def build_short_dict(self):
""" Build the short dict. If everything is working, this method should not make a single
database call."""
item_cache_key = "_%s_dict_%s_" % (
self.content_type.model_class().item_name, "%s")
object_dict = get_dictionary_with_cache_priority(
item_cache_key, self.content_type.model_class(), self.object_pk,
"get_short_dict")
album_cache_key = "_album_dict_%s_"
album_dict = get_dictionary_with_cache_priority(
album_cache_key, "mwa.Album", object_dict["album_id"],
"get_short_dict")
return {
"comment": self.comment,
"id": self.id,
"likes_count": self.get_likes_count(),
"object": {
"id": self.object_pk,
"type": self.content_type.model_class().item_type,
"owner_id": object_dict["owner_id"]
},
"submit_date": self.submit_date.isoformat(),
"user": self.get_owner_dict(),
"album": {
"id": album_dict["id"],
"owner_id": album_dict["owner_id"],
}
}
def build_short_dict(self):
""" Build the short dict. If everything is working, this method should not make a single
database call."""
item_cache_key = "_%s_dict_%s_" % (self.content_type.model_class().item_name, "%s")
object_dict = get_dictionary_with_cache_priority(
item_cache_key,
self.content_type.model_class(),
self.object_pk,
"get_short_dict"
)
album_cache_key = "_album_dict_%s_"
album_dict = get_dictionary_with_cache_priority(
album_cache_key,
"mwa.Album",
object_dict["album_id"],
"get_short_dict"
)
return {
"comment": self.comment,
"id": self.id,
"likes_count": self.get_likes_count(),
"object": {
"id": self.object_pk,
"type": self.content_type.model_class().item_type,
"owner_id": object_dict["owner_id"]
},
"submit_date": self.submit_date.isoformat(),
"user": self.get_owner_dict(),
"album": {
"id": album_dict["id"],
"owner_id": album_dict["owner_id"],
}
}
def get_like_list(self, user, skip_permission_check=False):
from myproject.like.models import Like
"""
Get a list of likes for this comment. If the user has no read permission, get None.
@user: The user whose point of view will be used when fetching likes.
@skip_permission_check: If you already checked the permissions, set this to True in order
to avoid a redundant database call.
This method builds the like list manually, meaning likes themselves are not cached. Therefore
there might be a lot of cache calls in this method. Change it if it effects performance.
"""
if not skip_permission_check:
item_cache_key = "_%s_dict_%s_" % (self.content_type.model_class().item_name, "%s")
object_dict = get_dictionary_with_cache_priority(
item_cache_key,
self.content_type.model_class(),
self.object_pk,
"get_short_dict"
)
album_dict = get_dictionary_with_cache_priority(
"_album_dict_%d_",
"mwa.Album",
object_dict["album_id"],
"get_short_dict"
)
privacy = album_dict.pop("privacy")
# If the user is not the owner or anonymous, this method launches a query
status = self.get_user_status(user, privacy, album_dict["owner_id"])
if privacy[status] & settings.PERMISSIONS["read"] == 0:
# User cannot read this item, return None
return False
# one query here
likes = Like.objects.filter(
resource_type=3,
resource_id=self.pk,
).only("id", "user")
item_dict = {
"type": 3,
"id": self.id,
"owner_id": self.user_id
}
like_list = []
for l in likes:
liker_dict = get_dictionary_with_cache_priority(
"_user_%d_owner_dict_",
get_user_model(),
l.user_id,
"get_owner_dict",
expected_field_list=["first_name", "last_name"]
)
t_dict = {
"user": liker_dict,
"item": item_dict,
"id": l.id,
"can_delete": user.id == l.user_id
}
like_list.append(t_dict)
return like_list
def get_like_list(self, user, skip_permission_check=False):
from myproject.like.models import Like
"""
Get a list of likes for this comment. If the user has no read permission, get None.
@user: The user whose point of view will be used when fetching likes.
@skip_permission_check: If you already checked the permissions, set this to True in order
to avoid a redundant database call.
This method builds the like list manually, meaning likes themselves are not cached. Therefore
there might be a lot of cache calls in this method. Change it if it effects performance.
"""
if not skip_permission_check:
item_cache_key = "_%s_dict_%s_" % (
self.content_type.model_class().item_name, "%s")
object_dict = get_dictionary_with_cache_priority(
item_cache_key, self.content_type.model_class(),
self.object_pk, "get_short_dict")
album_dict = get_dictionary_with_cache_priority(
"_album_dict_%d_", "mwa.Album", object_dict["album_id"],
"get_short_dict")
privacy = album_dict.pop("privacy")
# If the user is not the owner or anonymous, this method launches a query
status = self.get_user_status(user, privacy,
album_dict["owner_id"])
if privacy[status] & settings.PERMISSIONS["read"] == 0:
# User cannot read this item, return None
return False
# one query here
likes = Like.objects.filter(
resource_type=3,
resource_id=self.pk,
).only("id", "user")
item_dict = {"type": 3, "id": self.id, "owner_id": self.user_id}
like_list = []
for l in likes:
liker_dict = get_dictionary_with_cache_priority(
"_user_%d_owner_dict_",
get_user_model(),
l.user_id,
"get_owner_dict",
expected_field_list=["first_name", "last_name"])
t_dict = {
"user": liker_dict,
"item": item_dict,
"id": l.id,
"can_delete": user.id == l.user_id
}
like_list.append(t_dict)
return like_list
