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resource-type-collection.mixin.jsx
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resource-type-collection.mixin.jsx
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var rest = require("qwest");
var merge = require("merge");
var deep_equal = require("deep-equal");
var clone = require("clone");
var Promise = require("bluebird");
var default_pagination = {
page: 1,
items: 12
}
module.exports = {
getInitialState: function() {
return {
resources: [],
last_loaded: -Infinity,
last_query: {},
pagination: clone(default_pagination),
};
},
getDefaultProps() {
return {
paginate: false,
filter: {},
format: {},
search: "",
transformEntry: function(x){return x},
};
},
generateQuery: function(props){
var query = {};
if(props.paginate){
query.pagination = this.state.pagination;
}
if(props.search){
query.search = props.search;
}
if(props.filter){
query.filter = props.filter;
for(var i in query.filter){
if(query.filter[i]=="undefined" || query.filter[i]===null){
delete query.filter
}
}
}
if(props.sort){
query.sort = props.sort;
}
if(props.format){
query.format = props.format;
}
return query;
},
reloadNeeded: function(query){
return !deep_equal(query, this.state.last_query);
},
paginationResetNeeded: function(query){
if(deep_equal(query.pagination, default_pagination)){
return false;
}
for(var attr in query){
if(attr != "pagination"){
if(!deep_equal(query[attr], this.state.last_query[attr])){
return true;
}
}
}
return false;
},
resetPagination: function(cb){
this.setState({
pagination: clone(default_pagination)
}, cb)
},
fetch: function(query){
var self = this;
self.setState({
loading: true
})
// console.log(self.props.url);
return new Promise(function(resolve, reject){
setTimeout(resolve, 1000);
}).then(function(){
return rest.get(self.props.url, query)
.then(function(xml, response){
var resources = response.map(self.props.transformEntry);
self.setState({
loading: false,
resources: resources,
last_query: clone(query)
})
})
})
},
refresh: function(force){
var self = this;
var query = this.generateQuery(this.props);
if(self.paginationResetNeeded(query)){
console.log("pagination reset needed!");
self.resetPagination(function(){
console.log("pagination has been reset!");
self.fetch(query);
})
return;
}
if(force || self.reloadNeeded(query)){
return self.fetch(query);
}else{
return Promise.resolve();
}
},
componentDidMount: function(){
this.refresh();
},
componentWillReceiveProps: function(next_props) {
var self = this;
setTimeout(function(){
self.refresh();
}, 0)
},
delete: function(resource){
var self = this;
rest.delete(self.props.url + "/" + resource.id)
.then(function(){
self.refresh();
})
}
}

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