CODEWITHSUNDEEP
ruby-on-railsrubyhash
sreang rathanak
sreang rathanak

Reputation: 532

Cannot merge Hash object with ActiveSupport::HashWithIndifferentAccess

I have a hash object (class name Hash):

h1 = {
 :hot_products=>{:enabled=>true, :always_enable=>false, :order=>0},
 :recent_products=>{:enabled=>true, :always_enable=>true, :order=>1},
 :event_promotion=>{:enabled=>true, :always_enable=>false, :order=>2}
}

And I has a params object( class name ActiveSupport::HashWithIndifferentAccess)

h2 = { 
 "hot_products"=>{"enabled"=>"1"},
 "recent_products"=>{"enabled"=>"0"},
 "event_promotion"=>{"enabled"=>"1"}
}

And I want to merge these object using deep_merge

h1.deep_merge(h2)

Then I got:

{
 :hot_products=>{:enabled=>true, :always_enable=>false, :order=>0},
 :recent_products=>{:enabled=>true, :always_enable=>true, :order=>1},
 :event_promotion=>{:enabled=>true, :always_enable=>false, :order=>2},
 "hot_products"=>{"enabled"=>"1"},
 "recent_products"=>{"enabled"=>"0"},
 "event_promotion"=>{"enabled"=>"1"}
}

Does anyone know how can I merge these two object?

Upvotes: 0

Views: 265

Answers (2)

Jithin
Jithin

Reputation: 11

Try this,

h1=ActiveSupport::HashWithIndifferentAccess.new(h1)
h1.deep_merge(h2)
=> {"hot_products"=>{"enabled"=>"1", "always_enable"=>false, "order"=>0}, "recent_products"=>{"enabled"=>"0", "always_enable"=>true, "order"=>1}, "event_promotion"=>{"enabled"=>"1", "always_enable"=>false, "order"=>2}}

Upvotes: 1

Deepak Mahakale
Deepak Mahakale

Reputation: 23661

Issue is h1 has symbol keys and h2 has string keys

Make h1 as HashWithIndifferentAccess

h1 = {
 :hot_products=>{:enabled=>true, :always_enable=>false, :order=>0},
 :recent_products=>{:enabled=>true, :always_enable=>true, :order=>1},
 :event_promotion=>{:enabled=>true, :always_enable=>false, :order=>2}
}.with_indifferent_access

and

h2 = { 
 "hot_products"=>{"enabled"=>"1"},
 "recent_products"=>{"enabled"=>"0"},
 "event_promotion"=>{"enabled"=>"1"}
}

Now, you can deep_merge the hash and it will return you proper result

h1.deep_merge(h2)

{
 "hot_products"=>{"enabled"=>"1", "always_enable"=>false, "order"=>0},
 "recent_products"=>{"enabled"=>"0", "always_enable"=>true, "order"=>1}, 
 "event_promotion"=>{"enabled"=>"1", "always_enable"=>false, "order"=>2}
}

Upvotes: 2

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