Class: Dumbo::Extension

Inherits:
Struct
  • Object
show all
Defined in:
lib/dumbo/extension.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name

Returns:

  • (Object) —

    the current value of name



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# File 'lib/dumbo/extension.rb', line 2

def name
  @name
end

#version ⇒ Object

Returns the value of attribute version

Returns:

  • (Object) —

    the current value of version



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# File 'lib/dumbo/extension.rb', line 2

def version
  @version
end

Class Method Details

.file_name ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 22

def file_name
  "#{name}--#{version}.sql"
end

.name ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 4

def name
  @_name ||= File.read(makefile)[/EXTENSION\s*=\s*([^\s]*)/, 1]
end

.version ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 8

def version
  @_version ||= File.read(control_file)[/default_version\s*=\s*'([^']*)'/, 1]
end

.version!(string) ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 16

def version!(string)
  content = File.read(control_file)
  new_content = content.gsub(version, new_version)
  File.open(control_file, 'w') { |file| file.puts new_content }
end

.versions ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 12

def versions
  new.versions
end

Instance Method Details

#casts ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 103

def casts
  objects.select { |o| o.kind_of?(Cast) }
end

#create ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 60

def create
  execute "DROP EXTENSION IF EXISTS #{name}"

  create_sql = "CREATE EXTENSION #{name}"
  create_sql = "#{create_sql} VERSION '#{version}'" unless version.nil?

  execute create_sql
  self
end

#functions ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 99

def functions
  objects.select { |o| o.kind_of?(Function) }
end

#obj_id ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 70

def obj_id
  @obj_id ||= begin
    result = execute <<-SQL
      SELECT e.extname, e.oid
      FROM pg_catalog.pg_extension e
      WHERE e.extname ~ '^(#{name})$'
      ORDER BY 1;
    SQL
    result.first['oid']
  end
end

#objects ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 82

def objects
  @objects ||= begin
    result = execute <<-SQL
      SELECT classid::pg_catalog.regclass, objid
      FROM pg_catalog.pg_depend
      WHERE refclassid = 'pg_catalog.pg_extension'::pg_catalog.regclass AND refobjid = '#{obj_id}' AND deptype = 'e'
      ORDER BY 1;
    SQL

    result.map { |r| PgObject.new(r['objid']).get(r['classid']) }
  end
end

#operators ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 107

def operators
  objects.select { |o| o.kind_of?(Operator) }
end

#releases ⇒ Object

main releases without migrations



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# File 'lib/dumbo/extension.rb', line 46

def releases
  Dir.glob("#{name}--*.sql").reject { |f| f =~ /\d--\d/ }
end

#types ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 95

def types
  objects.select { |o| o.kind_of?(Type) }
end

#versions ⇒ Object 



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# File 'lib/dumbo/extension.rb', line 50

def versions
  releases.map do |file_name|
    if version_string = file_name[/([\d+\.]+)\.sql$/, 1]
      ExtensionVersion.new_from_string(version_string)
    else
      nil
    end
  end.compact.sort
end