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some setup and comments for unsubscribe, for when we get that fixed in

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the future
This commit is contained in:
Tyler Renelle 2013-02-06 01:11:12 -05:00
parent 972a7af0ff
commit 427e2983cf
1 changed files with 47 additions and 24 deletions
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71
src/app/party.coffee
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@ -10,32 +10,55 @@ _subscriptions =
ids: null
module.exports.partySubscribe = partySubscribe = (model, id, cb) ->
# New subscription coming in, or reset subscription with new parameters
if true #!_subscriptions.party.query? or _subscriptions.party.id != id
_subscriptions.party.query = model.query('parties').withId(id)
_subscriptions.party.id = id
_subscriptions.party.query.subscribe (err, res) ->
throw err if err
p = res.at(0)
model.ref '_party', p
p.on '*', 'members', (ids) ->
# FIXME not being triggered...
membersSubscribe model, ids
cb(p) if cb?
else
cb(model.at('_party')) if cb?
s = _subscriptions
###
# Note, this tries to unsubscribe from previous similar subscriptions so we don't have a memory leak. However,
# This causes the page to crash on refresh. We need to fix this in the future. Same goes for membersSubscribe
if s.party.query? and id == s.party.id
# No need to resubscribe, same parameters
return cb(model.at('_party'))
# already have a subscription, but we want a new one
if s.party.query? and s.party.id != id
s.party.query.unsubscribe()
s.party.query = null
###
# subscripe
s.party.query = model.query('parties').withId(id)
s.party.id = id
s.party.query.subscribe (err, res) ->
throw err if err
p = res.at(0)
model.ref '_party', p
p.on '*', 'members', (ids) ->
# FIXME not being triggered...
membersSubscribe model, ids
cb(p) if cb?
module.exports.membersSubscribe = membersSubscribe = (model, ids, cb) ->
# New subscription coming in, or reset subscription with new parameters
if true #!_subscriptions.members.query? or !_.isEmpty(_.difference(_subscriptions.members.ids, ids))
_subscriptions.members.query = model.query('users').party(ids)
_subscriptions.members.ids = ids
_subscriptions.members.query.subscribe (err, m) ->
throw err if err
model.ref '_partyMembers', m
cb(m) if cb?
else
cb(model.at('_partyMembers')) if cb?
s = _subscriptions
### @see above
if s.members.query? and !_.isEmpty(_.difference(s.members.ids, ids))
# No need to resubscribe, same parameters
return cb(model.at('_partyMembers'))
# already have a subscription, but we want a new one
if s.members.query? and _.isEmpty(_.difference(s.members.ids, ids))
s.members.query.unsubscribe()
s.members.query = null
###
# subscripe
s.members.query = model.query('users').party(ids)
s.members.ids = ids
s.members.query.subscribe (err, m) ->
throw err if err
model.ref '_partyMembers', m
cb(m) if cb?
module.exports.app = (appExports, model) ->
user = model.at('_user')