我可以使用帮助来创建样式表来覆盖 Magnific Popup ( https://github.com/joshuajansen/magnific-popup-rails ) 中的默认样式表。
我有代码供用户default_profile_id从他们上传的图像中选择他们。我遇到的问题是我需要允许当前用户从他们的页面做出决定的代码。例如，当前用户将鼠标悬停在他们的照片上，并在其上显示“制作个人资料照片”文本 ( https://s18.postimg.cc/arl81snll/mouse.jpg )。我不知道如何创建样式表或修改我所拥有的以便此操作可以工作。
任何有关将此操作添加到照片的帮助将不胜感激。
照片控制器：
def new
@photo = Photo.new
end
def create
@photo = Photo.new(params[:photo])
@photo.user = current_user
if @photo.save
flash[:notice] = "Successfully created photos."
redirect_to :back
else
render :action => 'new'
end
end
def resize(width, height, gravity = 'Center')
manipulate! do |img|
img.combine_options do |cmd|
cmd.resize "#{width}"
if img[:width] < img[:height]
cmd.gravity gravity
cmd.background "rgba(255,255,255,0.0)"
cmd.extent "#{width}x#{height}"
end
end
img = yield(img) if block_given?
img
end
end
def edit
@photo = Photo.find(params[:id])
end
def update
@photo = Photo.find(params[:id])
if @photo.update_attributes(paramas[:photo])
flash[:notice] = "Successfully updated photo."
redirect_to @photo.gallery
else
render :action => 'edit'
end
end
def destroy
@photo = Photo.find(params[:id])
@photo.destroy
flash[:notice] = "Successfully destroyed photo."
redirect_to @photo.gallery
end
def choose_default_photo
@photo = Photo.find params[:photo_id]
current_user.default_photo = @photo
redirect_to '/profile' # or wherever I want to send them
end
end
照片模型：
attr_accessible :title, :body, :gallery_id, :name, :image, :remote_image_url
belongs_to :gallery
has_many :gallery_users, :through => :gallery, :source => :user
belongs_to :user
mount_uploader :image, ImageUploader
LIMIT = 5
validate do |record|
record.validate_photo_quota
end
def validate_photo_quota
return unless self.user
if self.user.photos(:reload).count >= LIMIT
errors.add(:base, :exceeded_quota)
end
end
end
用户模型：
has_many :photos
belongs_to :default_photo, :class_name => "Photo"
after_create :setup_gallery
private
def setup_gallery
Gallery.create(user: self)
end
end
用户控制器：
def new
@user = User.new
end
def show
@user = User.find(params[:id])
end
def destroy
User.find(id_params).destroy
flash[:success] = "User deleted."
redirect_to users_url
end
def choose_default_photo
@photo = Photo.find params[:photo_id]
current_user.default_photo = @photo
redirect_to '/profile'
end
照片表的列是：
id, created_at, updated_at, image, name,user_id
用户表具有以下相关列：
id,default_photo_id (integer)