85 lines
2.2 KiB
JavaScript
85 lines
2.2 KiB
JavaScript
/**
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* Created by tsufiev on 2/24/15.
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*/
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(function() {
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'use strict';
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angular.module('merlin')
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.factory('merlin.utils', function() {
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Array.prototype.condense = function() {
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return this.filter(function(el) {
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return el !== undefined && el != null;
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});
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};
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var _id_counter = 0;
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function getNewId() {
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_id_counter++;
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return 'id-' + _id_counter;
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}
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function groupByMetaKey(sequence, metaKey, insertAtBeginning) {
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var newSequence = [], defaultBucket = [],
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index;
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sequence.forEach(function(item) {
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index = getMeta(item, metaKey);
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if ( index !== undefined ) {
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if ( !newSequence[index] ) {
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newSequence[index] = [];
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newSequence[index][metaKey] = index;
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}
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newSequence[index].push(item);
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} else {
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defaultBucket.push(item);
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}
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});
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newSequence = newSequence.condense();
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// insert default bucket at the beginning/end of sequence
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if ( defaultBucket.length ) {
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if ( insertAtBeginning ) {
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newSequence.splice(0, 0, defaultBucket);
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} else {
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newSequence.push(defaultBucket);
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}
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}
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return newSequence;
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}
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function getMeta(item, key) {
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var meta = item._schema['@meta'];
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return meta && meta[key];
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}
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function makeTitle(str) {
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if ( !str ) {
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return '';
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}
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var firstLetter = str.substr(0, 1).toUpperCase();
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return firstLetter + str.substr(1);
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}
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function getNextIDSuffix(container, regexp) {
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var max = Math.max.apply(Math, container.getIDs().map(function(id) {
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var match = regexp.exec(id);
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return match && +match[2];
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}));
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return max > 0 ? max + 1 : 1;
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}
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function enhanceItemWithID(item, id) {
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item.setID(id);
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return item;
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}
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return {
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getMeta: getMeta,
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getNewId: getNewId,
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groupByMetaKey: groupByMetaKey,
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makeTitle: makeTitle,
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getNextIDSuffix: getNextIDSuffix,
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enhanceItemWithID: enhanceItemWithID
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}
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})
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})(); |