c.private == 'f').\
            where(activity.c.timestamp > func.now() - text("interval '60 day'")).group_by(package.c.id,activity.c.activity_type).order_by(func.max(activity.c.timestamp))
        result = model.Session.execute(s).fetchall()
        return [(datetime2date(timestamp), model.Session.query(model.Package).get(unicode(package_id)), activity_type) for timestamp,package_id,activity_type in result]
 
 
 
class RevisionStats(object):
    @classmethod
    def package_addition_rate(cls, weeks_ago=0):
        week_commenced = cls.get_date_weeks_ago(weeks_ago)
        return cls.get_objects_in_a_week(week_commenced,
                                          type_='package_addition_rate')
 
    @classmethod
    def package_revision_rate(cls, weeks_ago=0):
        week_commenced = cls.get_date_weeks_ago(weeks_ago)
        return cls.get_objects_in_a_week(week_commenced,
                                          type_='package_revision_rate')
 
    @classmethod
    def get_date_weeks_ago(cls, weeks_ago):
        '''
        @param weeks_ago: specify how many weeks ago to give count for
                          (0 = this week so far)
        '''
        date_ = datetime.date.today()
        return date_ - datetime.timedelta(days=
                             datetime.date.weekday(date_) + 7 * weeks_ago)
 
    @classmethod
    def get_week_dates(cls, weeks_ago):
        '''
        @param weeks_ago: specify how many weeks ago to give count for
                          (0 = this week so far)
        '''
        package_revision = table('package_revision')
        revision = table('revision')
        today = datetime.date.today()
        date_from = datetime.datetime(today.year, today.month, today.day) -\
                    datetime.timedelta(days=datetime.date.weekday(today) + \
                                       7 * weeks_ago)
        date_to = date_from + datetime.timedelta(days=7)
        return (date_from, date_to)
 
    @classmethod
    def get_date_week_started(cls, date_):
        assert isinstance(date_, datetime.date)
        if isinstance(date_, datetime.datetime):
            date_ = datetime2date(date_)
        return date_ - datetime.timedelta(days=datetime.date.weekday(date_))
 
    @classmethod
    def get_package_revisions(cls):
        '''
        @return: Returns list of revisions and date of them, in
                 format: [(id, date), ...]
        '''
        package_revision = table('package_revision')
        revision = table('revision')
        s = select([package_revision.c.id, revision.c.timestamp], from_obj=[package_revision.join(revision)]).order_by(revision.c.timestamp)
        res = model.Session.execute(s).fetchall() # [(id, datetime), ...]
        return res
 
    @classmethod
    def get_new_packages(cls):
        '''
        @return: Returns list of new pkgs and date when they were created, in
                 format: [(id, date_ordinal), ...]
        '''
        def new_packages():
            # Can't filter by time in select because 'min' function has to
            # be 'for all time' else you get first revision in the time period.
            package_revision = table('package_revision')
            revision = table('revision')