我的应用中有一个People模型，给我带来了麻烦。每个person具有三个日期时间列:birthday，:anniversary和:other。我的表单设置如下：
<div class="container">
<h2 class="text-center">Add a New Person</h2>
<%= simple_form_for(@person) do |f| %>
<div class="form-inputs">
<div class="row">
<div class="col-xs-12">
<%= f.label :relationship %>
<%= f.select :relationship, options_for_select(['Child', 'Spouse', 'Relative', 'Friend', 'Colleague', 'Acquaintance', 'Other'], :selected => f.object.relationship), {}, { :class => 'span3 controls controls-row' } %>
</div> <!-- col -->
</div> <!-- row -->
<div class="row">
<div class="col-sm-4">
<%= f.input :first_name, required: true %>
</div> <!-- col -->
<div class="col-sm-4">
<%= f.input :middle_name %>
</div> <!-- col -->
<div class="col-sm-4">
<%= f.input :last_name, required: true %>
</div> <!-- col -->
</div> <!-- row -->
<div class="row">
<div class="col-sm-4">
<%= f.label :anniversary %>
<%= f.text_field :anniversary, class: "form-control datepicker" %>
</div> <!-- col -->
<div class="col-sm-4">
<%= f.label :birthday %>
<%= f.text_field :birthday, class: "form-control datepicker" %>
</div> <!-- col -->
<div class="col-sm-4">
<%= f.label :other %>
<%= f.text_field :other, class: "form-control datepicker" %>
</div> <!-- col -->
</div> <!-- row -->
<div class="row">
<div class="col-sm-12">
<%= f.input :other_date_name %>
</div> <!-- col -->
<div class="col-xs-12">
<%= f.input :notes %>
</div> <!-- col -->
</div> <!-- row -->
</div> <!-- form inputs -->
<div class="form-actions">
<%= f.button :submit, class: "btn btn-outline-primary" %>
</div>
<% end %>
</div> <!-- container -->
但是这种形式的确会在people#index页面的弹出窗口中呈现，如下所示：
<div id="newPersonPopup" class="white-popup mfp-hide">
<%= render 'form', person: @person %>
</div>
我确实有一些关于日期选择器的问题，但是我遵循了this问题，并使其与jquery-ui-rails gem一起使用。
在当前设置下，即使代码相同，它也会保存:birthday和:anniversary的日期，但不会保存:other的日期。
相关的控制器方法是：
class PeopleController < ApplicationController
before_action :set_person, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!
# GET /people
# GET /people.json
def index
@people = Person.where(user_id: current_user.id)
@person = Person.new
end
def create
@person = Person.new(person_params)
@person.user_id = current_user.id
respond_to do |format|
if @person.save
format.html { redirect_to people_path, notice: 'Person was successfully created.' }
format.json { render :show, status: :created, location: @person }
else
format.html { render :new }
format.json { render json: @person.errors, status: :unprocessable_entity }
end
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_person
@person = Person.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def person_params
params.require(:person).permit(:relationship, :first_name, :middle_name, :last_name, :birthday, :anniversary, :other, :other_date_name, :notes, :user_id)
end
end
我已经更改了表单中字段的顺序，并获得了不同的缺失属性（例如，在某些配置中，:birthday不会被保存，而:other会被保存，等等），但是什么也没有我确实使它保存了所有三个日期。我已验证它在nil中另存为rails c。
任何人都可以看到这里发生的事情吗？
其他信息
以下是用于创建新person的服务器日志：
Started POST "/people" for 127.0.0.1 at 2018-10-02 20:26:08 -0700
Processing by PeopleController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"o7zlymmDmugZpN94i/xMzbnOCCwh/md0IOzA2W00Lhm8dVTE7bT6ny2BY1aDdqA4ilwenFO9/+XaLdevcyUqeA==", "person"=>{"relationship"=>"Child", "first_name"=>"Test", "middle_name"=>"For", "last_name"=>"Dates", "group"=>"The Testers", "anniversary"=>"10/06/2018", "birthday"=>"10/26/2018", "other"=>"10/13/2018", "other_date_name"=>"Test Date", "notes"=>"Notes go here."}, "commit"=>"Create Person"}
User Load (3.9ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ? [["id", 1], ["LIMIT", 1]]
↳ /Users/lizbayardelle/.rvm/gems/ruby-2.5.0/gems/activerecord-5.2.1/lib/active_record/log_subscriber.rb:98
(0.1ms) begin transaction
↳ app/controllers/people_controller.rb:39
User Load (0.6ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT ? [["id", 1], ["LIMIT", 1]]
↳ app/controllers/people_controller.rb:39
Person Create (2.7ms) INSERT INTO "people" ("relationship", "first_name", "middle_name", "last_name", "anniversary", "other_date_name", "notes", "user_id", "created_at", "updated_at", "group") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) [["relationship", "Child"], ["first_name", "Test"], ["middle_name", "For"], ["last_name", "Dates"], ["anniversary", "2018-06-10"], ["other_date_name", "Test Date"], ["notes", "Notes go here."], ["user_id", 1], ["created_at", "2018-10-03 03:26:08.941492"], ["updated_at", "2018-10-03 03:26:08.941492"], ["group", "The Testers"]]
↳ app/controllers/people_controller.rb:39
(2.3ms) commit transaction
↳ app/controllers/people_controller.rb:39
Redirected to http://localhost:3000/people
Completed 302 Found in 193ms (ActiveRecord: 9.5ms)
Started GET "/people" for 127.0.0.1 at 2018-10-02 20:26:08 -0700
Processing by PeopleController#index as HTML
User Load (1.4ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ? [["id", 1], ["LIMIT", 1]]
↳ /Users/lizbayardelle/.rvm/gems/ruby-2.5.0/gems/activerecord-5.2.1/lib/active_record/log_subscriber.rb:98
Person Load (10.3ms) SELECT "people".* FROM "people" WHERE "people"."user_id" = ? AND "people"."birthday" IS NOT NULL [["user_id", 1]]
↳ app/controllers/people_controller.rb:9
Person Load (0.3ms) SELECT "people".* FROM "people" WHERE "people"."user_id" = ? [["user_id", 1]]
↳ app/controllers/people_controller.rb:11
Person Load (0.3ms) SELECT "people".* FROM "people" WHERE "people"."user_id" = ? AND "people"."group" IS NOT NULL [["user_id", 1]]
↳ app/controllers/people_controller.rb:12
Rendering people/index.html.erb within layouts/application
Person Load (0.4ms) SELECT "people".* FROM "people" WHERE "people"."user_id" = ? ORDER BY last_name ASC [["user_id", 1]]
↳ app/views/people/index.html.erb:37
Person Load (1.8ms) SELECT "people".* FROM "people" WHERE "people"."user_id" = ? AND "people"."group" IS NULL ORDER BY last_name ASC [["user_id", 1]]
↳ app/views/people/index.html.erb:70
Person Load (6.2ms) SELECT "people".* FROM "people" WHERE "people"."user_id" = ? AND "people"."birthday" IS NULL ORDER BY last_name ASC [["user_id", 1]]
↳ app/views/people/index.html.erb:112
Rendered people/_form.html.erb (165.9ms)
Rendered people/index.html.erb within layouts/application (267.8ms)
Completed 200 OK in 1219ms (Views: 1167.9ms | ActiveRecord: 20.6ms)
答案 0 :(得分：0)
问题出在您的日期格式上。看看日志中的这些行。
这是您的控制器收到的：
"anniversary"=>"10/06/2018", "birthday"=>"10/26/2018", "other"=>"10/13/2018"
这就是您的模型要保存的内容：
["anniversary", "2018-06-10"]
因此“ 10月6日”被转换为“ 6月10日”，因为该模型将您的日期视为day/month/year格式。这就是为什么birthday和other日期被忽略的原因。没有26个月或13个月，因此这些属性被忽略为无效。
要解决此问题，您需要将UI中的日期转换为正确的格式（模型可以理解）。最好的方法是在用户界面（即datepicker）中进行转换。如果要保留一种日期格式（month/day/year）以便显示给用户以供选择，并以模型可识别的格式（year-month-day）将日期发送给控制器，则可以使用{{3} } 方法。修改模板中与日期选择器相关的字段：
<div class="row">
<div class="col-sm-4">
<%= f.label :anniversary %>
<input type="text" class="form-control datepicker" data-datepicker-holder="#anniversaryHolder"/>
<%= f.hidden_field :anniversary, id: "anniversaryHolder" %>
</div> <!-- col -->
<div class="col-sm-4">
<%= f.label :birthday %>
<input type="text" class="form-control datepicker" data-datepicker-holder="#birthdayHolder"/>
<%= f.hidden_field :birthday, id: "birthdayHolder" %>
</div> <!-- col -->
<div class="col-sm-4">
<%= f.label :other %>
<input type="text" class="form-control datepicker" data-datepicker-holder="#otherHolder"/>
<%= f.hidden_field :other, id: "otherHolder" %>
</div> <!-- col -->
</div> <!-- row -->
并替换初始化datepicker的代码：
$('input.datepicker').data({behaviour: "datepicker"}).datepicker();
与此：
$('input.datepicker').each(function() {
$(this).data({behaviour: "datepicker"}).datepicker({altFormat: "yy-mm-dd", altField: $(this).data('datepicker-holder')});
});
这里是一个简短的演示，解释了其工作方式（为清楚起见，用文本字段替换了隐藏字段）：altFormat