insert_at creates gaps

[volontarian]

I am using version 0.3.0 and want this feature.

Given

ranking = Ranking.create(name: 'Dummy')
ranking.items.create(ranking_id: ranking.id, name: 'Thing 1')
ranking.items.create(ranking_id: ranking.id, name: 'Thing 2')
ranking.items.create(ranking_id: ranking.id, name: 'Thing 3')

When

item = ranking.items.new(name: 'Thing 2.0')
item.insert_at(2)

Then

ranking.items.order('position ASC').all.map{|i| [i.position, i.thing.name]}.should == [
  [1, "Thing 1"], [2, "Thing 2.0"], [3, "Thing 2"], [4, "Thing 3"]
]

But I got

ranking.items.order('position ASC').all.map{|i| [i.position, i.thing.name]}.should == [
  [1, "Thing 1"], [2, "Thing 2.0"], [4, "Thing 2"], [5, "Thing 3"]
]

[swanandp]

@gawlista Fixed, do update to 0.4.0