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#  
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# App composites collection implementation
from util import *

# Convert an id to an app id
def appid(id):
    return ("'apps", "'" + car(id), "'app.composite")

# Put an app into the apps db
def put(id, app, cache):
    comp = cdr(cadddr(car(app)))
    cache.put(appid(id), comp)
    return True

# Get an app from the apps db
def get(id, cache):
    if isNil(id):
        return (("'feed", ("'title", "Composites"), ("'id", "composites")),)
    app = cache.get(appid(id));
    if isNil(app) or app is None:
        return (("'entry", ("'title", car(id)), ("'id", car(id))),)
    return (("'entry", ("'title", car(id)), ("'id", car(id)), ("'content", car(app))),)

# Delete an app from the apps db
def delete(id, cache):
    cache.delete(appid(id))
    return True