Class: Migr8::Actions::NewAction

Inherits:

Action

• Object
• Action
• Migr8::Actions::NewAction

Defined in:

lib/migr8.rb

Constant Summary

NAME =

"new"

DESC =

"create new migration file and open it by $MIGR8_EDITOR"

OPTS =

[
  "-m text  : description message (mandatory)",
  "-u user  : author name (default: current user)",
  "-v version : specify version number instead of random string",
  "-p       : plain skeleton",
  "-e editor: editr command (such as 'emacsclient', 'open', ...)",
  "--table=table       : skeleton to create table",
  "--column=tbl.column : skeleton to add column",
  "--index=tbl.column  : skeleton to create index",
  "--unique=tbl.column : skeleton to add unique constraint",
]

ARGS =

nil

Instance Method Summary

• #run(options, args) ⇒ Object

Methods inherited from Action

#cmdopterr, find_by_name, #get_command, inherited, #parse, #parser, #repository, #short_usage, subclasses, #usage

Instance Method Details

#run(options, args) ⇒ Object

# File 'lib/migr8.rb', line 1554

def run(options, args)
  editor = options['e'] || ENV['MIGR8_EDITOR']
  if ! editor || editor.empty?
    _recommend_to_set_MIGR8_EDITOR('create')
    raise cmdopterr("#{NAME}: failed to create migration file.")
  end
  author = options['u']
  version = options['v']
  opts = {}
  opts[:plain] = true if options['p']
  desc = nil
  tblcol_rexp = /\A(\w+)(?:\.(\w+)|\((\w+)\))\z/
  if (val = options['table'])
    val =~ /\A(\w+)\z/  or
      raise cmdopterr("#{NAME} --table=#{val}: unexpected format.")
    desc = "create '#{$1}' table"
    opts[:table] = val
  end
  if (val = options['column'])
    val =~ tblcol_rexp  or
      raise cmdopterr("#{NAME} --column=#{val}: unexpected format.")
    desc = "add '#{$2||$3}' column on '#{$1}' table"
    opts[:column] = val
  end
  if (val = options['index'])
    val =~ tblcol_rexp  or
      raise cmdopterr("#{NAME} --index=#{val}: unexpected format.")
    desc = "create index on '#{$1}.#{$2||$3}'"
    opts[:index] = val
  end
  if (val = options['unique'])
    val =~ tblcol_rexp  or
      raise cmdopterr("#{NAME} --unique=#{val}: unexpected format.")
    desc = "add unique constraint to '#{$1}.#{$2||$3}'"
    opts[:unique] = val
  end
  desc = options['m'] if options['m']
  desc  or
    raise cmdopterr("#{NAME}: '-m text' option required.")
  #
  op = RepositoryOperation.new(repository())
  mig = _wrap { op.new(version, author, desc, opts) }
  puts "## New migration file:"
  puts mig.filepath
  puts "$ #{editor} #{mig.filepath}"
  system("#{editor} #{mig.filepath}")
end