我即将撕我的头发,所以我一定是失去了一些东西基本...Rails的date_select和update_attributes方法
我有以下形式(简体):
<%= form_for(@public_call) do |f| %>
<div>Start: <%= f.date_select(:start_date,:start_year=>Time.now.year) -%></div>
<div>End: <%= f.date_select(:end_date,:start_year=>Time.now.year) -%></div>
<div>Deadline: <%= f.datetime_select(:submission_deadline,:start_year=>Time.now.year-1) -%></div>
<%- end -%>
形式帖子通过以下的方法(简化):
def update
begin
@public_call = PublicCall.find(params[:id])
@public_call.update_attributes!(params[:public_call])
rescue
...
end
end
1.5.2由轨道记录器所报告的下面的形式的结果(简化):
Parameters:
{"public_call"=>
{"start_date(1i)"=>"2012",
"start_date(2i)"=>"9",
"start_date(3i)"=>"30",
"end_date(1i)"=>"2012",
"end_date(2i)"=>"10",
"end_date(3i)"=>"3",
"submission_deadline(1i)"=>"2012",
"submission_deadline(2i)"=>"4",
"submission_deadline(3i)"=>"27",
"submission_deadline(4i)"=>"23",
"submission_deadline(5i)"=>"59"}
}
下面是问题:Rails似乎没有将三个字段的参数转换为数据库的日期和日期时间对象,就像它应该的那样。由Rails记录器报告的查询是:
UPDATE `public_calls` SET `start_date`=NULL, `end_date`=NULL, `submission_deadline`=NULL, `updated_at`='2012-03-20 20:47:15' WHERE...
任何想法是什么给出的?
BTW,Rails 3.2.0/Ruby 1.9.3。我的任何属性在public_calls模型中都没有被保护。
谢谢!
编辑
使用也试过:与update_attributes方法without_protection选择!但那也行不通。
编辑#2
我试着调试发生了什么事在的ActiveRecord的属性分配模块如下:
def assign_multiparameter_attributes(pairs)
Rails.logger.info('ASSIGN_MULTIPARAMETER_ATTRIBUTES: '+pairs.inspect)
execute_callstack_for_multiparameter_attributes(
extract_callstack_for_multiparameter_attributes(pairs)
)
end
def execute_callstack_for_multiparameter_attributes(callstack)
errors = []
Rails.logger.info('EXECUTE_CALLSTACK_FOR_MULTIPARAMETER_ATTRIBUTES: '+callstack.inspect)
callstack.each do |name, values_with_empty_parameters|
begin
send(name + "=", read_value_from_parameter(name, values_with_empty_parameters))
rescue => ex
errors << AttributeAssignmentError.new("error on assignment #{values_with_empty_parameters.values.inspect} to #{name}", ex, name)
end
end
unless errors.empty?
raise MultiparameterAssignmentErrors.new(errors), "#{errors.size} error(s) on assignment of multiparameter attributes"
end
end
def extract_callstack_for_multiparameter_attributes(pairs)
Rails.logger.info('EXTRACT_CALLSTACK_FOR_MULTIPARAMETER_ATTRIBUTES: '+pairs.inspect)
attributes = { }
pairs.each do |pair|
multiparameter_name, value = pair
attribute_name = multiparameter_name.split("(").first
attributes[attribute_name] = {} unless attributes.include?(attribute_name)
parameter_value = value.empty? ? nil : type_cast_attribute_value(multiparameter_name, value)
attributes[attribute_name][find_parameter_position(multiparameter_name)] ||= parameter_value
end
Rails.logger.info('EXTRACT_CALLSTACK_FOR_MULTIPARAMETER_ATTRIBUTES: '+attributes.inspect)
attributes
end
和这里的我得到什么:
ASSIGN_MULTIPARAMETER_ATTRIBUTES: [["start_date(1i)", "2012"], ["start_date(2i)", "9"], ["start_date(3i)", "30"], ["end_date(1i)", "2012"], ["end_date(2i)", "10"], ["end_date(3i)", "3"], ["submission_deadline(1i)", "2012"], ["submission_deadline(2i)", "4"], ["submission_deadline(3i)", "27"], ["submission_deadline(4i)", "23"], ["submission_deadline(5i)", "59"]]
EXTRACT_CALLSTACK_FOR_MULTIPARAMETER_ATTRIBUTES: [["start_date(1i)", "2012"], ["start_date(2i)", "9"], ["start_date(3i)", "30"], ["end_date(1i)", "2012"], ["end_date(2i)", "10"], ["end_date(3i)", "3"], ["submission_deadline(1i)", "2012"], ["submission_deadline(2i)", "4"], ["submission_deadline(3i)", "27"], ["submission_deadline(4i)", "23"], ["submission_deadline(5i)", "59"]]
EXTRACT_CALLSTACK_FOR_MULTIPARAMETER_ATTRIBUTES: {"start_date"=>{1=>2012, 2=>9, 3=>30}, "end_date"=>{1=>2012, 2=>10, 3=>3}, "submission_deadline"=>{1=>2012, 2=>4, 3=>27, 4=>23, 5=>59}}
任何想法,为什么execute_callstack_for_multiparameter_attributes方法没有被调用?
我也有这个问题。你能弄明白吗? – 2012-05-24 15:25:16