async def clear():
result = Q().woql_and(
Q().triple('v:Doc', 'completed',
Q().literal(True, 'boolean')),
Q().triple('v:Doc', 'v:Predicate', 'v:Object'),
Q().delete_triple('v:Doc', 'v:Predicate', 'v:Object')).execute(DB)
return {"result": result}
async def state():
result = Q().woql_and(Q().triple("v:Doc", "type", "scm:Todo"),
Q().triple("v:Doc", "scm:title", "v:Title"),
Q().triple("v:Doc", "scm:completed",
"v:Completed")).execute(DB)
bindings = result["bindings"]
todos = []
for item in bindings:
ID = item["Doc"].split("///data/")[1]
todos.append({
"id": ID,
"title": item["Title"]["@value"],
"completed": item["Completed"]["@value"],
"links": {
"todo": f"/todo/{ID}",
"remove": f"/todo/{ID}/remove",
"title": f"/todo/{ID}/title",
"completed": f"/todo/{ID}/completed"
}
})
state = {
"todos": todos,
"links": {
"toggle": f"/todo/toggle",
"clear": f"/todo/clear",
}
}
return state
async def completed(ID: str, data: TodoCompleted):
result = Q().woql_and(
Q().triple(ID, 'completed', not data.value),
Q().delete_triple(ID, 'completed', not data.value),
Q().add_triple(ID, 'completed',
Q().literal(data.value, 'boolean'))).execute(DB)
return {"id": ID, "value": data.value, "result": result}
async def title(ID: str, data: TodoTitle):
result = Q().woql_and(
Q().triple(ID, 'title', 'v:Value'),
Q().delete_triple(ID, 'title', 'v:Value'),
Q().add_triple(ID, 'title',
Q().literal(data.value, 'string'))).execute(DB)
return {"id": ID, "value": data.value}
async def item(ID: str):
data = Q().limit(1).woql_and(
Q().triple(ID, "type", "scm:Todo"),
Q().triple(ID, "scm:title", "v:Title"),
Q().triple(ID, "scm:completed", "v:Completed")).execute(DB)
if data["bindings"]:
item = data["bindings"][0]
todo = {
"id": ID,
"title": item["Title"]["@value"],
"completed": item["Completed"]["@value"],
"links": {
"todo": f"/todo/{ID}",
"remove": f"/todo/{ID}/remove",
"title": f"/todo/{ID}/title",
"completed": f"/todo/{ID}/completed"
}
}
return todo
async def toggle(data: TodoCompleted):
result = Q().woql_and(
Q().triple('v:Doc', 'completed',
Q().literal(not data.value, 'boolean')),
Q().delete_triple('v:Doc', 'completed',
Q().literal(not data.value, 'boolean')),
Q().add_triple('v:Doc', 'completed',
Q().literal(data.value, 'boolean'))).execute(DB)
return {"result": result}
async def create(ID: str, data: TodoTitle):
result = Q().woql_and(
Q().add_triple(ID, 'type', 'scm:Todo'),
Q().add_triple(ID, 'title',
Q().literal(data.value, 'string')),
Q().add_triple(ID, 'completed',
Q().literal(False, 'boolean'))).execute(DB)
if result["inserts"] == 0:
return JSONResponse(status_code=409, content={"message": "Conflict"})
return {"id": ID}
async def remove(ID: str):
result = Q().woql_and(Q().triple(ID, 'v:Predicate', 'v:Object'),
Q().delete_triple(ID, 'v:Predicate',
'v:Object')).execute(DB)
return {"id": ID, "result": result}