Change mixed string / symbol keys to all symbol keys

Before:

```
{"EmsEvent"=>
  {"description"=>"Management Events",
   "group_names"=>
    {:addition=>"Creation/Addition",
...
     :security=>"Security"},
   "group_levels"=>
    {"critical"=>"Critical", "detail"=>"Detail", "warning"=>"Warning"}},
 "MiqEvent"=>
  {"description"=>"Policy Events",
   "group_names"=>
    {"vm_process"=>"VM Lifecycle",
...
     "auth_validation"=>"Authentication Validation (Provider)"},
   "group_levels"=>{"success"=>"Success", "failure"=>"Failure"}}}
```

After:

```
{:EmsEvent=>
  {:description=>"Management Events",
   :group_names=>
    {:addition=>"Creation/Addition",
...
     :security=>"Security"},
   :group_levels=>
    {:critical=>"Critical", :detail=>"Detail", :warning=>"Warning"}},
 :MiqEvent=>
  {:description=>"Policy Events",
   :group_names=>
    {:vm_process=>"VM Lifecycle",
...
     :auth_validation=>"Authentication Validation (Provider)"},
   :group_levels=>{:success=>"Success", :failure=>"Failure"}}}
```

app/models/ems_event.rb

@@ -15,16 +15,16 @@ def self.description
  end
 
  def self.group_names_and_levels
- result = {'description' => description}
+ result = {:description => description}
  event_groups.each_with_object(result) do |(group_name, group_details), hash|
- hash["group_names"] ||= {}
- hash["group_names"][group_name] = group_details[:name]
+ hash[:group_names] ||= {}
+ hash[:group_names][group_name] = group_details[:name]
 
  group_details.each_key do |level|
  level = level.to_s
  next if level == 'name'
- hash["group_levels"] ||= {}
- hash["group_levels"][level] ||= level.capitalize
+ hash[:group_levels] ||= {}
+ hash[:group_levels][level.to_sym] ||= level.capitalize
  end
  end
  end

app/models/event_stream.rb

@@ -113,6 +113,6 @@ def self.timeline_classes
  end
 
  def self.timeline_options
- timeline_classes.map { |c| [c.name, c.group_names_and_levels] }.to_h
+ timeline_classes.map { |c| [c.name.to_sym, c.group_names_and_levels] }.to_h
  end
 end

app/models/miq_event.rb

@@ -25,9 +25,9 @@ def self.description
  end
 
  def self.group_names_and_levels
- hash = {'description' => description}
- hash["group_names"] = MiqEventDefinitionSet.all.pluck(:name, :description).to_h
- hash["group_levels"] =[MiqPolicy::CONDITION_ALLOW, MiqPolicy::CONDITION_DENY].map {|c| [c.downcase, c]}.to_h
+ hash = {:description => description}
+ hash[:group_names] = MiqEventDefinitionSet.all.pluck(:name, :description).to_h.symbolize_keys
+ hash[:group_levels] =[MiqPolicy::CONDITION_ALLOW, MiqPolicy::CONDITION_DENY].map {|c| [c.downcase.to_sym, c]}.to_h
  hash
  end
 

spec/models/event_stream_spec.rb

@@ -32,17 +32,17 @@
  it "has correct structure" do
  MiqEventDefinitionSet.seed
  options = described_class.timeline_options
- expect(options.keys.sort).to eq %w[EmsEvent MiqEvent]
+ expect(options.keys.sort).to eq %i[EmsEvent MiqEvent]
 
- expect(options["EmsEvent"].keys.sort).to eq %w[description group_levels group_names]
- expect(options["EmsEvent"]["description"]).to eq(EmsEvent.description)
- expect(options["EmsEvent"]["group_levels"].keys.sort).to eq %w[critical detail warning]
- expect(options["EmsEvent"]["group_names"].keys).to include *%i[addition configuration console deletion devices]
+ expect(options[:EmsEvent].keys.sort).to eq %i[description group_levels group_names]
+ expect(options[:EmsEvent][:description]).to eq(EmsEvent.description)
+ expect(options[:EmsEvent][:group_levels].keys.sort).to eq %i[critical detail warning]
+ expect(options[:EmsEvent][:group_names].keys).to include *%i[addition configuration console deletion devices]
 
- expect(options["MiqEvent"].keys.sort).to eq %w[description group_levels group_names]
- expect(options["MiqEvent"]["description"]).to eq(MiqEvent.description)
- expect(options["MiqEvent"]["group_levels"].keys.sort).to eq %w[failure success]
- expect(options["MiqEvent"]["group_names"].keys).to include *%w[auth_validation authentication compliance container_operations ems_operations evm_operations]
+ expect(options[:MiqEvent].keys.sort).to eq %i[description group_levels group_names]
+ expect(options[:MiqEvent][:description]).to eq(MiqEvent.description)
+ expect(options[:MiqEvent][:group_levels].keys.sort).to eq %i[failure success]
+ expect(options[:MiqEvent][:group_names].keys).to include *%i[auth_validation authentication compliance container_operations ems_operations evm_operations]
  end
  end
 end