mirror of https://github.com/TryGhost/Ghost.git
55 lines
2.1 KiB
JavaScript
55 lines
2.1 KiB
JavaScript
// ### Pagination Helper
|
|
// `{{pagination}}`
|
|
// Outputs previous and next buttons, along with info about the current page
|
|
|
|
var proxy = require('./proxy'),
|
|
_ = require('lodash'),
|
|
errors = proxy.errors,
|
|
i18n = proxy.i18n,
|
|
createFrame = proxy.hbs.handlebars.createFrame,
|
|
templates = proxy.templates,
|
|
pagination;
|
|
|
|
pagination = function (options) {
|
|
options = options || {};
|
|
options.hash = options.hash || {};
|
|
options.data = options.data || {};
|
|
|
|
if (!_.isObject(this.pagination) || _.isFunction(this.pagination)) {
|
|
throw new errors.IncorrectUsageError({
|
|
level: 'normal',
|
|
message: i18n.t('warnings.helpers.pagination.invalidData'),
|
|
help: 'https://ghost.org/docs/api/v2/handlebars-themes/helpers/pagination/'
|
|
});
|
|
}
|
|
|
|
if (_.isUndefined(this.pagination.page) || _.isUndefined(this.pagination.pages) ||
|
|
_.isUndefined(this.pagination.total) || _.isUndefined(this.pagination.limit)) {
|
|
throw new errors.IncorrectUsageError({
|
|
message: i18n.t('warnings.helpers.pagination.valuesMustBeDefined')
|
|
});
|
|
}
|
|
|
|
if ((!_.isNull(this.pagination.next) && !_.isNumber(this.pagination.next)) ||
|
|
(!_.isNull(this.pagination.prev) && !_.isNumber(this.pagination.prev))) {
|
|
throw new errors.IncorrectUsageError({
|
|
message: i18n.t('warnings.helpers.pagination.nextPrevValuesMustBeNumeric')
|
|
});
|
|
}
|
|
|
|
if (!_.isNumber(this.pagination.page) || !_.isNumber(this.pagination.pages) ||
|
|
!_.isNumber(this.pagination.total) || !_.isNumber(this.pagination.limit)) {
|
|
throw new errors.IncorrectUsageError({message: i18n.t('warnings.helpers.pagination.valuesMustBeNumeric')});
|
|
}
|
|
|
|
// CASE: The pagination helper should have access to the pagination properties at the top level.
|
|
_.merge(this, this.pagination);
|
|
// CASE: The pagination helper will forward attributes passed to it.
|
|
_.merge(this, options.hash);
|
|
const data = createFrame(options.data);
|
|
|
|
return templates.execute('pagination', this, {data});
|
|
};
|
|
|
|
module.exports = pagination;
|