Ghost/core/server/data/meta/paginated_url.js
kirrg001 4265afe580 Moved utils/url.js to UrlService
refs #9178

- we have to take care that we don't end up in circular dependencies
  - e.g. API requires UrlService and UrlService needs to require the API (for requesting data)
- update the references
- we would like to get rid of the utils folder, this is/was the most complicated change
2017-12-11 20:05:33 +01:00

37 lines
1.7 KiB
JavaScript

var _ = require('lodash'),
config = require('../../config'),
urlService = require('../../services/url');
function getPaginatedUrl(page, data, absolute) {
// If we don't have enough information, return null right away
if (!data || !data.relativeUrl || !data.pagination) {
return null;
}
var pagePath = urlService.utils.urlJoin('/', config.get('routeKeywords').page, '/'),
// Try to match the base url, as whatever precedes the pagePath
baseUrlPattern = new RegExp('(.+)?(/' + config.get('routeKeywords').page + '/\\d+/)'),
baseUrlMatch = data.relativeUrl.match(baseUrlPattern),
// If there is no match for pagePath, use the original url, without the trailing slash
baseUrl = baseUrlMatch ? baseUrlMatch[1] : data.relativeUrl.slice(0, -1),
newRelativeUrl;
if (page === 'next' && data.pagination.next) {
newRelativeUrl = urlService.utils.urlJoin(pagePath, data.pagination.next, '/');
} else if (page === 'prev' && data.pagination.prev) {
newRelativeUrl = data.pagination.prev > 1 ? urlService.utils.urlJoin(pagePath, data.pagination.prev, '/') : '/';
} else if (_.isNumber(page)) {
newRelativeUrl = page > 1 ? urlService.utils.urlJoin(pagePath, page, '/') : '/';
} else {
// If none of the cases match, return null right away
return null;
}
// baseUrl can be undefined, if there was nothing preceding the pagePath (e.g. first page of the index channel)
newRelativeUrl = baseUrl ? urlService.utils.urlJoin(baseUrl, newRelativeUrl) : newRelativeUrl;
return urlService.utils.urlFor({relativeUrl: newRelativeUrl, secure: data.secure}, absolute);
}
module.exports = getPaginatedUrl;