Create a reusable module

Create apps_user/zotonic_mod_garden with the following files. This example adds a discoverable module without starting an extra process.

rebar.config:

{erl_opts, [debug_info]}.

src/zotonic_mod_garden.app.src:

{application, zotonic_mod_garden, [
    {description, "Community garden features"},
    {vsn, "0.1.0"},
    {registered, []},
    {applications, [kernel, stdlib, zotonic_core]},
    {env, []},
    {modules, []}
]}.

src/mod_garden.erl:

-module(mod_garden).
-mod_title("Garden").
-mod_description("Community garden features.").
-mod_prio(500).

Run make from the Zotonic workspace root. On the running development node, use bin/zotonic update to refresh discovery. Open module management in the site's admin and activate Garden.

Check that the module is active. Add the model from Expose data through a model for a first data lookup, and put templates in priv/templates. Keep installation hooks and observers in the main module; move domain logic into models or support modules.