缺少方法“%”在 Rails 中使用 has_many 和 find()
当我尝试访问 has_many 关系的 find 方法时，出现非常奇怪的错误。
我在语法上做错了什么？
# Instructor model
class Instructor < ActiveRecord::Base
has_many :events
end
# Event model
class Event < ActiveRecord::Base
belongs_to :instructor
end
# Controller snip-it
i = Instructor.first
conditions = [ :start_time => params[:start]..params[:end], :submitted => true ]
@events = i.events.find(:all, :conditions => conditions)
# Error message
# NoMethodError (undefined method `%' for {:start_time=>"1283140800".."1286769600", :submitted=>true}:Hash):
I'm getting a very odd error when I attempt to access the find method of a has_many relationship.
What am I doing wrong syntactically?
# Instructor model
class Instructor < ActiveRecord::Base
has_many :events
end
# Event model
class Event < ActiveRecord::Base
belongs_to :instructor
end
# Controller snip-it
i = Instructor.first
conditions = [ :start_time => params[:start]..params[:end], :submitted => true ]
@events = i.events.find(:all, :conditions => conditions)
# Error message
# NoMethodError (undefined method `%' for {:start_time=>"1283140800".."1286769600", :submitted=>true}:Hash):
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这一行：
应该读为：
您正在创建一个包含哈希值的数组，而不是单个哈希值。
This line:
Should read:
You were creating an array with a hash in it instead of a single hash.