81 lines
2.2 KiB
JavaScript
81 lines
2.2 KiB
JavaScript
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// # Foreach Helper
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// Usage: `{{#foreach data}}{{/foreach}}`
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//
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// Block helper designed for looping through posts
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var hbs = require('express-hbs'),
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foreach;
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foreach = function (context, options) {
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var fn = options.fn,
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inverse = options.inverse,
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i = 0,
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j = 0,
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columns = options.hash.columns,
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key,
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ret = '',
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data;
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if (options.data) {
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data = hbs.handlebars.createFrame(options.data);
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}
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function setKeys(_data, _i, _j, _columns) {
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if (_i === 0) {
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_data.first = true;
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}
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if (_i === _j - 1) {
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_data.last = true;
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}
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// first post is index zero but still needs to be odd
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if (_i % 2 === 1) {
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_data.even = true;
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} else {
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_data.odd = true;
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}
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if (_i % _columns === 0) {
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_data.rowStart = true;
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} else if (_i % _columns === (_columns - 1)) {
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_data.rowEnd = true;
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}
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return _data;
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}
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if (context && typeof context === 'object') {
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if (context instanceof Array) {
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for (j = context.length; i < j; i += 1) {
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if (data) {
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data.index = i;
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data.first = data.rowEnd = data.rowStart = data.last = data.even = data.odd = false;
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data = setKeys(data, i, j, columns);
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}
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ret = ret + fn(context[i], {data: data});
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}
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} else {
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for (key in context) {
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if (context.hasOwnProperty(key)) {
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j += 1;
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}
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}
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for (key in context) {
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if (context.hasOwnProperty(key)) {
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if (data) {
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data.key = key;
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data.first = data.rowEnd = data.rowStart = data.last = data.even = data.odd = false;
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data = setKeys(data, i, j, columns);
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}
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ret = ret + fn(context[key], {data: data});
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i += 1;
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}
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}
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}
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}
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if (i === 0) {
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ret = inverse(this);
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}
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return ret;
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};
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module.exports = foreach;
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