Module: Relay::Concerns::Context

Included in:
Pages::Base, Router, Routes::Base
Defined in:
app/concerns/context.rb

Overview

Shared Relay provider, model, and persisted context selection.

This concern centralizes the session-backed logic for resolving the current provider, chat model, and Relay::Models::Context so pages and routes stay in sync.

Instance Method Summary collapse

Instance Method Details

#contexts ⇒ Array<Relay::Models::Context>

Returns Saved contexts for the current user and provider, newest first.

Returns:



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# File 'app/concerns/context.rb', line 46

def contexts
  @contexts ||= Relay::Models::Context.where(user_id: user.id, provider:)
    .reverse_order(:updated_at)
    .all
    .select { valid_model?(_1[:model]) }
    .select { _1.messages.any? }
end

#ctx ⇒ Relay::Models::Context

Returns The active persisted context for the current user and provider.

Returns:



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# File 'app/concerns/context.rb', line 36

def ctx
  @ctx ||= begin
    context = current_context || default_context
    sync_context!(context)
  end
end

#current_context ⇒ Relay::Models::Context?

Returns The currently selected context for the session, if it matches the current provider.

Returns:

  • (Relay::Models::Context, nil) —

    The currently selected context for the session, if it matches the current provider.



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# File 'app/concerns/context.rb', line 67

def current_context
  return unless session["context_id"]
  context = Relay::Models::Context.where(user_id: user.id, provider:, id: session["context_id"]).first
  return context if context && valid_model?(context[:model])
  session.delete("context_id")
  nil
end

#default_context ⇒ Relay::Models::Context

Returns The default context for the current provider/model selection.

Returns:



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# File 'app/concerns/context.rb', line 78

def default_context
  Relay::Models::Context.where(user_id: user.id, provider:, model:)
    .reverse_order(:updated_at)
    .first || Relay::Models::Context.create(user_id: user.id, provider:, model:)
end

#default_model ⇒ String

Returns the default chat model for the current provider.

Returns:

  • (String) —

    Returns the default chat model for the current provider.



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# File 'app/concerns/context.rb', line 110

def default_model
  case (provider = llms[self.provider]).name
  when :deepseek then "deepseek-v4-flash"
  when :openai then "gpt-5.4"
  when :xai then "grok-3"
  else provider.default_model
  end
end

#llm ⇒ LLM::Provider

Returns The selected provider object.

Returns:

  • (LLM::Provider) —

    The selected provider object.



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# File 'app/concerns/context.rb', line 29

def llm
  ctx.llm
end

#llms ⇒ Hash<String, LLM::Provider>

Returns A map of initialized LLM providers.

Returns:

  • (Hash<String, LLM::Provider>) —

    A map of initialized LLM providers.



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# File 'app/concerns/context.rb', line 96

def llms
  Relay.providers
end

#mcps ⇒ Array<Relay::Models::MCP>

Returns Saved MCP servers for the current user, newest first.

Returns:



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# File 'app/concerns/context.rb', line 57

def mcps
  @mcps ||= user ? Relay::Models::MCP.summary_dataset(user.mcps_dataset)
    .reverse_order(:created_at)
    .all : []
end

#model ⇒ String?

Returns The requested model.

Returns:

  • (String, nil) —

    The requested model.



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# File 'app/concerns/context.rb', line 22

def model
  session["model"] = normalize_model(session["model"])
end

#models ⇒ Array<Relay::Models::ModelRecord>

Returns Models for the current provider.

Returns:



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# File 'app/concerns/context.rb', line 103

def models
  Relay::Models::ModelRecord.where(provider:).order(:name).all
end

#normalize_model(id) ⇒ String

Parameters:

  • id (String, nil)

Returns:

  • (String) 


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# File 'app/concerns/context.rb', line 129

def normalize_model(id)
  return id if id && valid_model?(id)
  default_model
end

#provider ⇒ String

Returns The requested provider, defaulting to deepseek.

Returns:

  • (String) —

    The requested provider, defaulting to deepseek.



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# File 'app/concerns/context.rb', line 15

def provider
  session["provider"] || "deepseek"
end

#sync_context!(context) ⇒ Relay::Models::Context

Parameters:

Returns:



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# File 'app/concerns/context.rb', line 87

def sync_context!(context)
  session["context_id"] = context.id
  session["model"] = normalize_model(context[:model])
  context
end

#user ⇒ Relay::Models::User?

Returns:



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# File 'app/concerns/context.rb', line 136

def user
  @user ||= Relay::Models::User[session["user_id"]] if session["user_id"]
end

#valid_model?(id) ⇒ Boolean

Parameters:

  • id (String, nil)

Returns:

  • (Boolean) 


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# File 'app/concerns/context.rb', line 122

def valid_model?(id)
  models.any? { _1.model_id == id }
end