我决定尝试苗条的模板引擎,但我有奇怪的错误.
ActionView::Template::Error (Unknown line indicator
app/views/layouts/application.html.slim, Line 1
<!DOCTYPE html>
^
):
slim (1.1.1) lib/slim/parser.rb:448:in `syntax_error!'
它出现在所有页面上.例如:
Started GET "/" for 127.0.0.1 at 2012-03-21 09:47:49 +0400
Processing by AuthenticationsController#index as HTML
Authentication Load (0.9ms) SELECT "authentications".* FROM "authentications"
User Load (1.0ms) SELECT "users".* FROM "users" WHERE "users"."id" = 17 LIMIT 1
CACHE (0.0ms) SELECT "users".* FROM "users" WHERE "users"."id" = 17 LIMIT 1
Rendered authentications/index.html.slim within layouts/application (88.4ms)
我有gem 'slim-rails'我的Gemfile和
意见/认证/ index.html.slim:
table
tr
th User
th Provider …有没有人在Chrome中解决textarea身高问题？
在这种简单的情况下:
<div>
<textarea>
</textarea>
</div>
Google Chrome添加了两个像素,因此div.height = textarea.height + 2px.是的,我尝试Eric的"reset.ccs" - 没有用.
PS当然在我的"简单案例"textarea和div有边框,填充和边距0px.
如何使用带骨干的超薄模板？
我在ruby-on-rails应用程序中使用使用eco模板的rails-on-rails gem.但在我的项目中,我使用瘦模板引擎,当然我只想使用一种模板类型.但我怎样才能转向骨干？
来自codebrew的Gem backbone-rails提供erb和haml,所以我想我也可以使用slim.但是怎么样？
我有两个模特:Show和Deal.
class Show < ActiveRecord::Base
has_many :deals, :inverse_of => :show, :dependent => :destroy
...
class Deal < ActiveRecord::Base
belongs_to :show, :inverse_of => :deals
...
当我试图销毁Show时出现此错误:
PG::Error: ERROR: zero-length delimited identifier at or near """"
LINE 1: DELETE FROM "deals" WHERE "deals"."" = $1
为什么列名称为空？在schema.rb中:
create_table "deals", :id => false, :force => true do |t|
t.integer "discount_id"
t.integer "show_id"
end
create_table "shows", :force => true do |t|
t.integer "movie_id"
t.integer "hall_id"
t.datetime "show_time"
t.integer "city_id"
t.integer "price"
end
外键添加到数据库中
CONSTRAINT fk_deals_shows …