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import sqlite3
from datetime import datetime
import re
import inflection
import markdown
def bootstrap_db(db):
with open("schema.sql", "rt") as fd:
schema = fd.read()
con = sqlite3.connect(db)
cur = con.cursor()
cur.executescript(schema)
con.commit()
cur.close()
con.close()
class Page(object):
def __init__(
self,
name="WikiHome",
version=None,
content="",
changelog=None,
updated_at=None,
history=False,
):
now = datetime.utcnow()
if updated_at is None:
updated_at = now
self.name = name
self.version = version
self.content = content
self.changelog = changelog
self.updated_at = updated_at
self.history = history
def render(self):
return markdown.markdown(self.content)
def validate(self):
if self.name != inflection.camelize(self.name):
raise ValueError("Invalid page name, must be CamelCase")
@property
def title(self):
pretty = inflection.titleize(self.name)
if self.history:
pretty = f"{pretty} (history)"
return pretty
class History(object):
def __init__(self, version, changelog, updated_at):
self.version = version
self.changelog = changelog
self.updated_at = updated_at
def get_page(db, name, version=None):
cur = db.cursor()
if version:
cur.execute(
"SELECT name, version, content, changelog, updated_at"
" FROM pages"
" WHERE name = :name AND version = :version",
dict(name=name, version=version),
)
else:
cur.execute(
"SELECT name, version, content, changelog, updated_at"
" FROM pages"
" WHERE name = :name ORDER BY updated_at DESC LIMIT 1",
dict(name=name),
)
row = cur.fetchone()
cur.close()
if row:
return Page(*row, history=version is not None)
else:
return Page(name=name)
def save_page(db, page):
cur = db.cursor()
cur.execute(
"INSERT INTO pages"
" VALUES(:name, :version, :content, :changelog, :updated_at)",
dict(
name=page.name,
version=page.version,
content=page.content,
changelog=page.changelog,
updated_at=page.updated_at,
),
)
db.commit()
cur.close()
def get_page_history(db, name):
cur = db.cursor()
cur.execute(
"SELECT version, changelog, updated_at"
" FROM pages"
" WHERE name = :name ORDER BY updated_at DESC",
dict(name=name),
)
rows = cur.fetchall()
cur.close()
if rows:
return [History(*r) for r in rows]
|
