Class: Vcs4sql::Sqlite::Applied

Inherits:
Object
  • Object
show all
Defined in:
lib/vcs4sql/sqlite/applied.rb

Overview

The applied (existing) database change log.

Instance Method Summary collapse

Constructor Details

#initialize(conn, sql: "select * from changelog order by version") ⇒ Applied

Returns a new instance of Applied.

Parameters:

  • conn (Object) —

    the connection to the database.

  • sql (String (frozen)) (defaults to: "select * from changelog order by version") —

    the query to fetch the change log from db.



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# File 'lib/vcs4sql/sqlite/applied.rb', line 31

def initialize(conn, sql: "select * from changelog order by version")
  @conn = conn
  @sql = sql
end

Instance Method Details

#absent(version) ⇒ Object

Ensure that applied change set has a change with particular version



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# File 'lib/vcs4sql/sqlite/applied.rb', line 41

def absent(version)
  change(version).nil?
end

#change(version) ⇒ Object

TODO:

#/DEV Add verification of array usage over index. The changelog shouldn’t be a null.

Returns the details about applied change by version

Parameters:

  • version (Object) —

    the version of applied change



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# File 'lib/vcs4sql/sqlite/applied.rb', line 49

def change(version)
  changelog[version]
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vcs4sql/sqlite/applied.rb', line 36

def empty?
  changelog.empty?
end