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Endless scroll with single key value filter Backbone collection AMD support
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#AMD MODULE | |
define ["entities/_backbone", "msgbus", "moment"], (_Backbone, msgBus, moment) -> | |
#LP==loan processing model | |
class LP extends _Backbone.Model | |
defaults: | |
"SAPCML": null | |
"TradeID": null | |
"Savedate": null | |
"ChangeOutstanding": 0 | |
urlRoot:"/zd-api/lp" | |
class LPEntities extends _Backbone.Collection | |
model: LP | |
url:"/zd-api/lp" | |
initialize: -> | |
@filter = null | |
@take = 20 | |
@skip = 0 | |
@loading = false | |
@theEnd = false | |
setFilter: (filter={}) -> | |
@filter = filter | |
setPage: (page)-> | |
@skip = page | |
setPageSize: (size)-> | |
@take = size | |
parse: (resp) -> | |
@theEnd = resp.length < @take | |
resp | |
# endless scroll support | |
fetchMore: -> | |
return true if (@loading or @theEnd) | |
@loading = true | |
@skip++ | |
options = | |
take: @take | |
skip: @skip * @take | |
_.extend options, @filter | |
loaded = @fetch | |
remove: false | |
data: options | |
$.when(loaded).then => | |
@loading = false | |
_coll = new LPEntities | |
API = | |
newLP:-> | |
new LP | |
getLP:(id)-> | |
model = new LP | |
id: id | |
model.fetch() | |
model | |
fetchMore:-> | |
_coll.fetchMore() | |
getLPEntities: (options={}, filter={})-> | |
{skip,take} = options | |
_coll.setPage skip | |
_coll.setPageSize take | |
_coll.setFilter filter | |
_.extend options, filter | |
_coll.fetch | |
reset: true | |
data: options | |
_coll | |
msgBus.reqres.setHandler "new:lp:entity",-> | |
API.newLP() | |
msgBus.reqres.setHandler "lp:entity", (id) -> | |
API.getLP id | |
msgBus.reqres.setHandler "lp:entities", -> | |
API.getLPEntities | |
skip: 0 | |
take: 20 | |
# endless scroll support | |
msgBus.reqres.setHandler "lp:fetch:more", -> | |
API.fetchMore() | |
msgBus.reqres.setHandler "lp:filter:date", (date)-> | |
API.getLPEntities | |
skip: 0 | |
take: 20 | |
, | |
key: "savedate" | |
value: moment(date).format("YYYY-MM-DD") | |
msgBus.reqres.setHandler "lp:filter:port", (port)-> | |
API.getLPEntities | |
skip: 0 | |
take: 20 | |
, | |
key: "portfolio" | |
value: port | |
msgBus.reqres.setHandler "lp:filter:id", (id)-> | |
API.getLPEntities | |
skip: 0 | |
take: 20 | |
, | |
key: "id" | |
value: id | |
msgBus.reqres.setHandler "lp:filter:type", (type)-> | |
API.getLPEntities | |
skip: 0 | |
take: 20 | |
, | |
key: "type" | |
value: type |
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client side stuff. Used in a .NET WebAPI back end stack.