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legacyStore.js
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legacyStore.js
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var getId = require("./getid");
var canSet = require("can-set");
var isArrayLike = require("can-util/js/is-array-like/is-array-like");
var each = require("can-util/js/each/each");
var assign = require("can-util/js/assign/assign");
module.exports = function (count, make, filter) {
/*jshint eqeqeq:false */
// check
// the currentId to use when a new instance is created.
var currentId = 0,
items,
findOne = function (id) {
for (var i = 0; i < items.length; i++) {
if (id == items[i].id) {
return items[i];
}
}
},
methods = {},
types,
reset;
if(isArrayLike(count) && typeof count[0] === "string" ){
types = count;
count = make;
make= filter;
filter = arguments[3];
} else if(typeof count === "string") {
types = [count + "s", count];
count = make;
make= filter;
filter = arguments[3];
}
if(typeof count === "number") {
items = [];
reset = function () {
items = [];
for (var i = 0; i < (count); i++) {
//call back provided make
var item = make(i, items);
if (!item.id) {
item.id = i;
}
currentId = Math.max(item.id + 1, currentId + 1) || items.length;
items.push(item);
}
};
} else {
filter = make;
var initialItems = count;
reset = function(){
items = initialItems.slice(0);
};
}
// make all items
assign(methods, {
getListData: function (request) {
request = request || {};
//copy array of items
var retArr = items.slice(0);
request.data = request.data || {};
//sort using order
//order looks like ["age ASC","gender DESC"]
each((request.data.order || [])
.slice(0)
.reverse(), function (name) {
var split = name.split(" ");
retArr = retArr.sort(function (a, b) {
if (split[1].toUpperCase() !== "ASC") {
if (a[split[0]] < b[split[0]]) {
return 1;
} else if (a[split[0]] === b[split[0]]) {
return 0;
} else {
return -1;
}
} else {
if (a[split[0]] < b[split[0]]) {
return -1;
} else if (a[split[0]] === b[split[0]]) {
return 0;
} else {
return 1;
}
}
});
});
//group is just like a sort
each((request.data.group || [])
.slice(0)
.reverse(), function (name) {
var split = name.split(" ");
retArr = retArr.sort(function (a, b) {
return a[split[0]] > b[split[0]];
});
});
var offset = parseInt(request.data.offset, 10) || 0,
limit = parseInt(request.data.limit, 10) || (items.length - offset),
i = 0;
//filter results if someone added an attr like parentId
for (var param in request.data) {
i = 0;
if (request.data[param] !== undefined && // don't do this if the value of the param is null (ignore it)
(param.indexOf("Id") !== -1 || param.indexOf("_id") !== -1)) {
while (i < retArr.length) {
if (request.data[param] != retArr[i][param]) { // jshint eqeqeq: false
retArr.splice(i, 1);
} else {
i++;
}
}
}
}
if ( typeof filter === "function" ) {
i = 0;
while (i < retArr.length) {
if (!filter(retArr[i], request)) {
retArr.splice(i, 1);
} else {
i++;
}
}
} else if( typeof filter === "object" ) {
i = 0;
while (i < retArr.length) {
var subset = canSet.subset(retArr[i], request.data, filter);
if ( !subset ) {
retArr.splice(i, 1);
} else {
i++;
}
}
}
// Return the data spliced with limit and offset, along with related values
// (e.g. count, limit, offset)
var responseData = {
"count": retArr.length,
"data": retArr.slice(offset, offset + limit)
};
each(["limit","offset"], function(prop){
if(prop in request.data) {
responseData[prop] = request.data[prop];
}
});
return responseData;
},
/**
* @description Simulate a findOne request on a fixture.
* @function fixture.types.Store.findOne
* @parent fixture.types.Store
* @signature `store.findOne(request, response)`
* @param {Object} request Parameters for the request.
* @param {Function} response A function to call with the retrieved item.
*
* @body
* `store.findOne(request, response(item))` simulates a request to
* get a single item from the server by id.
*
* todosStore.findOne({
* url: "/todos/5"
* }, function(todo){
*
* });
*
*/
getData: function (request, response) {
var item = findOne(getId(request));
if(typeof item === "undefined") {
return response(404, 'Requested resource not found');
}
response(item);
},
// ## fixtureStore.update
// Simulates a Model.update to a fixture
updateData: function (request, response) {
var id = getId(request),
item = findOne(id);
if(typeof item === "undefined") {
return response(404, 'Requested resource not found');
}
// TODO: make it work with non-linear ids ..
assign(item, request.data);
response({
id: id
}, {
location: request.url || "/" + getId(request)
});
},
/**
* @description Simulate destroying a Model on a fixture.
* @function fixture.types.Store.destroy
* @parent fixture.types.Store
* @signature `store.destroy(request, callback)`
* @param {Object} request Parameters for the request.
* @param {Function} callback A function to call after destruction.
*
* @body
* `store.destroy(request, response())` simulates
* a request to destroy an item from the server.
*
* ```
* todosStore.destroy({
* url: "/todos/5"
* }, function(){});
* ```
*/
destroyData: function (request, response) {
var id = getId(request),
item = findOne(id);
if(typeof item === "undefined") {
return response(404, 'Requested resource not found');
}
for (var i = 0; i < items.length; i++) {
if (items[i].id == id) { // jshint eqeqeq: false
items.splice(i, 1);
break;
}
}
// TODO: make it work with non-linear ids ..
return {};
},
// ## fixtureStore.create
// Simulates a Model.create to a fixture
createData: function (settings, response) {
var item = typeof make === 'function' ? make(items.length, items) : {};
assign(item, settings.data);
// If an ID wasn't passed into the request, we give the item
// a unique ID.
if (!item.id) {
item.id = currentId++;
}
// Push the new item into the store.
items.push(item);
response({
id: item.id
}, {
location: settings.url + "/" + item.id
});
}
});
reset();
// if we have types given add them to fixture
return assign({
findAll: methods.getListData,
findOne: methods.getData,
create: methods.createData,
update: methods.updateData,
destroy: methods.destroyData,
getId: getId,
find: function (settings) {
return findOne(getId(settings));
},
reset: reset
}, methods);
};