Heroku的控制台:我怎么渲染@使用JSON photo.errors(使用Rails的4 dropzone.js)
开始POST “/照片”
处理由PhotosController#创建为JSON
参数:{“utf8”=>“✓”,“authenticity_token”=>“D5pc72xeJ6J/g ==”,“photo”=> {“title”=>“fffffffffffffffffffffffffffffffffffffffffffffffffffff”,“tag_list”=> [“”] “picture”=>#,@ original_filename =“size.jpg”,@ content_type =“image/jpeg”,@ headers =“Content-Disposition:form-data; name = \”photo [picture] \“; filename = \“size.jpg \”\ r \ nContent-Type:image/jpeg \ r \ n“>},”null“=>”“,”commit“=>”上传“}
已完成500内部服务器错误941毫秒(ActiveRecord:13.9ms)
ArgumentError('#,@messages = {:title => [“太长(最多30个字符)”]}>'不是ActiveModel兼容对象。它必须实现:to_partial_path):
应用程序/控制器/ photos_controller.rb:40:在`块(2级)中创建”
PhotosController
def create
@photo = current_user.photos.build(photo_params)
respond_to do |format|
if @photo.save
format.html { redirect_to @photo, notice: 'Item was successfully created.' }
format.json { render json: @photo }
else
format.html { render 'new'}
**rb:40** (format.json { render @photo.errors, status: :unprocessable_entity }
end
end
end
dropzonephotos .js
$(document).ready(function() {
var dropzone;
Dropzone.autoDiscover = false;
dropzone = new Dropzone('#dropform', {
maxFiles: 2,
maxFilesize: 3,
paramName: 'photo[picture]',
headers: {
"X-CSRF-Token": $('meta[name="csrf-token"]').attr('content')
},
addRemoveLinks: true,
clickable: '.dz-default.dz-message',
previewsContainer: '.dz-default.dz-message',
thumbnailWidth: 200,
thumbnailHeight: 200,
parallelUploads: 100,
autoProcessQueue: false,
uploadMultiple: false
});
$('#item-submit').click(function(e) {
e.preventDefault();
e.stopPropagation();
if (dropzone.getQueuedFiles().length > 0) {
return dropzone.processQueue();
}
else {
return $('#dropform').submit();
}
});
return dropzone.on('success', function(file, responseText) {
return window.location.href = '/photos/' + responseText.id;
});
return dropzone.on('error', function(file, errorMessage, xhr) {
console.log('error');
});
});
没有错误当验证失败时,在视图中呈现视图。在dropzone缩略图上方只有一个“X”,并在悬停“内部服务器错误”时显示一条消息。缩略图仍显示在视图中,但它实际上已被删除。如果我再次点击提交,表单将被处理为html,因为dropzone/no json中没有照片提交。
请参阅我的回答:http://stackoverflow.com/questions/34820853/dropzone-js-and-form-validation/39059003#39059003 – Kaktusiarz