forked from DGNum/gestioCOF
add Article and Category models
This commit is contained in:
Ludovic Stephan
parent
a9cb50b38d
commit
643503269e
2 changed files with 500 additions and 0 deletions
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@ -449,6 +449,79 @@ class Statement extends ModelObject {
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}
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/**
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* ArticleCategory model. Cannot be accessed through API.
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* @extends Models.ModelObject
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* @memberof Models
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*/
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class ArticleCategory extends ModelObject {
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/**
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* Properties associated to a category
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* @default <tt>['id', 'name']</tt>
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* @see {@link Models.ModelObject.props|ModelObject.props}
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*/
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static get props() {
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return ['id', 'name'];
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}
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/**
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* Default values for ArticleCategory model instances.
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* @default <tt>{ 'id': 0, 'name': '' }</tt>
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* @see {@link Models.ModelObject.default_data|ModelObject.default_data}
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*/
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static get default_data() {
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return {'id': 0, 'name': ''};
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}
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/**
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* @default {@link Formatters.ArticleCategoryFormatter}
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*/
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formatter() {
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return ArticleCategoryFormatter;
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}
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}
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/**
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* Article model. Cannot be accessed through API.
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* @extends Models.ModelObject
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* @memberof Models
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*/
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class Article extends ModelObject {
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/**
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* Properties associated to an article
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* @default <tt>['id', 'name']</tt>
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* @see {@link Models.ModelObject.props|ModelObject.props}
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*/
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static get props() {
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return ['id', 'name', 'price', 'stock', 'category'];
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}
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/**
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* Default values for Article model instances.
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* @default <tt>{ 'id': 0, 'name': '', 'price': 0, 'stock': 0,
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* 'category': new ArticleCategory() }</tt>
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* @see {@link Models.ModelObject.default_data|ModelObject.default_data}
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*/
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static get default_data() {
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return {
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'id': 0, 'name': '', 'price': 0, 'stock': 0,
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'category': new ArticleCategory(),
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};
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}
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/**
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* @default {@link Formatters.ArticleCategoryFormatter}
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*/
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formatter() {
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return ArticleFormatter;
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}
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// Take care of 'price' type
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// API currently returns a string object (serialization of Decimal type within Django)
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get price() { return this._price; }
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set price(v) { this._price = floatCheck(v); }
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}
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/* ---------- ---------- */
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@ -683,3 +756,33 @@ class StatementFormatter extends Formatter {
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}
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}
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/**
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* @memberof Formatters
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* @extends Formatters.Formatter
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*/
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class ArticleCategoryFormatter extends Formatter {
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/**
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* Properties renderable to html.
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* @default {@link Models.Statement.props}
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*/
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static get props() {
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return ArticleCategory.props;
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}
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static get _data_stock() {
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return {
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'default': '', 'low': 'low',
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'ok': 'ok', 'neg': 'neg',
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};
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}
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static attr_data_stock(a) {
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if (a.stock >= 5) { return this._data_stock.ok; }
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else if (a.stock >= -5) { return this._data_stock.low; }
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else /* a.stock < -5 */ { return this._data_stock.neg; }
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}
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}
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@ -189,6 +189,403 @@ function booleanCheck(v) {
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return v == true;
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}
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function functionCheck(v) {
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if (typeof v === 'function')
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return v;
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return function(){};
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}
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function restrict(obj, attr_list) {
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var restricted = {} ;
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for (let attr of attr_list) {
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restricted[attr] = obj[attr] ;
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}
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return restricted ;
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}
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class ArticleCategory {
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constructor(id, name) {
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this.id = id;
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this.name = name;
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}
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get id() { return this._id; }
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set id(v) { this._id = intCheck(v); }
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html(template) {
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var $template = $(template)
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$template.attr('id', 'data-category-'+this.id);
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$template.find('td').text(this.name);
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return $template ;
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}
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static compare(a, b) {
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return a.name.localeCompare(b.name) ;
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}
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}
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class Article {
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constructor () {
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$.extend(this, this.constructor.default_data);
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}
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static get default_data() {
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return {
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'id': 0, 'name': '', 'price': 0, 'stock': 0,
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'category': new ArticleCategory(),
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};
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}
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get id() { return this._id; }
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get price() { return this._price; }
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get stock() { return this._stock; }
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set id(v) { this._id = intCheck(v); }
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set price(v) { this._price = floatCheck(v); }
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set stock(v) { this._stock = intCheck(v); }
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get str_price_ukf() {
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return amountToUKF(this.price, false);
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}
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static get _data_stock_ok() { return ''; }
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static get _data_stock_low() { return 'low'; }
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static get _data_stock_neg() { return 'neg'; }
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get data_stock() {
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var stock = this.stock ;
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if (stock >= 5) { return this.constructor._data_stock_ok; }
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else if (stock >= -5) { return this.constructor._data_stock_low; }
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else /* stock < -5 */ { return this.constructor._data_stock_neg; }
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}
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from(data) {
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$.extend(this, this.constructor.default_data, data);
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}
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html(template) {
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var $template = $(template);
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$template
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.find('.name').text(this.name).end()
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.find('.price').text(this.str_price_ukf).end()
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.find('.stock').text(this.stock).end();
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$template.attr('id', 'data-article-'+this.id);
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$template.attr('data-stock', this.data_stock);
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return $template ;
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}
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static compare(a, b) {
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return a.name.localeCompare(b.name) ;
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}
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reset() {
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this.from({});
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}
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}
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class ArticleList {
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constructor() {
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this.articles = [];
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this.categories = [];
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}
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get_or_create(id, name) {
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var category = this.categories.find(c => c.id === id);
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if (!category) {
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category = new ArticleCategory(id, name);
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this.categories.push(category);
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}
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return category;
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}
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from(data, callback) {
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callback = functionCheck(callback);
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for (let article_data of data['articles']) {
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var category = this.get_or_create(article_data['category_id'], article_data['category__name']) ;
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article_data = restrict(article_data, ['name', 'price', 'stock', 'id']) ;
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article_data['category'] = category ;
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var article = new Article() ;
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article.from(article_data) ;
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this.articles.push(article) ;
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}
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callback() ;
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}
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fromAPI(on_success, on_error) {
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on_error = functionCheck(on_error);
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var that = this ;
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$.ajax({
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dataType: "json",
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url : "{% url 'kfet.kpsul.articles_data' %}",
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method : "GET",
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})
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.done((data) => this.from(data, on_success))
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.fail(on_error);
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}
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display($container, $article_template, $category_template) {
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this.categories.sort(ArticleCategory.compare) ;
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for (let cat of this.categories) {
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var cat_articles = this.articles.filter(a => a.category.id === cat.id) ;
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cat_articles.sort(Article.compare);
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$container.append(cat.html($category_template)) ;
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for (let art of cat_articles) {
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$container.append(art.html($article_template)) ;
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}
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}
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}
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clear() {
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this.articles = [];
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this.categories = [] ;
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}
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find_by_id(name) {
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return this.articles.find(function(a) {
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return a.name === name ;
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});
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}
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get_from_elt($elt) {
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var id = $elt.attr('id').split('-')[2];
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return this.articles.find(function(article) {
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return (article.id == id) ;
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});
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}
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}
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class ArticleManager {
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constructor(env) {
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this._env = env; // Global K-Psul Manager
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this._$container = $('#articles_data tbody');
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this._$input = $('#article_autocomplete');
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this._$nb = $('#article_number');
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this._category_template = '<tr class="category"><td colspan="3"></td></tr>';
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this._article_template = '<tr class="article"><td class="name"></td><td class="price"></td><td class="stock"></td></tr>';
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this.selected = new Article() ;
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this.list = new ArticleList() ;
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this.autocomplete = new ArticleAutocomplete(this);
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this._init_events();
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}
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get nb() {
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return this._$nb.val() ;
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}
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display_list() {
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this.list.display(this._$container, this._article_template, this._category_template) ;
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}
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validate(article) {
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this.selected.from(article) ;
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this._$input.val(article.name);
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this._$nb.val('1');
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this._$nb.focus().select();
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}
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unset() {
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this.selected.reset();
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}
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is_empty() {
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return this.selected.id == 0 ;
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}
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reset_data() {
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this._$container.find('tr').remove();
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this.list.clear();
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this.list.fromAPI(this.display_list.bind(this)) ;
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}
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update_data(data) {
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for (let article_dict of data) {
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var article = this.list.articles.find(function(art) {
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return (art.id == article_dict['id']);
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});
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// For now, article additions are disregarded
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if (article) {
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article.stock = article_dict['stock'];
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this._$container.find('#data-article-'+article_dict['id']+' .stock')
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.text(article_dict['stock']);
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}
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}
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}
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reset() {
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this.unset() ;
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this._$nb.val('');
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this._$input.val('');
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this.autocomplete.showAll() ;
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}
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_init_events() {
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var that = this;
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// 8:Backspace|9:Tab|13:Enter|46:DEL|112-117:F1-6|119-123:F8-F12
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var normalKeys = /^(8|9|13|46|112|113|114|115|116|117|119|120|121|122|123)$/;
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var arrowKeys = /^(37|38|39|40)$/;
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//Global input event (to merge ?)
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this._$input.on('keydown', function(e) {
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if (e.keyCode == 13 && that._$input.val() == '') {
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that._env.performOperations();
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}
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});
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this._$container.on('click', '.article', function() {
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var article = that.list.get_from_elt($(this)) ;
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that.validate(article);
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});
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this._$nb.on('keydown', function(e) {
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if (e.keyCode == 13 && ArticleManager.check_nb(that.nb) && !that.is_empty()) {
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that._env.addPurchase(that.selected, that.nb);
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that.reset();
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that.focus();
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}
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if (normalKeys.test(e.keyCode) || arrowKeys.test(e.KeyCode) || e.ctrlKey) {
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if (e.ctrlKey && e.charCode == 65)
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that._$nb.val('');
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return true ;
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}
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if (ArticleManager.check_nb(that.nb+e.key))
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return true;
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return false;
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});
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}
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focus() {
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this._$input.focus();
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return this;
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}
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static check_nb(nb) {
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return /^[0-9]+$/.test(nb) && nb > 0 && nb <= 24 ;
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}
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}
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class ArticleAutocomplete {
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constructor(article_manager) {
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this.manager = article_manager;
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this.matching = [];
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this.active_categories = [];
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this._$container = article_manager._$container ;
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this._$input = $('#article_autocomplete');
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this.showAll() ;
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this._init_events();
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}
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_init_events() {
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var that = this ;
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// 8:Backspace|9:Tab|13:Enter|46:DEL|112-117:F1-6|119-123:F8-F12
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var normalKeys = /^(8|9|13|46|112|113|114|115|116|117|119|120|121|122|123)$/;
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this._$input
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.on('keydown', function(e) {
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var text = that._$input.val() ;
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if (normalKeys.test(e.keyCode) || e.ctrlKey) {
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// For the backspace key, we suppose the cursor is at the very end
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if(e.keyCode == 8) {
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that.update(text.substring(0, text.length-1), true);
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}
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return true ;
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}
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that.update(text+e.key, false);
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return false ;
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});
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}
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update(prefix, backspace) {
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var article_list = this.manager.list ;
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var lower = prefix.toLowerCase() ;
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var that = this ;
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this.matching = article_list.articles.filter(function(article) {
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return article.name.toLowerCase()
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.indexOf(lower) === 0 ;
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});
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this.active_categories = article_list.categories.filter(function(category) {
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return that.matching.find(function(article) {
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return article.category === category ;
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});
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});
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if (this.matching.length == 1) {
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if (!backspace) {
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this.manager.validate(this.matching[0]) ;
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this.showAll() ;
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} else {
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this.manager.unset();
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this.updateDisplay();
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}
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} else if (this.matching.length > 1) {
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this.manager.unset();
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this.updateDisplay() ;
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if (!backspace)
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this.updatePrefix();
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}
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}
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updateDisplay() {
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var article_list = this.manager.list ;
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for (let article of article_list.articles) {
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if (this.matching.indexOf(article) > -1) {
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this._$container.find('#data-article-'+article.id).show();
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} else {
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this._$container.find('#data-article-'+article.id).hide();
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}
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}
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for (let category of article_list.categories) {
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if (this.active_categories.indexOf(category) > -1) {
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this._$container.find('#data-category-'+category.id).show();
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} else {
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this._$container.find('#data-category-'+category.id).hide();
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}
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}
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}
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updatePrefix() {
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var lower = this.matching.map(function (article) {
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return article.name.toLowerCase() ;
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});
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lower.sort() ;
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var first = lower[0], last = lower[lower.length-1],
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length = first.length, i = 0;
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while (i < length && first.charAt(i) === last.charAt(i)) i++;
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this._$input.val(first.substring(0,i)) ;
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}
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showAll() {
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this.matching = this.manager.list.articles;
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this.active_categories = this.manager.list.categories;
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this.updateDisplay();
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}
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}
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$(document).ready(function() {
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'use strict';
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