pkolt / express-nunjucks Goto Github PK

Is it possible to retrive the Nunjucks environment? I would like to add custom filters as in

var env = new nunjucks.Environment(); // <-- ERROR with express-nunjucks
env.addFilter('shorten', function(str, count) {
    return str.slice(0, count || 5);
});

Thanks

I'm also getting this warning:

[nunjucks] Warning: the "default" filter was used without specifying the type of comparison. 2.0 changed the default behavior from boolean (val ? val : def) to strictly undefined, so you should make sure that doesn't break anything. Be explicit about this to make this warning go away, or wait until 2.1. See http://mozilla.github.io/nunjucks/templating.html#defaultvalue-default-boolean

from that URL:

default(value, default, [boolean])

(aliased as d)

If value is strictly undefined, return default, otherwise value. If boolean is true, any JavaScript falsy value will return default (false, "", etc)

In version 2.0, this filter changed the default behavior of this filter. Previously, it acted as if boolean was true by default, and any falsy value would return default. In 2.0 the default is only an undefined value returns default. You can get the old behavior by passing true to boolean, or just use value or default. 2.0 will show a warning if boolean is not passed, but we will remove this warning in the next version.

When I setup a custom filter and use it inside a Macro it returns errors. If using it outside the macro it works.

const filters = {
  shorten: function(str, count) {
    return str.slice(0, count || 5);
  }
};

const njk = Nunjucks(app, {
  autoescape: true,
  throwOnUndefined: false,
  trimBlocks: false,
  lstripBlocks: false,
  tags: {},
  filters: filters
});

And then while using "shorten"

{{ item.name | shorten }}

# Inside macro
{{ item.name | shorten }}
TypeError: Cannot read property 'slice' of undefined

Any import inside the "conditions" stops the template rendering.
See below, anything is printed.

{% if enabledNewFooter %}
  {% include "new_footer.html" %}
{% else %}
  {% include "footer.html" %}
{% endif %}

It happens in both blocks (if / else), anything is rendered.

I'm using the following way temporarily:

{% set templateFile = 'a.html' if condition else 'b.html' %}
{% include "directory/" + templateFile %}

While trying to add a custom filter. I getting an error Cannot read property 'SafeString' of undefined because nunjucks want defined.

const nunjucksExpress = require('express-nunjucks');

...

nunjucksExpress.ready().then(function (env) {
    env.addFilter('inspect', function (data) {
        return new nunjucksExpress.nunjucks.runtime.SafeString('<pre><code>' + JSON.stringify(data, undefined, 2) + '</code></pre>');
    });
});

I have submitted a PR: #3
No sure if that's the correct way. Happy to discuss.

Is it possible at the moment to change .html extension of templates to .nunjucks?

I'm getting this warning:

[nunjucks] Warning: you passed a boolean as the second argument to FileSystemLoader, but it now takes an options object. See http://mozilla.github.io/nunjucks/api.html#filesystemloader