我的图像调整大小无法正常工作。我也安装了imagemagick。这是我当前图像的外观。
我希望它们都是相同大小的图像
<% products.each do |product| %>
<div class="col-md-4">
<div class="panel panel-default home">
<div class="panel-heading preview">
<%= image_tag product.cover_photo(:medium) %>
</div>
<div class="panel-body">
<%= link_to product.name, product %><br/>
$<%= product.price %> - <%= product.weight %><br/>
<%= product.strain_type %><br/>
<%= product.product_type %><br/>
<span style="color: red;">THC: <%= product.percentage %>%</span>
</div>
</div>
</div>
<% end %>
这是我的带回形针的photo.rb文件
class Photo < ApplicationRecord
belongs_to :product
# IMAGES FOR PRODUCTS
has_attached_file :image, styles: { medium: "350x350>", thumb: "100x100>" }
validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/
end
我的产品模型中有一个方法
class Product < ApplicationRecord
enum instant: {Instant: 0, Request: 1}
belongs_to :user
has_many :photos, dependent: :destroy
has_many :orders, dependent: :destroy
has_many :guest_reviews , dependent: :destroy
geocoded_by :address
after_validation :geocode, if: :address_changed?
def cover_photo(size)
if self.photos.length > 0
self.photos[0].image.url(size)
else
"blank.jpg"
end
end
def thumbnail input
return self.photos[input].variant(resize: '625x415!').processed
end
def average_rating
guest_reviews.count == 0 ? 0 : guest_reviews.average(:star).round(2).to_i
end
end
答案 0 :(得分:0)
使用尾随(#),将对图片进行集中裁切,以确保达到要求的尺寸。
class Photo < ApplicationRecord
belongs_to :product
# IMAGES FOR PRODUCTS
has_attached_file :image,
styles: { medium: "350x350#", thumb: "100x100#" },
convert_options: { :thumb => "-quality 60 -strip" }
validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/
end
附加说明:
convert_options
设置质量,以使其更小并且加载更快