def _mappers_configured():
event_alias = db.aliased(Event)
# Event.category_chain -- the category ids of the event, starting
# with the root category down to the event's immediate parent.
cte = Category.get_tree_cte()
query = select([cte.c.path]).where(
cte.c.id == Event.category_id).correlate_except(cte).scalar_subquery()
Event.category_chain = column_property(query, deferred=True)
# Event.detailed_category_chain -- the category chain of the event, starting
# with the root category down to the event's immediate parent.
cte = Category.get_tree_cte(lambda cat: db.func.json_build_object(
'id', cat.id, 'title', cat.title))
query = select([cte.c.path]).where(
cte.c.id == Event.category_id).correlate_except(cte).scalar_subquery()
Event.detailed_category_chain = column_property(query, deferred=True)
# Event.effective_protection_mode -- the effective protection mode
# (public/protected) of the event, even if it's inheriting it from its
# parent category
query = (select([
db.case(
{
ProtectionMode.inheriting.value:
Category.effective_protection_mode
},
else_=Event.protection_mode,
value=Event.protection_mode)
]).where(
Category.id == Event.category_id).correlate(Event).scalar_subquery())
Event.effective_protection_mode = column_property(query, deferred=True)
# Event.series_pos -- the position of the event in its series
subquery = (select([
event_alias.id,
db.func.row_number().over(order_by=(event_alias.start_dt,
event_alias.id)).label('pos')
]).where((event_alias.series_id == Event.series_id)
& ~event_alias.is_deleted).correlate(Event).alias())
query = select([subquery.c.pos
]).where(subquery.c.id == Event.id).correlate_except(
subquery).scalar_subquery()
Event.series_pos = column_property(query, group='series', deferred=True)
# Event.series_count -- the number of events in the event's series
query = (db.select([db.func.count(event_alias.id)
]).where((event_alias.series_id == Event.series_id)
& ~event_alias.is_deleted).correlate_except(
event_alias).scalar_subquery())
Event.series_count = column_property(query, group='series', deferred=True)
# Event.contributions_count -- the number of contributions in the event
from indico.modules.events.contributions.models.contributions import Contribution
query = (db.select([db.func.count(Contribution.id)
]).where((Contribution.event_id == Event.id)
& ~Contribution.is_deleted).correlate_except(
Contribution).scalar_subquery())
Event.contributions_count = db.column_property(query, deferred=True)
def _mappers_configured():
event_alias = db.aliased(Event)
# Event.category_chain -- the category ids of the event, starting
# with the root category down to the event's immediate parent.
cte = Category.get_tree_cte()
query = select([cte.c.path]).where(cte.c.id == Event.category_id).correlate_except(cte)
Event.category_chain = column_property(query, deferred=True)
# Event.effective_protection_mode -- the effective protection mode
# (public/protected) of the event, even if it's inheriting it from its
# parent category
query = (select([db.case({ProtectionMode.inheriting.value: Category.effective_protection_mode},
else_=Event.protection_mode, value=Event.protection_mode)])
.where(Category.id == Event.category_id))
Event.effective_protection_mode = column_property(query, deferred=True)
# Event.series_pos -- the position of the event in its series
subquery = (select([event_alias.id,
db.func.row_number().over(order_by=(event_alias.start_dt, event_alias.id)).label('pos')])
.where((event_alias.series_id == Event.series_id) & ~event_alias.is_deleted)
.correlate(Event)
.alias())
query = select([subquery.c.pos]).where(subquery.c.id == Event.id).correlate_except(subquery)
Event.series_pos = column_property(query, group='series', deferred=True)
# Event.series_count -- the number of events in the event's series
query = (db.select([db.func.count(event_alias.id)])
.where((event_alias.series_id == Event.series_id) & ~event_alias.is_deleted)
.correlate_except(event_alias))
Event.series_count = column_property(query, group='series', deferred=True)
def _mappers_configured():
event_alias = db.aliased(Event)
# Event.category_chain -- the category ids of the event, starting
# with the root category down to the event's immediate parent.
cte = Category.get_tree_cte()
query = select([cte.c.path]).where(cte.c.id == Event.category_id).correlate_except(cte)
Event.category_chain = column_property(query, deferred=True)
# Event.effective_protection_mode -- the effective protection mode
# (public/protected) of the event, even if it's inheriting it from its
# parent category
query = (select([db.case({ProtectionMode.inheriting.value: Category.effective_protection_mode},
else_=Event.protection_mode, value=Event.protection_mode)])
.where(Category.id == Event.category_id))
Event.effective_protection_mode = column_property(query, deferred=True)
# Event.series_pos -- the position of the event in its series
subquery = (select([event_alias.id,
db.func.row_number().over(order_by=(event_alias.start_dt, event_alias.id)).label('pos')])
.where((event_alias.series_id == Event.series_id) & ~event_alias.is_deleted)
.correlate(Event)
.alias())
query = select([subquery.c.pos]).where(subquery.c.id == Event.id).correlate_except(subquery)
Event.series_pos = column_property(query, group='series', deferred=True)
# Event.series_count -- the number of events in the event's series
query = (db.select([db.func.count(event_alias.id)])
.where((event_alias.series_id == Event.series_id) & ~event_alias.is_deleted)
.correlate_except(event_alias))
Event.series_count = column_property(query, group='series', deferred=True)
def is_visible_in(cls, category):
"""
Create a filter that checks whether the event is visible in
the specified category.
"""
cte = category.visible_categories_cte
return (db.exists(db.select([1]))
.where(db.and_(cte.c.id == Event.category_id,
db.or_(Event.visibility.is_(None), Event.visibility > cte.c.level))))
def is_visible_in(cls, category_id):
"""
Create a filter that checks whether the event is visible in
the specified category.
"""
cte = Category.get_visible_categories_cte(category_id)
return (db.exists(db.select([1]))
.where(db.and_(cte.c.id == Event.category_id,
db.or_(Event.visibility.is_(None), Event.visibility > cte.c.level))))
