{"id": 274161964, "node_id": "MDU6SXNzdWUyNzQxNjE5NjQ=", "number": 101, "title": "TemplateAssertionError: no filter named 'tojson'", "user": {"value": 450244, "label": "eaubin"}, "state": "closed", "locked": 0, "assignee": null, "milestone": null, "comments": 1, "created_at": "2017-11-15T13:47:32Z", "updated_at": "2017-11-15T13:48:55Z", "closed_at": "2017-11-15T13:48:55Z", "author_association": "NONE", "pull_request": null, "body": "I get an exception clicking on the table link: \r\n\r\n```\r\n2017-11-15 08:40:10 - (sanic)[ERROR]: Traceback (most recent call last):\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/sanic/app.py\", line 503, in handle_request\r\n    response = await response\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/datasette/app.py\", line 155, in get\r\n    return await self.view_get(request, name, hash, **kwargs)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/datasette/app.py\", line 219, in view_get\r\n    **context,\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/sanic_jinja2/__init__.py\", line 84, in render\r\n    return html(self.render_string(template, request, **context))\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/sanic_jinja2/__init__.py\", line 81, in render_string\r\n    return self.env.get_template(template).render(**context)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/environment.py\", line 812, in get_template\r\n    return self._load_template(name, self.make_globals(globals))\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/environment.py\", line 786, in _load_template\r\n    template = self.loader.load(self, name, globals)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/loaders.py\", line 125, in load\r\n    code = environment.compile(source, name, filename)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/environment.py\", line 565, in compile\r\n    self.handle_exception(exc_info, source_hint=source_hint)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/environment.py\", line 754, in handle_exception\r\n    reraise(exc_type, exc_value, tb)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/_compat.py\", line 37, in reraise\r\n    raise value.with_traceback(tb)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/datasette/templates/table.html\", line 29, in template\r\n    <pre>params = {{ query.params|tojson(4) }}</pre>\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/environment.py\", line 515, in _generate\r\n    return generate(source, self, name, filename, defer_init=defer_init)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 62, in generate\r\n    generator.visit(node)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/visitor.py\", line 38, in visit\r\n    return f(node, *args, **kwargs)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 849, in visit_Template\r\n    self.blockvisit(block.body, block_frame)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 492, in blockvisit\r\n    self.visit(node, frame)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/visitor.py\", line 38, in visit\r\n    return f(node, *args, **kwargs)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 1172, in visit_If\r\n    self.blockvisit(node.body, if_frame)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 492, in blockvisit\r\n    self.visit(node, frame)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/visitor.py\", line 38, in visit\r\n    return f(node, *args, **kwargs)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 1353, in visit_Output\r\n    self.visit(argument, frame)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/visitor.py\", line 38, in visit\r\n    return f(node, *args, **kwargs)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 1565, in visit_Filter\r\n    self.fail('no filter named %r' % node.name, node.lineno)\r\n  File \"/Users/e/anaconda3-4.2.0/lib/python3.5/site-packages/jinja2/compiler.py\", line 427, in fail\r\n    raise TemplateAssertionError(msg, lineno, self.name, self.filename)\r\njinja2.exceptions.TemplateAssertionError: no filter named 'tojson'\r\n```", "repo": {"value": 107914493, "label": "datasette"}, "type": "issue", "active_lock_reason": null, "performed_via_github_app": null, "reactions": "{\"url\": \"https://api.github.com/repos/simonw/datasette/issues/101/reactions\", \"total_count\": 0, \"+1\": 0, \"-1\": 0, \"laugh\": 0, \"hooray\": 0, \"confused\": 0, \"heart\": 0, \"rocket\": 0, \"eyes\": 0}", "draft": null, "state_reason": "completed"}