Ruby-on-rails 更改 simple_form 中字段允许的大小和最大长度
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change size and maxlength allowed for a field in simple_form
提问by Omnipresent
How can I change the size and max allowed characters for a field using Simple Forms. I've tried following but does not work:
如何使用简单表单更改字段的大小和最大允许字符数。我试过以下但不起作用：
<%= f.input :lastname, :size => 40, :max => 4 %>
I know there is a default_input_sizein initializers/simple_form.rbhowever, I don't want to change the size globally but just on few fields.
我知道有一个default_input_sizeininitializers/simple_form.rb但是，我不想在全局范围内更改大小，而只是在几个字段上更改。
How would I do this?
我该怎么做？
回答by Omnipresent
<%= f.input :lastname, input_html: { maxlength: 15, size: 40} %>
回答by Sergey Kishenin
try to use <%= f.input :lastname, :input_html => {:size => 40, :maxlength => 4} %>
尝试使用 <%= f.input :lastname, :input_html => {:size => 40, :maxlength => 4} %>
回答by Leo Lukin
Or try to use CSS <%= f.input :lastname, :input_html => {:style => 'width: 250px'} %>
或者尝试使用 CSS <%= f.input :lastname, :input_html => {:style => 'width: 250px'} %>
回答by Pranesha Bunsee
Adding size and maxlength in input_html had no effect for me. I am using "input_field" instead of "input". So the following worked:
在 input_html 中添加 size 和 maxlength 对我没有影响。我使用的是“input_field”而不是“input”。所以以下工作：
<%= form.input_field :effective_from_date,
as: :string,
class: 'activate-datepicker',
maxlength: 11,
size: 11,
label: false %>
回答by Dominic
It's possible you declared your css for input widths set to 'auto'. Remove that declaration, and then customize.
您可能将输入宽度的 css 声明为“自动”。删除该声明，然后自定义。
