id,page,ref,title,content,breadcrumbs,references
plugin_hooks:plugin-hook-prepare-jinja2-environment,plugin_hooks,plugin-hook-prepare-jinja2-environment,"prepare_jinja2_environment(env, datasette)","env  - jinja2 Environment 
                     
                         The template environment that is being prepared 
                     
                 
                 
                     datasette  -  Datasette class 
                     
                         You can use this to access plugin configuration options via  datasette.plugin_config(your_plugin_name) 
                     
                 
             
             This hook is called with the Jinja2 environment that is used to evaluate
                Datasette HTML templates. You can use it to do things like  register custom
                    template filters , for
                example: 
             from datasette import hookimpl


@hookimpl
def prepare_jinja2_environment(env):
    env.filters[""uppercase""] = lambda u: u.upper() 
             You can now use this filter in your custom templates like so: 
             Table name: {{ table|uppercase }} 
             This function can return an awaitable function if it needs to run any async code. 
             Examples:  datasette-edit-templates","[""Plugin hooks""]","[{""href"": ""http://jinja.pocoo.org/docs/2.10/api/#custom-filters"", ""label"": ""register custom\n                    template filters""}, {""href"": ""https://datasette.io/plugins/datasette-edit-templates"", ""label"": ""datasette-edit-templates""}]"