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3 changes: 2 additions & 1 deletion lib/ruby_llm/active_record/chat_methods.rb
Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,8 @@ def to_llm
model_record = model_association
@chat ||= (context || RubyLLM).chat(
model: model_record.model_id,
provider: model_record.provider.to_sym
provider: model_record.provider.to_sym,
assume_model_exists: assume_model_exists || false
)
@chat.reset_messages!

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6 changes: 4 additions & 2 deletions spec/ruby_llm/active_record/acts_as_model_spec.rb
Original file line number Diff line number Diff line change
Expand Up @@ -255,7 +255,8 @@ def messages
# Mock the chat creation to verify parameters
expect(RubyLLM).to receive(:chat).with( # rubocop:disable RSpec/MessageSpies,RSpec/StubbedMock
model: 'test-gpt',
provider: :openai
provider: :openai,
assume_model_exists: false
).and_return(
instance_double(RubyLLM::Chat, reset_messages!: nil, add_message: nil,
instance_variable_get: {}, on_new_message: nil, on_end_message: nil,
Expand All @@ -272,7 +273,8 @@ def messages

expect(RubyLLM).to receive(:chat).with( # rubocop:disable RSpec/MessageSpies,RSpec/StubbedMock
model: 'test-claude',
provider: :anthropic
provider: :anthropic,
assume_model_exists: false
).and_return(
instance_double(RubyLLM::Chat, reset_messages!: nil, add_message: nil,
instance_variable_get: {}, on_new_message: nil, on_end_message: nil,
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8 changes: 8 additions & 0 deletions spec/ruby_llm/active_record/acts_as_spec.rb
Original file line number Diff line number Diff line change
Expand Up @@ -500,6 +500,14 @@ class ToolCall < ActiveRecord::Base # rubocop:disable RSpec/LeakyConstantDeclara
expect(llm_tool_call.name).to eq('calculator')
expect(llm_tool_call.arguments).to eq({ 'expression' => '2 + 2' })
end

it 'correctly preserves custom model' do
custom_model = 'my-custom-model'
bot_chat = Assistants::BotChat.create!(model: custom_model, assume_model_exists: true, provider: 'openrouter')
bot_chat.save!
llm_chat = bot_chat.to_llm
expect(llm_chat.model.id).to eq(custom_model)
end
end
end

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