Use self.client instead of client

[adibsaad]

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Should fix https://github.com/elastic/elasticsearch-rails/issues/1004 (also mentioned here https://github.com/elastic/elasticsearch-ruby/issues/1344#issuecomment-1017176417)

When deleting an index that doesn't exist, the exception handler references client but I think it should be referencing self.client

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[Lolote13]

Hello, can someone review this ? I have the same issue

[sebfie]

up ?

[kalashnikovisme]

I've catch error #1004

Added gem 'elasticsearch-rails', github: 'adibsaad/elasticsearch-rails', branch: 'patch-1' instead of main version.

Unfortunately, the error is still the same.

NoMethodError: undefined method `transport' for #<Elasticsearch::Transport::Transport::HTTP::Faraday:0x0000564e78127498>
/bundle/ruby/2.7.0/bundler/gems/elasticsearch-rails-a0b81a691fd3/elasticsearch-model/lib/elasticsearch/model/indexing.rb:293:in `rescue in delete_index!'
/bundle/ruby/2.7.0/bundler/gems/elasticsearch-rails-a0b81a691fd3/elasticsearch-model/lib/elasticsearch/model/indexing.rb:289:in `delete_index!'
/bundle/ruby/2.7.0/bundler/gems/elasticsearch-rails-a0b81a691fd3/elasticsearch-model/lib/elasticsearch/model/indexing.rb:248:in `create_index!'