Missing Helper

charlietilt

I have seen this issue discussed and resolved in other posts but I have tried everything that I have read and I am still getting the error Error occured - Error during rendering report: Missing helper: "isnt"
I have a global_helpers.js asset created with the shared helpers attached to each template checked.
The content of my global_helpers.js is as follows:

var handlebars = require('handlebars');
var HandlebarsIntl = require('handlebars-intl');
HandlebarsIntl.registerWith(handlebars);
var helpers = require('handlebars-helpers')({ handlebars: handlebars });

My template is as follows: (engine: handlebars, recipe: html)

{{#isnt 'foo' 'bar'}}Some random text{{/isnt}}

When I try to run this, I get the following error:

Error occured - Error during rendering report: Missing helper: "isnt"
Stak - /Users/charlie/Code/jsreport/node_modules/jsreport-handlebars/node_modules/handlebars/dist/cjs/handlebars/helpers/helper-missing.js:19
      throw new _exception2['default']('Missing helper: "' + arguments[arguments.length - 1].name + '"');
      ^

Error: Missing helper: "isnt"
    at Object.<anonymous> (/Users/charlie/Code/jsreport/node_modules/jsreport-handlebars/node_modules/handlebars/dist/cjs/handlebars/helpers/helper-missing.js:19:13)
    at Object.eval [as main] (eval at createFunctionContext (/Users/charlie/Code/jsreport/node_modules/jsreport-handlebars/node_modules/handlebars/dist/cjs/handlebars/compiler/javascript-compiler.js:254:23), <anonymous>:5:88)
    at main (/Users/charlie/Code/jsreport/node_modules/jsreport-handlebars/node_modules/handlebars/dist/cjs/handlebars/runtime.js:173:32)
    at ret (/Users/charlie/Code/jsreport/node_modules/jsreport-handlebars/node_modules/handlebars/dist/cjs/handlebars/runtime.js:176:12)
    at ret (/Users/charlie/Code/jsreport/node_modules/jsreport-handlebars/node_modules/handlebars/dist/cjs/handlebars/compiler/compiler.js:525:21)
    at /Users/charlie/Code/jsreport/node_modules/jsreport-handlebars/lib/handlebarsEngine.js:25:14
    at evalmachine.<anonymous>:1:41
    at ContextifyScript.Script.runInContext (vm.js:59:29)
    at ContextifyScript.Script.runInNewContext (vm.js:65:15)
    at Object.runInNewContext (vm.js:135:38)

Then strange thing is that this was working yesterday and just stopped working today.
Any thoughts?

Thanks,
Charlie

charlietilt

Actually, I think I may have figured this one out but not sure. If I remove the first line var handlebars = require('handlebars'); in the global_helpers.js it appears to work again. I think this is because there is a handlebars var already exposed globally and the code I have above is overwriting it and attaching the helpers to the new instance.

charlietilt

That does appear to fix the issue. Not sure why this just started happening.
If this in fact the solution, I think the tip/howto on at the bottom of https://jsreport.net/learn/handlebars might need to be updated.

bjrmatos

thanks for the letting us knowm, we will see what is happening and update the docs if needed, maybe it is jus a special behaviour with global helpers and needs a new section in docs.