Class: PgDice::PeriodFetcher

Inherits:
Object
  • Object
show all
Defined in:
lib/pgdice/period_fetcher.rb

Overview

Used to find the period of a postgres table using the comment on the table created by pgslice

Instance Method Summary collapse

Constructor Details

#initialize(query_executor:) ⇒ PeriodFetcher

Returns a new instance of PeriodFetcher.



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# File 'lib/pgdice/period_fetcher.rb', line 6

def initialize(query_executor:)
  @query_executor = query_executor
end

Instance Method Details

#call(params) ⇒ Object 



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# File 'lib/pgdice/period_fetcher.rb', line 10

def call(params)
  sql = build_table_comment_sql(params.fetch(:table_name), params.fetch(:schema))
  values = @query_executor.call(sql)
  convert_comment_to_hash(values.first)[:period]
end