获取日期查询，在轨方法之间AREL和GT LT

我想日期更大超过一个特定的日期，或小于甚至日期两者之间有AREL指定的日期。这是我的控制器：获取日期查询，在轨方法之间AREL和GT LT

@from_time = search[:value][:from_time] 
@to_time = search[:value][:to_time] 
letters_query = letters[@key].between(@[email protected]_time) 
@letters = Letter.joins(:official).where(letters_query)

，这是JSON我进入我的控制器

Parameters: {"query"=>{"search"=>{"0"=>{"key"=>"letter_date", "value"=>{"from_time"=>"01/09/1395", "to_time"=>"30/09/1395"}, "type"=>"date"}}}}

我确定要获取参数，要注意我的日期是太阳能类型！它返回错误：

If you are passing user input to a predicate, you must either give an appropriate type caster object to the `Arel::Table`, or manually cast the value before passing it to Arel. 
    DEPRECATION WARNING: Passing a column to `quote` has been deprecated. It is only used for type casting, which should be handled elsewhere. See https://github.com/rails/arel/commit/6160bfbda1d1781c3b08a33ec4955f170e95be11 for more information. (called from p at /home/afsane/Desktop/Afsane Development/Production/isecretariat/app/controllers/searches_controller.rb:511) 
    DEPRECATION WARNING: table_exists? is deprecated and will be removed from Rails 5.1 (use #data_source_exists? instead) (called from p at /home/afsane/Desktop/Afsane Development/Production/isecretariat/app/controllers/searches_controller.rb:511) 
    Arel performing automatic type casting is deprecated, and will be removed in Arel 8.0. If you are seeing this, it is because you are manually passing a value to an Arel predicate, and the `Arel::Table` object was constructed manually. The easiest way to remove this warning is to use an `Arel::Table` object returned from calling `arel_table` on an ActiveRecord::Base subclass. 

    If you're certain the value is already of the right type, change `attribute.eq(value)` to `attribute.eq(Arel::Nodes::Quoted.new(value))` (you will be able to remove that in Arel 8.0, it is only required to silence this deprecation warning). 

    You can also silence this warning globally by setting `$arel_silence_type_casting_deprecation` to `true`. (Do NOT do this if you are a library author) 

    If you are passing user input to a predicate, you must either give an appropriate type caster object to the `Arel::Table`, or manually cast the value before passing it to Arel.

为greated和我用这个小：

letters_query = officials[@key].lt(@to_time) 
letters_query = officials[@key].gt(@from_time)

我测试了很多，所有的问题与此线：

@letters = Letter.joins(:official).where(letters_query)

有什么想法？

来源

2016-11-25 Afsane Fadaei

什么是'字母[@key]'？ –

键是列名例如字母[：created_at] @JagdeepSingh –

我发现问题的查询应该看起来像这样：letters [：letter_date] .gt（Date.new（2016,10,20）），但问题我的日期是太阳能不是基督教的日历！我该怎么办？ –

随着AREL，这是如何产生合适的查询日期：

letters = Letter.arel_table 
@letter = Letter.where(letters[:date].between(Date.new(2016,08,24)..Date.new(2016,09,24))

来源

2017-01-25 16:08:56

我想你可以在这里使用parsi-date作为宝石中的年份，你的问题看起来与我相似。你将需要相应地解析你的查询参数。如果存储在数据库中的日期采用基督教日历格式，您将执行to_gregorian。

@from_time = Parsi::Date.parse(search[:value][:from_time]).to_gregorian 
@to_time = Parsi::Date.parse(search[:value][:to_time]).to_gregorian

来源

2016-11-25 06:58:08

获取日期查询，在轨方法之间AREL和GT LT

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