How can i pass {{app.user}} into Javascript ?
for now I do a block like;
<script type="text/javascript">
var app_name = '{{ app_name }}';
var app_url= '{{ app_url }}';
var app_description= '{{ app_description }}';
var app_email= '{{ app_email }}';
var app_title= '{{ app_title }}';
var app_dominio= '{{ app_dominio }}';
var env = '{{ app.environment }}';
</script>
where these parameters are set in config.yml
In Twig templates variables can be accessed using double curly braces notation {{ variableName }} .
Twig is a modern template engine for PHP Fast: Twig compiles templates down to plain optimized PHP code. The overhead compared to regular PHP code was reduced to the very minimum. Secure: Twig has a sandbox mode to evaluate untrusted template code.
I don't understand what's exactly your problem with the solution you choose, it should work well with {{ app.user }} except that app.user is an object, so you should have a toArray function into your user and call :
app_user = {{ app.user.toArray|json_encode() }};
Or call each parameter of the user like {{ app.user.id }}
Documentation : https://twig.sensiolabs.org/doc/filters/json_encode.html
You should use json_encode for your variables above, if you have a quote into one of your string it will break your javascript.
Example for profile:
<script type="text/javascript">
nickname = {{ profile.nickname|json_encode() }}; // Nickname will be a string
// 2nd solution if you have more informations related to profile
profile = {
nickname: {{ profile.nickname|json_encode() }},
lastname: {{ profile.lastname|json_encode() }}
};
// Profile is now an object with a nickname property.
// use profile.nickname on your javascripts
</script>
The accepted solution doesn't work (anymore ?) because of twig autoescaping the outputs, changing all the JSON "
with "
;.
Equivalent would now have to use the raw
filter:
<script type="text/javascript">
nickname = {{ profile.nickname|json_encode()|raw }}; // Nickname will be a string
// 2nd solution if you have more informations related to profile
profile = {
nickname: {{ profile.nickname|json_encode()|raw }},
lastname: {{ profile.lastname|json_encode()|raw }}
};
// Profile is now an object with a nickname property.
// use profile.nickname on your javascripts
</script>
That being said, directly printing the raw JSON into the javascript may cause some problems, has in this configuration:
<script>
var myvar = {{ '{"test": "</script>"}'|raw }};
</script>
The </script>
tag in the JSON would be interpreted by the HTML parser, resulting in a broken script.
The truly correct way to do this would rather be to print the JSON as an escaped string, and then parse it within the js script:
<script>
var myvar = JSON.parse('{{ '{"test": "</script>"}'|e('js') }}');
</script>
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