Merge branch '601_convert_created_utc_to_timestamp_for_commentflags' into 601_convert_created_utc_to_timestamp_for_commentvotes

This commit is contained in:
Viet Than 2023-07-20 21:07:10 -04:00
commit 32cd11bd07
5 changed files with 139 additions and 50 deletions

View file

@ -1,9 +1,11 @@
import time
from datetime import datetime, timedelta, timezone
from sqlalchemy import text
from sqlalchemy.orm import declarative_base, declared_attr
from sqlalchemy.schema import Column
from sqlalchemy.sql.sqltypes import Integer
from sqlalchemy.sql.functions import now
from sqlalchemy.sql.sqltypes import Integer, DateTime
from files.helpers.time import format_age, format_datetime
@ -45,3 +47,82 @@ class CreatedBase(Base):
@property
def age_string(self) -> str:
return format_age(self.created_utc)
class CreatedDateTimeBase(Base):
"""
An abstract class extending our default SQLAlchemy's `Base`.
All classes inherit from this class automatically maps a `created_datetimez` column
for the corresponding SQL table. This column will automatically record the created
timestamp of rows. Retrieving `created_datetimez` will return a `datetime` object with
`tzinfo` of UTC.
This class holds various convenience properties to get `created_datetimez` in different
formats.
"""
__abstract__ = True
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
@declared_attr
def created_datetimez(self):
"""
Declare default column for classes/tables inheriting `CreatedDateTimeBase`.
Retrieving `created_datetimez` will return a `datetime` object with `tzinfo` for UTC.
"""
return Column(DateTime(timezone=True), nullable=False, server_default=now())
@property
def created_utc(self):
"""
the created date in UTC seconds. Milliseconds are truncated/rounded down.
"""
return int(self.created_datetimez.timestamp())
@property
def created_date(self) -> str:
"""
the created date in string.
See `file.helpers.time.DATETIME_FORMAT` for the exact format
Note: should this be using `format_date` and not `format_datetime`?
"""
return self.created_datetime
@property
def created_datetime(self) -> str:
"""
the created datetime in string.
See `file.helpers.time.DATETIME_FORMAT` for the exact format.
"""
return format_datetime(self.created_datetimez)
@property
def created_datetime_py(self) -> datetime:
"""
the created datetime as a `datetime` object with `tzinfo` of UTC.
"""
return self.created_datetimez
@property
def age_seconds(self) -> int:
"""
number of seconds since created.
"""
return time.time() - self.created_utc
@property
def age_timedelta(self) -> timedelta:
"""
a `timedelta` object representing time since created.
"""
return datetime.now(tz=timezone.utc) - self.created_datetimez
@property
def age_string(self) -> str:
"""
a string representing time since created. Example: "1h ago", "2d ago".
"""
return format_age(self.created_datetimez)

View file

@ -71,7 +71,7 @@ class Comment(CreatedBase):
viewonly=True)
reports = relationship("CommentFlag",
primaryjoin="CommentFlag.comment_id == Comment.id",
order_by="CommentFlag.created_utc",
order_by="CommentFlag.created_datetimez",
viewonly=True)
notes = relationship("UserNote", back_populates="comment")

View file

@ -1,9 +1,11 @@
from sqlalchemy import *
from sqlalchemy.orm import relationship
from files.classes.base import CreatedBase
from files.classes.base import CreatedBase, CreatedDateTimeBase, Base
from files.helpers.lazy import lazy
from files.helpers.config.const import *
class Flag(CreatedBase):
__tablename__ = "flags"
@ -24,14 +26,13 @@ class Flag(CreatedBase):
return self.reason
class CommentFlag(CreatedBase):
class CommentFlag(CreatedDateTimeBase):
__tablename__ = "commentflags"
id = Column(Integer, primary_key=True)
comment_id = Column(Integer, ForeignKey("comments.id"), nullable=False)
user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
reason = Column(String)
created_timestampz = Column(TIMESTAMP(timezone=True), nullable=False, server_default=text("now()"))
Index('cflag_user_idx', user_id)

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@ -0,0 +1,52 @@
"""Change created_utc to datetimez for commentflags
Revision ID: 7ae4658467d7
Revises: ea282d7c711c
Create Date: 2023-07-09 21:52:50.386177+00:00
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '7ae4658467d7'
down_revision = 'ea282d7c711c'
branch_labels = None
depends_on = None
table_name = 'commentflags'
from_column = 'created_utc'
to_column = 'created_datetimez'
def upgrade():
op.add_column(table_name, sa.Column(to_column, sa.DateTime(timezone=True), nullable=True, server_default=sa.text('NOW()')))
op.execute(f"""
UPDATE {table_name}
SET {to_column} =
CASE
WHEN {from_column} > 0 THEN
(timestamp 'epoch' + {from_column} * interval '1 second') at time zone 'utc'
ELSE NULL
END
""")
op.alter_column(table_name, to_column, nullable=False)
op.drop_column(table_name, from_column)
def downgrade():
"""
Downgrade will truncate the milliseconds.
"""
op.add_column(table_name, sa.Column('created_utc', sa.INTEGER(), server_default=sa.text('0'), nullable=True))
op.execute(f"""
UPDATE {table_name}
SET created_utc =
COALESCE(
EXTRACT(EPOCH FROM {to_column})::integer,
0
)
""")
op.alter_column(table_name, from_column, nullable=False)
op.drop_column(table_name, to_column)

View file

@ -1,45 +0,0 @@
"""Change created_utc to timestampz for commentflags
Revision ID: 7ae4658467d7
Revises: ea282d7c711c
Create Date: 2023-07-09 21:52:50.386177+00:00
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '7ae4658467d7'
down_revision = 'ea282d7c711c'
branch_labels = None
depends_on = None
def upgrade():
op.add_column('commentflags', sa.Column('created_timestampz', sa.TIMESTAMP(timezone=True), nullable=False, server_default=sa.text('NOW()')))
op.execute("""
UPDATE commentflags
SET created_timestampz =
CASE
WHEN created_utc > 0 THEN
(timestamp 'epoch' + created_utc * interval '1 second') at time zone 'utc'
ELSE NULL
END
""")
op.drop_column('commentflags', 'created_utc')
def downgrade():
op.add_column('commentflags', sa.Column('created_utc', sa.INTEGER(), server_default=sa.text('0'), nullable=True))
op.execute("""
UPDATE commentflags
SET created_utc =
COALESCE(
EXTRACT(EPOCH FROM created_timestampz)::integer,
0
)
""")
op.alter_column('commentflags', 'created_utc', nullable=False)
op.drop_column('commentflags', 'created_timestampz')