如何在 simple_form gem 中使用 Bootstrap 的输入组

sar*_*unw 3 ruby-on-rails simple-form simple-form-for

环境

  • 红宝石 2.5.1
  • 导轨 5.2.1
  • 简单表格 4.0.1

当前行为

我遵循http://simple-form-b​​ootstrap.plataformatec.com.br/examples/input_group 中的示例

我开始<%= simple_form_for app, wrapper: :input_group do |f| %>并得到Couldn't find wrapper with name input_group,所以我取消注释

config.wrappers :input_group, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
    b.use :html5
    b.use :placeholder
    b.optional :maxlength
    b.optional :minlength
    b.optional :pattern
    b.optional :min_max
    b.optional :readonly
    b.use :label, class: 'form-control-label'
    b.wrapper :input_group_tag, tag: 'div', class: 'input-group' do |ba|
      ba.optional :prepend
      ba.use :input, class: 'form-control', error_class: 'is-invalid', valid_class: 'is-valid'
      ba.optional :append
    end
    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
  end
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simple_form_bootstrap.rb

undefined method为类获取附加' SimpleForm::Inputs::StringInput'

这方面的问题 <%= f.input :subdomain, append: "example.com" %>

我该如何使用它,它甚至支持 simple_form 吗?不知道他们为什么注释掉那块代码。

PGi*_*ill 6

create config/initializers/simple_form_component.rb

module InputGroup
  def prepend(wrapper_options = nil)
    span_tag = content_tag(:span, options[:prepend], class: "input-group-text")
    template.content_tag(:div, span_tag, class: "input-group-prepend")
  end

  def append(wrapper_options = nil)
    span_tag = content_tag(:span, options[:append], class: "input-group-text")
    template.content_tag(:div, span_tag, class: "input-group-append")
  end
end

# Register the component in Simple Form.
SimpleForm.include_component(InputGroup)
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