exactly 
laiboonh
Chrichton
Hi all.
I am missing an else option.
I have a form_component to render new and existing categories.
Do I have to write is this way?
<.simple_form
for={@form}
id={"category-form-#{@category_id}"}
phx-submit="save"
phx-change="validate"
phx-target={@myself}
>
<h1 :if={@category_id}>{gettext("Edit Category")}</h1>
<h1 :if={@category_id == nil}>{gettext("New Category")}</h1>
<.input field={@form[:name]} label={gettext("Name")} />
<.input field={@form[:description]} label={gettext("Desription")} type="textarea" />
<:actions>
<.button>{gettext("Submit")}</.button>
</:actions>
</.simple_form>
or is there a more elegant solution?
Thinks for your reply, Heiko
0
olivermt
There is no shorthand for :else
But you can add an else like this I think?
(Not tested, am on phone)
<%= if @some_condition do %>
<div>...</div>
<%= else do %>
<p>…</p>
<% end %>
0
kokolegorille
sodapopcan
Annnnd just for posterity since they are on latest:
{if @some_condition do}
...
{else}
...
{end}
2
kokolegorille
sodapopcan
Though I’m no JS-hater.
LostKobrakai
sodapopcan
Whoa wha… damn, sorry for the misinformation. I could swear I’ve done this! But apparently not. Dang. I’m having a Mandela moment here.
0
codeanpeace
If you take a look at the form component generated by mix phx.gen.live, it sets a @page_title assign instead of handling the conditional logic in the heex template.
If you want to keep it in the template, here are some other options:
# `if/2` with a one liner keyword list, balances clarity and conciseness, my pick of the bunch
<h1>{if @category_id, do: gettext("Edit Category"), else: gettext("New Category")}</h1>
# pseudo-ternary, very concise but arguably too clever, also unexpected gotcha if middle bit is false-y when conditional is truth-y
<h1>{@category_id && gettext("Edit Category") || gettext("New Category")}</h1>
# not my personal preference, but for the sake of completeness
<h1 :if={@category_id}>{gettext("Edit Category")}</h1>
<h1 :if={@category_id == nil}>{gettext("New Category")}</h1> # or
<h1 :if={is_nil(@category_id)}>{gettext("New Category")}</h1> # or
<h1 :if={!@category_id}>{gettext("New Category")}</h1>
1