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Added prev/next post controls

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This commit is contained in:
Marcin Kurczewski
2014-10-05 10:09:02 +02:00
parent 33c1d99583
commit 688b5b1281
12 changed files with 200 additions and 9 deletions
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26
public_html/js/Pager.js
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@ -9,6 +9,7 @@ App.Pager = function(
var pageNumber;
var searchParams;
var url;
var cache = {};
function init(args) {
url = args.url;
@ -55,7 +56,7 @@ App.Pager = function(
function retrieve() {
return promise.make(function(resolve, reject) {
promise.wait(api.get(url, _.extend({}, searchParams, {page: pageNumber})))
promise.wait(api.get(url, _.extend({page: pageNumber}, searchParams)))
.then(function(response) {
var pageSize = response.json.pageSize;
var totalRecords = response.json.totalRecords;
@ -71,6 +72,27 @@ App.Pager = function(
});
}
function retrieveCached() {
return promise.make(function(resolve, reject) {
var cacheKey = JSON.stringify(_.extend({}, searchParams, {url: url, page: getPage()}));
if (cacheKey in cache) {
resolve.apply(this, cache[cacheKey]);
} else {
promise.wait(retrieve())
.then(function() {
cache[cacheKey] = arguments;
resolve.apply(this, arguments);
}).fail(function() {
reject.apply(this, arguments);
});
}
});
}
function resetCache() {
cache = {};
}
function getVisiblePages() {
var pages = [1, totalPages || 1];
var pagesAroundCurrent = 2;
@ -100,7 +122,9 @@ App.Pager = function(
getSearchParams: getSearchParams,
setSearchParams: setSearchParams,
retrieve: retrieve,
retrieveCached: retrieveCached,
getVisiblePages: getVisiblePages,
resetCache: resetCache,
};
};