我正在使用Paperclip上传图像的简单项目.在我尝试将S3与Paperclip集成之前,一切都运行良好.在"上传"用户的图像后,我收到NoMethodError (undefined method 'match' for nil:NilClass):错误消息.这只有在我的S3配置运行时才会发生 - 如果我将文件评论完全上传.
我的配置:
development.rb:
....
....
config.paperclip_defaults = {
:storage => :s3,
:s3_credentials => {
:bucket => ENV['AWS_BUCKET_ID'],
:access_key_id => ENV['AWS_ACCESS_KEY_ID'],
:secret_access_key => ENV['AWS_SECRET_ACCESS_KEY']
}
}
我的型号:
class User < ActiveRecord::Base
has_attached_file :image_file, default_url: "/myapp/images/:style/missing.png"
validates_attachment_file_name :image_file, matches: [/png\Z/, /jpeg\Z/, /tiff\Z/, /bmp\Z/, /jpg\Z/]
控制台的整个错误输出:
NoMethodError (undefined method `match' for nil:NilClass):
app/controllers/images_controller.rb:33:in `block in create'
app/controllers/images_controller.rb:32:in `create'
我试过的事情:
我将AWS密钥和存储桶名称直接添加到代码中,而不是作为环境变量.
如上所述,我在我的环境文件中注释掉了AWS配置,它似乎完美无缺.
值得一提的是,我之前安装了fog宝石以开始配置Google云端存储,但决定坚持使用S3.我曾经gem uninstall fog删除了宝石,但似乎有一些依赖关系留在后面.
我正在尝试将Rails应用程序部署到Heroku。自从我在那里部署任何东西已经有一段时间了，但是我对这里发生的事情一无所知。
这是一个相当基本的Rails 5应用程序。部署顺利通过Gemfile，然后失败，并出现错误，要求我安装Bundler v 2.0.1。这是日志的有趣之处：
remote: Fetching devise 4.6.2
remote: Installing sass-rails 5.0.7
remote: Installing devise 4.6.2
remote: Bundle complete! 26 Gemfile dependencies, 78 gems now installed.
remote: Gems in the groups development and test were not installed.
remote: Bundled gems are installed into `./vendor/bundle`
remote: Post-install message from i18n:
remote:
remote: HEADS UP! i18n 1.1 changed fallbacks to exclude default locale.
remote: But that may break your application.
remote:
remote: Please check your Rails app for 'config.i18n.fallbacks = true'. …我正在处理一个文件夹里面有几个图像的项目.我有Bootstrap正在处理我的项目,并试图使用本教程在旋转木马上工作.它似乎非常适合我的需求,但我很难将它混合到我的Ruby视图中.这是我到目前为止所得到的:
<div id="myCarousel" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<% @patient.images.each do |image| %>
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<% end %>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<% @patient.images.each do |image| %>
<%= image_tag image.image_file.url %>
<% end %>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span> …我正在努力建立我的邮件,但我一直在努力:
参数个数错误(0表示1)
叫我疯了,但我觉得我正确定义了一切:
控制器(为简洁而截断):
def create
@cms484 = Cms484.new(cms484_params)
respond_to do |format|
if @cms484.save
SendLink.message(@cms484).deliver_later
format.html { redirect_to cms484s_path, notice: 'Cms484 was successfully created.' }
format.json { render :show, status: :created, location: @cms484 }
else
format.html { render :new }
format.json { render json: @cms484.errors, status: :unprocessable_entity }
end
end
SendLink.rb:
class SendLink < ApplicationMailer
def message(cms484)
@cms484 = cms484
mail(
:subject => 'Hello from Postmark',
:to => @cms484.recipient ,
:from => 'info@mysite.com',
:html_body => '<strong>Hello</strong> user!.',
end
end
任何人都能看到大海捞针还是我完全错过了其他东西？ …
我有一个具有付费布尔属性的发票模型.帐户和发票之间存在关联,我只想在视图中显示未付款的发票.
我用它来显示所有发票:
<table class="table">
<thead>
<tr>
<th>Invoice Number</th>
<th>Invoice Date</th>
<th>Invoice Total</th>
</tr>
</thead>
<tbody>
<% @account.invoices.each do |invoice| %>
<tr>
<td><%= invoice.id%> </td>
<td><%= invoice.created_at.time.to_formatted_s(:long)%> Zulu </td>
<td><%= invoice.total %></td>
</tr>
<% end %>
</tbody>
但我不确定如何将结果限制在只paid显示nil的发票的地方.我试过:<% @account.invoices.each do |invoice| unless @account.invoices.paid == 'nil' %>但是遇到了错误.显然我的语法错了.有什么建议？