STEINNI
123 lines
3.8 KiB
JavaScript
Executable File
123 lines
3.8 KiB
JavaScript
Executable File
/**
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* Meta data collections utility class for Sparc
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*
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* @author Michael Fallise
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* @version 1.0
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* @category MyEic
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* @subcategory Libraries
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*/
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class EICMetaData {
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collections = {};
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/**
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* Adds a collection to the metadata set
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* @param {string} ref
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* @param {array} collection
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*/
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add(ref, collection) { if(!this.collections.hasOwnProperty(ref)) this.collections[ref] = collection; }
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/**
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* Returns a collection
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* @param {string} ref
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* @returns {Array<object>}
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*/
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getCollection(ref) { return this.collections.hasOwnProperty(ref) ? this.collections[ref].content: []; }
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/**
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* Return a collection item object
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* @param {*} ref
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* @param {*} id
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* @returns {object|null}
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*/
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getItem(collection, id) {
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// if collection is a string ref, fetch matching collection
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if(!Array.isArray(collection)) collection = this.getCollection(collection);
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// parse recursively to find matching item id
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return collection ? this.getItemRecurse(collection, id) : null;
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}
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/**
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*
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* @param {*} tree
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* @param {*} id
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* @returns {object|null}
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*/
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getItemRecurse(tree, id) {
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if (Array.isArray(tree)) {
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for(let i = 0; i < tree.length; i++) {
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let item = this.getItemRecurse(tree[i], id);
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if(item) { return item; }
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}
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} else if (typeof tree === 'object') {
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if (tree.id && tree.id == id) return tree;
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}
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if (tree.children !== undefined && tree.children.length > 0) {
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return this.getItemRecurse(tree.children, id);
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} else {
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return null;
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}
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}
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/**
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* Returns a collection item label
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* @param {string} ref
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* @param {string} id
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* @returns {string}
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*/
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toString(ref, id) {
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let item = this.getItem(ref, id);
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return item ? item.label: `(${ref}.${id})`;
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}
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/**
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* Converts a collection into a list of OPTION tags
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* @param {string} ref
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* @returns {Array<Element>}
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*/
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toOptions(collection, selectedIds=[], placeHolder) {
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if(!Array.isArray(collection)) collection = this.getCollection(collection);
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if(!Array.isArray(selectedIds)) selectedIds = [selectedIds];
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let options = [];
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if(placeHolder) options.push(ui.create(`<option value=""><option>`))
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if(collection)
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for (const item of collection) {
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options.push(ui.create(`<option value="${item.id}" ${(selectedIds.indexOf(item.id)>-1) ? 'selected':''}>${item.label}</option>`));
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}
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return options;
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}
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/**
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*
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* @param {*} collection
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* @param {*} selectedId
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* @param {*} placeHolder
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* @param {*} parentId
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* @returns {Array<Element>}
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*/
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toOptionsRecurse(collection, selectedId, placeHolder, parentId) {
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if(!Array.isArray(collection)) collection = this.getCollection(collection);
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let options = [];
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let children = [];
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if(placeHolder) options.push(`<option value=""><option>`)
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if(collection)
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for (const item of collection) {
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options.push(`<option ${item.children ? `data-ref="${item.id}"`: ''} value="${item.id}" ${selectedId ? (selectedId == item.id ? 'selected':'') :''}>${item.label}</option>`);
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if(item.children) children.push({parent: item.id, children: item.children})
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}
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let html = parentId ? `<optgroup data-parent="${parentId}">${options.join('')}</optgroup>`: `${options.join('')}`;
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for(let item of children) {
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html += `${this.toOptionsRecurse(item.children, selectedId, false, item.parent)}`;
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}
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return html;
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}
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}
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app.registerClass('EICMetaData',EICMetaData);
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app.meta = new EICMetaData(); |