如何解决Rails - 我的“创建/新建”方法不起作用
我创建了一个表单,以便用户可以将新图片添加到网站目录中,但由于某些原因它不起作用。填写完表格后,我点击“提交”按钮,但没有任何反应,我只是停留在同一页面上(并且我没有任何错误消息......)。 我不认为错误来自我的控制器,因为当我在控制器的“创建”方法中添加 raise 关键字时没有任何反应。
我确定这是一个业余错误……但我看不出它是什么。感谢您的帮助!
class Picture < ApplicationRecord
validates :name,presence: true
has_many_attached :photo
end
new.html.erb / 这是我的表格:
<%= form_for(@picture) do |f| %>
<div class="form-group">
<%= f.label :name,"Please indicate the name" %>
<%= f.text_field :name,class:"form-control",placeholder:"(mandatory field)" %>
</div>
<div class="form-group">
<%= f.label :description,"Add a description" %>
<%= f.text_area :description,class:"form-control" %>
</div>
<div class="form-group">
<div class="row">
<div class="col">
<%= f.label :category,"Add a category" %>
<%= f.text_field :category,class:"form-control" %>
</div>
<div class="col">
<%= f.label :price,"Indicate the price (when applicable)" %>
<%= f.number_field :price,placeholder:"0,00$ CAD" %>
</div>
</div>
</div>
<div class="form-group">
<div class="row">
<div class="col">
<p>Where do you want to add this item?</p>
<div>
<%= f.check_Box :is_home_item %>
<%= f.label :is_home_item,"Homepage" %>
</div>
<div>
<%= f.check_Box :is_portfolio_item %>
<%= f.label :is_portfolio_item,"Work" %>
</div>
<div>
<%= f.check_Box :is_sketchbook_item %>
<%= f.label :is_sketchbook_item,"Sketchbook" %>
</div>
<div>
<%= f.check_Box :is_shopping_item %>
<%= f.label :is_shopping_item,"Shopping" %>
</div>
</div>
<div class="col">
<div class="form-group">
<%= f.label :photo,"Select your picture" %>
<%= f.file_field :photo,class:"form-control-file" %>
</div>
</div>
</div>
</div>
<div class="form-group">
<%= f.submit class:"btn btn-lg btn-primary" %>
</div>
<% end %>
pictures_controller.rb /
class PicturesController < ApplicationController
def new
@picture = Picture.new
end
def create
@picture = Picture.new(picture_params)
if @picture.save
redirect_to root_path(@picture),notice: "Picture was successfully created"
else
render :new
end
end
private
def picture_params
params.require(:picture).permit(:name,:description,:category,:price,:is_home_item,:is_portfolio_item,:is_sketchbook_item,:is_shopping_item,:photo)
end
end
And here is the text I got on my local server console
这是我的表单的 HTML 输出:
<form>
<input type="hidden" name="authenticity_token" value="7MxWbzbltjXcAx2dvgRwIu07WMpyjPQji6LI6ELifMZODLJyMBucNApnPRk8vsjshSEjyMMenDUfvDw6pN+/4Q==">
<div class="form-group">
<label for="picture_name">Indicate the name</label>
<input class="form-control" placeholder="(mandatory field)" type="text" name="picture[name]" id="picture_name">
</div>
<div class="form-group">
<label for="picture_description">Add a description</label>
<textarea class="form-control" name="picture[description]" id="picture_description"></textarea>
</div>
<div class="form-group">
<div class="row">
<div class="col">
<label for="picture_category">Add a category</label>
<input class="form-control" type="text" name="picture[category]" id="picture_category">
</div>
<div class="col">
<label for="picture_price">Indicate the price (when applicable)</label>
<input class="form-control" placeholder="0,00$ CAD" type="number" name="picture[price]" id="picture_price">
</div>
</div>
</div>
<div class="form-group">
<div class="row">
<div class="col">
<p>Where do you want to add your picture?</p>
<div>
<input name="picture[is_home_item]" type="hidden" value="0"><input type="checkBox" value="1" name="picture[is_home_item]" id="picture_is_home_item">
<label for="picture_is_home_item">Homepage</label>
</div>
<div>
<input name="picture[is_portfolio_item]" type="hidden" value="0"><input type="checkBox" value="1" name="picture[is_portfolio_item]" id="picture_is_portfolio_item">
<label for="picture_is_portfolio_item">Work</label>
</div>
<div>
<input name="picture[is_sketchbook_item]" type="hidden" value="0"><input type="checkBox" value="1" name="picture[is_sketchbook_item]" id="picture_is_sketchbook_item">
<label for="picture_is_sketchbook_item">Sketchbook</label>
</div>
<div>
<input name="picture[is_shopping_item]" type="hidden" value="0"><input type="checkBox" value="1" name="picture[is_shopping_item]" id="picture_is_shopping_item">
<label for="picture_is_shopping_item">Shopping</label>
</div>
</div>
<div class="col">
<div class="form-group">
<label for="picture_photo">Select your picture</label>
<input class="form-control-file" type="file" name="picture[photo]" id="picture_photo">
</div>
</div>
</div>
</div>
<div class="form-group">
<input type="submit" name="commit" value="Create Picture" class="btn btn-lg btn-primary" data-disable-with="Create Picture">
</div>
我的路线:
Rails.application.routes.draw do
devise_for :users
# Pages routes
root to: 'pages#home'
get 'about',to: 'pages#about'
get 'portfolio',to: 'pages#portfolio'
get 'sketchbook',to: 'pages#sketchbook'
get 'shopping',to: 'pages#shopping'
# Pictures routes
resources :pictures
end
And these are my routes in the Terminal
解决方法
不太清楚为什么会发生这种情况,但不推荐使用 java.sql.SQLType
,因此您应该将其替换为 form_for
。
您可以使用模型,例如 form_with
和 form_with,如the docs 中所述。
@picture
这应该创建一个如下所示的表单 DOM 对象:
<%= form_with(model: @picture) do |form| %>
# fields
<% end %>
如果由于某种原因没有,你总是可以在 form_with 中传递一个 <form action="/pictures" method="post" accept-charset="UTF-8" >
<input name="authenticity_token" type="hidden" value="..." />
...
</form>
(即 method: :post
)。
目前,您得到了带有单数 has_many_attached
的 photo
。这似乎不是正确的语法。您是否尝试更改为 has_many_attached :photos
并修改 picture_params
以将照片作为数组 photos: []
传递?
或者如果您想附加一张照片,那么您应该尝试在图片模型中更改为 has_one_attached :photo
。
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