Class: PgObjects::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/pg_objects/parser.rb

Overview

Reads directives from SQL-comments

--!depends_on name_a
--!depends_on name_a, name_b, name_c
#!depends_on name_a

The directive must start the line (no leading whitespace). Dependencies may be listed on one line separated by commas and/or whitespace, or across several directive lines.

name_of_dependency: short or full name of object as well as object_name

Constant Summary collapse

DEPENDS_ON_DIRECTIVE = 
/\A(?:--|#)!depends_on\s+(.+)/

Instance Method Summary collapse

Instance Method Details

#fetch_directives ⇒ Object 



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# File 'lib/pg_objects/parser.rb', line 30

def fetch_directives
  {
    depends_on: fetch_dependencies
  }
end

#fetch_object_name ⇒ Object 



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# File 'lib/pg_objects/parser.rb', line 36

def fetch_object_name
  parsed_object.name
rescue PgQuery::ParseError, PgObjects::UnknownObjectTypeError
  nil
end

#fetch_qualified_object_name ⇒ Object 



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# File 'lib/pg_objects/parser.rb', line 42

def fetch_qualified_object_name
  parsed_object.qualified_name
rescue PgQuery::ParseError, PgObjects::UnknownObjectTypeError
  nil
end

#load(source) ⇒ Object 



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# File 'lib/pg_objects/parser.rb', line 23

def load(source)
  @source = source
  @parsed = nil
  @parsed_object = nil
  self
end