问题描述
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我要直截了当地说，根据我的日志文件，当我提交表单以创建新记录时，所有参数均正确发送，但是在创建表单时某些属性无法设置记录在数据库中。以下是相关的日志条目：
Started POST \"/computers\" for 192.168.8.70 at 2011-05-19 16:24:31 -0400
Processing by ComputersController#create as HTML
Parameters: {\"utf8\"=>\"✓\",\"authenticity_token\"=>\"agR6MrYbMTbXeR9+Oit0rUzrhcKuhg6p/jpGqQD9MhI=\",\"show_location_buttons\"=>\"1\",\"computer\"=>{\"vendor_id\"=>\"1\",\"new_vendor_name\"=>\"\",\"model\"=>\"Hello\",\"hostname\"=>\"Hello\",\"user_id\"=>\"\",\"computer_type\"=>\"Desktop\",\"serial_number\"=>\"\",\"unh_id\"=>\"\",\"doc_id\"=>\"\",\"federal\"=>\"0\",\"department_id\"=>\"\",\"new_department_name\"=>\"\",\"security_id\"=>\"\",\"purchase_price\"=>\"\",\"purchase_date\"=>\"05/11/2011\",\"warranty_expiration\"=>\"05/28/2011\",\"activity_id\"=>\"\",\"new_activity_code\"=>\"\",\"condition_id\"=>\"\",\"new_condition_name\"=>\"\",\"location_id\"=>\"\",\"operating_system\"=>\"Fedora Core\",\"comments\"=>\"\"},\"commit\"=>\"Create Computer\"}
User Load (0.1ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 48 LIMIT 1
sql (0.1ms) BEGIN
sql (0.4ms) SHOW TABLES
Computer Load (0.2ms) SELECT `computers`.`id` FROM `computers` WHERE (`computers`.`hostname` = BINARY \'Hello\') LIMIT 1
vendor Load (0.1ms) SELECT `vendors`.* FROM `vendors` WHERE `vendors`.`id` = 1 LIMIT 1
sql (0.7ms) describe `computers`
AREL (0.3ms) INSERT INTO `computers` (`vendor_id`,`model`,`hostname`,`computer_type`,`serial_number`,`unh_id`,`doc_id`,`federal`,`department_id`,`security_id`,`purchase_price`,`purchase_date`,`warranty_expiration`,`activity_id`,`condition_id`,`location_id`,`operating_system`,`license_sticker_id`,`comments`,`created_at`,`updated_at`,`user_id`,`delta`) VALUES (1,\'Hello\',\'Desktop\',\'\',NULL,\'2011-11-05\',\'Fedora Core\',\'2011-05-19 20:24:31\',1)
class Computer < ActiveRecord::Base
before_validation :format_fields
validates :model,:presence => true
validates :hostname,:presence => true,:uniqueness => true,:format => { :with => /^[a-zA-Z0-9]{3,25}$/ }
validates :computer_type,:presence => true
validates :operating_system,:presence => true
validate :required_fields_specified
belongs_to :vendor
belongs_to :department
belongs_to :security
belongs_to :activity
belongs_to :condition
belongs_to :location
belongs_to :license_sticker
belongs_to :user
has_many :hardware_addresses,:as => :addressable
accepts_nested_attributes_for :hardware_addresses,:allow_destroy => true,:reject_if => lambda { |attr| attr[:mac_address].blank? }
has_many :license_stickers,:dependent => :destroy
accepts_nested_attributes_for :license_stickers,:reject_if => lambda { |attr| attr[:key].blank? or attr[:operating_system].blank? }
has_many :pictures,:as => :imageable,:dependent => :destroy
accepts_nested_attributes_for :pictures,:allow_destroy => true
attr_accessor :new_vendor_name
attr_accessor :new_activity_code
attr_accessor :new_department_name
attr_accessor :new_condition_name
before_save :create_vendor_from_name
before_save :create_activity_from_code
before_save :create_department_from_name
before_save :create_condition_from_name
OPErating_SYstemS = [\"Microsoft Windows XP x86\",\"Microsoft Windows 7 x86\",\"Microsoft Windows Server 2003\",\"Microsoft Windows XP x64\",\"Microsoft Windows 7 x64\",\"Microsoft Windows Server 2008 x86\",\"Microsoft Windows Vista x86\",\"Microsoft Windows Vista x64\",\"Microsoft Windows Server 2008 x64\",\"Ubuntu 8.x\",\"Ubuntu 9.x\",\"Ubuntu 10.x\",\"Fedora Core\",\"CentOS 5.x x86\",\"CentOS 4 x86\",\"IRIX\",\"MacOS 10.5\",\"MacOS 10.6\",\"MacOS 10.7\",\"CentOS 4 x64\",\"CentOS 5 x64\",\"ESX 3\",\"ESX 4\",\"SUSE\"]
COmpuTER_TYPES = [\"Desktop\",\"Laptop\",\"Server\"]
def required_fields_specified
errors.add_to_base \"Specify an existing vendor,or create one.\" if vendor.blank? and new_vendor_name.blank?
end
def create_vendor_from_name
create_vendor(:name => new_vendor_name) unless new_vendor_name.blank?
end
def create_activity_from_code
create_activity(:code => new_activity_code) unless new_activity_code.blank?
end
def create_department_from_name
create_department(:name => new_department_name) unless new_department_name.blank?
end
def create_condition_from_name
create_condition(:name => new_condition_name) unless new_condition_name.blank?
end
def format_fields
serial_number.upcase!
hostname.capitalize!
self.model = self.model.titleize
unh_id.upcase!
doc_id.upcase!
end
define_index do
indexes vendor(:name),:as => :vendor_name,:sortable => true
indexes model,:sortable => true
indexes hostname,:sortable => true
indexes computer_type,:sortable => true
indexes serial_number,:as => :serial,:sortable => true
indexes operating_system,:as => :os,:sortable => true
indexes activity(:code),:as => :activity_code
indexes condition(:name),:as => :condition_name
indexes department(:name),:as => :department_name
indexes license_sticker(:key),:as => :license_key
indexes license_sticker(:operating_system),:as => :licensed_os
has warranty_expiration,:as => :warranty
set_property :delta => true
end
end
class ComputersController < ApplicationController
filter_access_to :all
# GET /computers
# GET /computers.xml
def index
@computers = Computer.search params[:search],:order => sort_column(\"computer_type\"),:sort_mode => sort_direction,:per_page => 20,:page => params[:page],:star => true
respond_to do |format|
format.html # index.html.erb
format.js
format.xml { render :xml => @computers }
end
end
# GET /computers/1
# GET /computers/1.xml
def show
@computer = Computer.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => @computer }
end
end
# GET /computers/new
# GET /computers/new.xml
def new
@computer = Computer.new
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @computer }
end
end
# GET /computers/1/edit
def edit
@computer = Computer.find(params[:id])
end
# POST /computers
# POST /computers.xml
def create
@computer = Computer.new(params[:computer])
respond_to do |format|
if @computer.save
format.html { redirect_to(@computer,:notice => \'Computer was successfully created.\') }
format.xml { render :xml => @computer,:status => :created,:location => @computer }
else
format.html { render :action => \"new\" }
format.xml { render :xml => @computer.errors,:status => :unprocessable_entity }
end
end
end
# PUT /computers/1
# PUT /computers/1.xml
def update
@computer = Computer.find(params[:id])
respond_to do |format|
if @computer.update_attributes(params[:computer])
format.html { redirect_to(@computer,:notice => \'Computer was successfully updated.\') }
format.xml { head :ok }
else
format.html { render :action => \"edit\" }
format.xml { render :xml => @computer.errors,:status => :unprocessable_entity }
end
end
end
# DELETE /computers/1
# DELETE /computers/1.xml
def destroy
@computer = Computer.find(params[:id])
@computer.destroy
respond_to do |format|
format.html { redirect_to(computers_url) }
format.xml { head :ok }
end
end
private
# def sort_column
# params[:sort] || \"computer_type\"
# end
# def sort_direction
# if params[:direction].nil?
# :asc
# else
# params[:direction].to_sym
# end
# end
end
解决方法
在Rails控制台中执行以下代码
Computer.create! \"vendor_id\"=>\"1\",\"new_vendor_name\"=>\"\",\"model\"=>\"Hello\",\"hostname\"=>\"Hello\",\"user_id\"=>\"\",\"computer_type\"=>\"Desktop\",\"serial_number\"=>\"\",\"unh_id\"=>\"\",\"doc_id\"=>\"\",\"federal\"=>\"0\",\"department_id\"=>\"\",\"new_department_name\"=>\"\",\"security_id\"=>\"\",\"purchase_price\"=>\"\",\"purchase_date\"=>\"05/11/2011\",\"warranty_expiration\"=>\"05/28/2011\",\"activity_id\"=>\"\",\"new_activity_code\"=>\"\",\"condition_id\"=>\"\",\"new_condition_name\"=>\"\",\"location_id\"=>\"\",\"operating_system\"=>\"Fedora Core\",\"comments\"=>\"\"
Open rails console --sandbox
$ computer = Computer.new
$ computer.model = \'abc\'
$ computer.new_vendor_name = \'xyz\'
$ Keep adding required column values.
$ now try computer.save
# if it prompts true,then your data has been saved successfully if you get false then you have error in your code.
$ computer.errors.full_messages
#above command will list out,where your failed the validations(added in Model).