问题
I want to add a default value to a text-input field using simple-form.
With :placeholder it is not used as default....
<%= f.input :user, :placeholder => 'user@domain.com' %>
回答1:
<%= f.input :user, :input_html => { :value => 'user@domain.com' } %>
回答2:
You can simply do:
<% f.text_field, value: 'user@admin.com' %>
text_field is good if you are working with form search gem like Ransack.
回答3:
On rails 5.1 placeholder: 'aaaaaaaaaaa' works. E.g.
<%= f.input :user, :placeholder => 'user@domain.com' %>
will work on rails 5.1
回答4:
You can do this in the controller and keep data details out of your forms. Instead of this:
def new
@article = Article.new
end
you can do this:
def new
# hardcode default values (as shown) or generate on the fly
@article = Article.new(title: "10 Best Things")
end
The "new" form will open with the default (pre-set) values filled in. This should work with simple-form, plain old Rails, or any other form generator that does does things the Rails way..
回答5:
You can try this option:
<%= f.input :user, label: 'user@domain.com' %>
来源：https://stackoverflow.com/questions/11871827/adding-a-default-value-to-text-input-in-simple-form