无法以铁轨形式添加日期
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我想以rails形式添加日期。例如
def create
@land=current_user.lands.build(land_params)
if @land.save
session[:land_id]=@land.id
flash[:success]="Success"
redirect_to lands_path
else
flash[:error]="Fail!!"
render 'new'
end
end
schema.rb
create_table "lands", force: :cascade do |t|
t.date "DateStart"
t.date "DateEnd"
end
new.html.erb
<%= form_for @land do |f| %>
<p>Information</p>
<%= f.label :Start %><br />
<%= f.date_select :DateStart, :default => @DateStart, :order => [:month, :day, :year] %>
<%= f.label :End %><br />
<%= f.date_select :DateEnd,:default => @DateEnd,:order => [:month, :day, :year]%>
<% end %>
show.html.erb
<p>Start : <%= @land.DateEnd %></p>
<p>End : <%= @land.DateEnd %></p>
Land.controller
def show
@land= Land.find(params[:id])
end
但我的show.html.erb中没有打印出任何内容。当我检查数据库时,我的DateStart和DateEnd是零。我不知道有什么不对。你能给我一些建议吗?谢谢
您可以按照以下方式操作
def create
@land= Land.new(land_params)
@land.user = current_user
if @land.save
flash[:success] = 'Land was successfully created.'
redirect_to lands_path #=> or anything
else
flash[:error] = 'Land was not created successfully .'
redirect_to lands_path #=> or anything
end
end
我认为这是有用的
您确保在控制器标头上添加此before_action :authenticate_user!
,无法在未经身份验证的情况下访问用户
希望能有所帮助
你可以按照我的回答 -
方法 - 1.与用户和土地模型无关。
lands_controller.rb文件看起来像 -
class LandsController < ApplicationController
def new
@DateStart = Date.today
@DateEnd = Date.today + 2.days
@land = Land.new
end
def create
@land = Land.new(land_params)
if @land.save
session[:land_id] = @land.id
flash[:success]= "Success"
redirect_to lands_path
else
flash[:error] = "Fail!!"
render 'new'
end
end
def show
@land= Land.find(params[:id])
end
def land_params
params.require(:land).permit(:DateStart, :DateEnd)
end
end
数据库架构文件看起来像 - (schema.rb)
create_table "lands", force: :cascade do |t|
t.date "DateStart"
t.date "DateEnd"
end
Lands controller新动作视图文件 - (app / views / lands / new.html.erb)
<%= form_for @land do |f| %>
<p>Information</p>
<%= f.label :Start %><br />
<%= f.date_select :DateStart, :default => @DateStart, :order => [:month, :day, :year] %>
<%= f.label :End %><br />
<%= f.date_select :DateEnd,:default => @DateEnd,:order => [:month, :day, :year]%>
<%= f.submit "Submit" %>
<% end %>
Lands查看页面(app / views / lands / show.html.erb)
<p>Start : <%= @land.DateEnd %></p>
<p>End : <%= @land.DateEnd %></p>
方法 - 2.与用户和土地模型的关联。
lands_controller.rb文件看起来像 - (app / controllers / lands_controller.rb)
class LandsController < ApplicationController
before_action :authenticate_user!
def new
@DateStart = Date.today
@DateEnd = Date.today + 2.days
@land = current_user.lands.build
end
def create
@land = current_user.lands.build(land_params)
if @land.save
session[:land_id] = @land.id
flash[:success]= "Success"
redirect_to lands_path
else
flash[:error] = "Fail!!"
render 'new'
end
end
def show
@land= Land.find(params[:id])
end
def land_params
params.require(:land).permit(:DateStart, :DateEnd)
end
end
数据库架构文件看起来像 - (schema.rb)
create_table "lands", force: :cascade do |t|
t.date "DateStart"
t.date "DateEnd"
t.index ["user_id"], name: "index_rooms_on_user_id"
end
create_table "users", force: :cascade do |t|
t.string "email", default: "", null: false
t.string "encrypted_password", default: "", null: false
t.string "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count", default: 0, null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string "current_sign_in_ip"
t.string "last_sign_in_ip"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["email"], name: "index_users_on_email", unique: true
t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
end
用户模型看起来像 - (app / models / user.rb)
class User < ApplicationRecord
has_many :lands
end
土地模型看起来像 - (app / models / land.rb)
class Land < ApplicationRecord
belongs_to :user
end
Lands controller新动作视图文件 - (app / views / lands / new.html.erb)
<%= form_for @land do |f| %>
<p>Information</p>
<%= f.label :Start %><br />
<%= f.date_select :DateStart, :default => @DateStart, :order => [:month, :day, :year] %>
<%= f.label :End %><br />
<%= f.date_select :DateEnd,:default => @DateEnd,:order => [:month, :day, :year]%>
<%= f.submit "Submit" %>
<% end %>
Lands查看页面(app / views / lands / show.html.erb)
<p>Start : <%= @land.DateEnd %></p>
<p>End : <%= @land.DateEnd %></p>
我希望它应该有效。
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