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models.py
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models.py
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#!/usr/bin/env python3
# SPDX-FileCopyrightText: 2022 Agathe Porte <microjoe@microjoe.org>
#
# SPDX-License-Identifier: MIT
from xmlrpc.client import Boolean, DateTime
from sqlalchemy import Column, Integer, String, ForeignKey, Boolean, DateTime
import sqlalchemy
from sqlalchemy.orm import registry, relationship
mapper_registry = registry()
@mapper_registry.mapped
class Palette:
__tablename__ = "palette"
hashtag = Column(String, primary_key=True)
lospec_id = Column(String)
likes = Column(Integer)
downloads = Column(Integer)
# featured = Column(Boolean)
# comments = relationship(...)
title = Column(String, nullable=False)
description = Column(String)
creator = Column(Boolean)
slug = Column(String)
published_at = Column(DateTime)
# user = relationship(...)
number_of_colors = Column(Integer)
created_at = Column(DateTime)
is_new = Column(Boolean)
# sort_newest = Column(DateTime)
# examples = relationship(...)
colors = Column(String) # comma-separated hex values
tags = relationship("Tag", back_populates="palette")
@mapper_registry.mapped
class Tag:
__tablename__ = "tag"
id = Column(Integer, primary_key=True)
palette_hashtag = Column(String, ForeignKey("palette.hashtag"))
name = Column(String)
palette = relationship("Palette", back_populates="tags")
def create_db_memory(echo=False):
from sqlalchemy import create_engine
engine = create_engine("sqlite+pysqlite:///:memory:", echo=echo, future=True)
mapper_registry.metadata.create_all(engine)
return engine
def create_db(echo=False):
from sqlalchemy import create_engine
engine = create_engine(
f"sqlite+pysqlite:///lospec-palettes.sqlite", echo=echo, future=True
)
mapper_registry.metadata.create_all(engine)
return engine
def import_palette(session, path):
import json
with path.open() as f:
doc = json.load(f)
assert doc["hashtag"] == path.stem
print(f"IMPORT {path.stem}")
from dateutil.parser import isoparse
tmp = dict(
hashtag=doc["hashtag"],
lospec_id=doc["_id"],
likes=doc["likes"],
title=doc["title"],
description=doc["description"],
creator=bool(doc.get("creator")), # sometimes, creator=1
slug=doc["slug"],
published_at=isoparse(doc["publishedAt"]),
number_of_colors=doc["numberOfColors"],
created_at=isoparse(doc["createdAt"]),
is_new=doc["isNew"],
downloads=int(doc["downloads"].replace(",", ""))
# sort_newest=doc["sortNewest"],
)
try:
obj = Palette(**tmp)
obj.colors = ",".join(doc["colors"])
for t in doc["tags"]:
obj.tags.append(Tag(name=t))
session.merge(obj)
except sqlalchemy.exc.StatementError:
import pprint
pprint.pprint(tmp)
raise
def populate_db(engine, sample=False):
from sqlalchemy.orm import Session
from pathlib import Path
session = Session(engine)
for path in Path("./palettes").glob("**/*.json"):
import_palette(session, path)
if sample:
break
session.commit()
if __name__ == "__main__":
engine = create_db()
populate_db(engine)