Services¶

Services provide the business logic layer for FactDb operations.

Available Services¶

SourceService - Ingest and manage source content
EntityService - Create and resolve entities
FactService - Extract and query facts

Service Pattern¶

All services follow a common pattern:

class SomeService
  attr_reader :config

  def initialize(config = FactDb.config)
    @config = config
  end

  # Business methods...
end

Accessing Services¶

Via FactDb¶

facts = FactDb.new

facts.source_service.create(text, type: :document)
facts.entity_service.create("Paula", type: :person)
facts.fact_service.create("Fact text", valid_at: Date.today)

Directly¶

service = FactDb::Services::SourceService.new(config)
source = service.create(text, type: :document)

Common Methods¶

All services provide these common methods:

Method	Description
`find(id)`	Find record by ID
`create(...)`	Create new record
`update(id, ...)`	Update existing record
`search(query)`	Search records