Hi all,
Just getting started with erlyweb. I'm currently using the same form
in my views for both new and edit:
<%@ new(Friend) %>
<h2>Create Friend</h2>
<b><% friends:value(friends:first_name(Friend)) %></b><br/>
<form method="post" action="/friends/create">
<input type="submit" value="Create" />
</form>
<% a([".."], "Back") %>
<%@ edit({Friend}) %>
<h2>Edit Friend</h2>
<form method="post" action="/friends/edit">
<% friend_form(Friend) %>
<input type="submit" value="Edit" />
</form>
<% a([".."], "Back") %>
<%@ friend_form(Friend) %>
<table>
<% friend_field(Friend, first_name) %>
<% friend_field(Friend, last_name) %>
<% friend_field(Friend, picture) %>
</table>
<%@ friend_field(Friend, FieldName) %>
<tr>
<td>
<input type="text"
name="<% atom_to_list(FieldName) %>"
value="<% friends:FieldName(Friend) %>" />
</td>
</tr>
This doesn't work for the new page since the FieldName for a Friend is
empty. What do I do so that I can use the same form code for both new
and edit, so that it doesn't crash the code?
I've tried using this function instead of calling friends:FieldName
(Friend) directly:
value(Val) ->
case Val of
undefined ->
"";
_ ->
Val
end.
But it craps out with:
ERROR erlang code crashed:
File: appmod:0
Reason: {badarg,[{erlydb_base,get,2},
{erlyweb,'-render_response_body/7-fun-0-',6},
{erlyweb,'-render_response_body/7-fun-1-',3},
{lists,map,2},
{erlyweb,render_response_body,7},
{erlyweb,handle_request,6},
{yaws_server,deliver_dyn_part,8},
{yaws_server,aloop,3}]}
Req: {http_request,'GET',{abs_path,"/myapp/friends/new"},{1,1}}
What am I doing wrong?
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