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helpers.js
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helpers.js
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var _ = require('lodash');
function pad(n, width, z) {
z = z || '0';
n = n + '';
return n.length >= width ? n : new Array(width - n.length + 1).join(z) + n;
}
function replaceTables(data) {
if (data.indexOf('[table') > -1) {
var str = data.replace(/\n/g, '');
var re = /(?:\[table.*?\])(.*?)(?:\[end table\])/g;
str = str.replace(re, function(a, b, c, d) {
var content = '<div class="inline-table"><table>';
var headerFound = false;
b = b.replace(/<(|\/)p>/g, ''); // kill paragraphs
content += b.replace(/<ul>(.*?)<\/ul>/g, function(match, innerHTML) {
if (!headerFound) {
headerFound = true;
return '<thead>' + innerHTML.replace(/li>/g, 'th>') + '</thead>';
} else {
return '<tr>' + innerHTML.replace(/li>/g, 'td>') + '</tr>';
}
});
content += '</table></div>';
return content;
});
return str;
}
return data;
}
function replaceGist(data) {
return data.replace(/\[gist (.*?)\]/g, function(a, b) {
return '<script src="https://gist.github.com/'+ b + '.js"></script>';
});
}
var helpers = {
serializer: require('./src/p2Serializer'),
resolver: null,
firstArticleInIssue: function(issue) {
var articles = issue.getArticles();
return articles.length? articles[0].getArticle() : false;
},
offsetArticleInIssue: function(issue, article, offset) {
var searchID = article.id();
var groups = issue.getArticles();
var length = groups.length;
for (var i = 0; i < length; i++) {
var currentID = groups[i].getArticle().id();
if ((currentID === searchID)) {
if ((i + offset < length) && (i + offset >= 0)) {
return groups[i + offset].getArticle();
} else {
return false;
}
}
}
return false;
},
nextArticleInIssue: function(issue, article) {
return this.offsetArticleInIssue(issue, article, 1);
},
prevArticleInIssue: function(issue, article) {
return this.offsetArticleInIssue(issue, article, -1);
},
articleURLParams: function(issue, article) {
return {
issueNum: pad(issue.getIssueNumber? issue.getIssueNumber(): issue.getNumber('issue.issue_number'), 2),
slug: (article.getSlug ? article.getSlug() : article.getText('article.slug'))
};
},
/**
* returns the first article from the articles with an id found in the list of linked documents
*
* note: if issues are able to link to more than just articles, this will need
* to be changed to only search the issue.articles array
**/
articleInIssue: function(articles, issue) {
var issueArticleIDs = issue.container.linkedDocuments().map(function(doc) {
return doc.id;
});
for (var i = 0; i < articles.length; i++) {
if (issueArticleIDs.indexOf(articles[i].id()) > -1) {
return articles[i];
}
}
throw "No article found in issue";
},
// Issue related
issueLabel: function(issue) {
return 'Issue ' + issue.getIssueNumber() + ', ' + issue.getIssueDate();
},
issueLabelShort: function(issue) {
return 'Issue' + pad(issue.getIssueNumber(), 2) + ', ' + issue.getIssueDate();
},
issueNumberPadded: function(issue) {
return pad(issue.getIssueNumber(), 2);
},
issuePageNumber: function(issue, article) {
var articles = issue.getArticles();
var articleID = article.id();
var articleIndex = null;
for (var i = 0; i < articles.length; i++) {
if (articleID === articles[i].getArticle().id()) {
articleIndex = i + 1;
break;
}
}
return 'Page ' + articleIndex + ' / ' + articles.length;
},
offsetIssue: function(issues, currentIssue, offset) {
var issueNumber = currentIssue.getIssueNumber();
var offsetIssueNumber = issueNumber + offset;
for (var i = 0; i < issues.length; i++) {
var issue = issues[i];
var issueNumber = issue.getIssueNumber? issue.getIssueNumber() : issue.getNumber('issue.issue_number');
if (issueNumber == offsetIssueNumber) {
return issues[i];
}
}
return false;
},
prevIssue: function(issues, currentIssue) {
return this.offsetIssue(issues, currentIssue, -1);
},
nextIssue: function(issues, currentIssue) {
return this.offsetIssue(issues, currentIssue, 1);
},
// general
sortDocumentsBy: function(documents, path) {
documents = documents.sort(function(a, b) {
return a.fragments[path].value - b.fragments[path].value;
});
return documents;
},
customRender: function(data) {
data = replaceTables(data);
data = replaceGist(data);
return data;
},
firstArticleImageUrl: function(article) {
var content = article.getContent().asHtml(),
url = /<img.*?src="(.*?)"/.exec(content);
if (url && url[1]) { return url[1]; }
return false;
},
// view modules
articleViewModel: function(rawIssues, rawArticles) {
var issue = this.potato.wrapDocument(rawIssues.results[0]),
articles = this.potato.wrapDocuments(rawArticles.results),
article = this.articleInIssue(articles, issue); // get the right article
var authors = article.getAuthors ? article.getAuthors() : [];
var nextArticle = this.nextArticleInIssue(issue, article);
var prevArticle = this.prevArticleInIssue(issue, article);
var firstImage = this.firstArticleImageUrl(article);
return {
issue: issue,
article: article,
authors: authors,
nextArticle: nextArticle,
prevArticle: prevArticle,
meta: {
title: (article.getMetaTitle && article.getMetaTitle()) ? article.getMetaTitle() : article.getTitle().asText(),
description: (article.getMetaDescription && article.getMetaDescription()) ? article.getMetaDescription() : article.getContent().asText().substring(0, 150).trim(),
keywords: (article.getMetaKeywords && article.getMetaKeywords()) ? article.getMetaKeywords() : 'agile development, experience design, software design, software delivery, continuous delivery',
image: (article.getMetaImage && article.getMetaImage()) ? article.getMetaImage().main.url : // article meta image
firstImage? firstImage : // first image from article
(issue.getMetaImage && issue.getMetaImage()) ? issue.getMetaImage().main.url : // issue meta image
(issue.getImage && issue.getImage()) ? issue.getImage().main.url : '' // issue image
}
};
},
issueViewModel: function(rawIssue, rawAllIssues) {
var issue = this.potato.wrapDocument(rawIssue.results[0]),
allIssues = this.potato.wrapDocuments(rawAllIssues.results);
var firstArticle = this.firstArticleInIssue(issue);
var nextIssue = this.nextIssue(allIssues, issue);
var prevIssue = this.prevIssue(allIssues, issue);
var articles = _.map(issue.getArticles(), function(group) {
return group.getArticle();
});
return {
issue: issue,
firstArticle: firstArticle,
nextIssue: nextIssue,
prevIssue: prevIssue,
articles: articles,
meta: {
title: (issue.getMetaTitle && issue.getMetaTitle()) ? issue.getMetaTitle() : issue.getTitle(),
description: (issue.getMetaDescription && issue.getMetaDescription()) ? issue.getMetaDescription() : issue.getBody().asText().substring(0, 150).trim(),
keywords: (issue.getMetaKeywords && issue.getMetaKeywords()) ? issue.getMetaKeywords() : 'agile development, experience design, software design, software delivery, continuous delivery',
image: (issue.getMetaImage && issue.getMetaImage()) ? issue.getMetaImage().main.url : // issue meta image
(issue.getImage && issue.getImage()) ? issue.getImage().main.url : '' // issue image
}
};
}
};
GLOBAL.helpers = helpers;