options

Returns a hash of all the options this script takes. (See the usage message for details)

run

Prints a help message if the users want it. If not, goes about its business.

Sets up the environment, checks current database state, creates or deletes a database as necessary and then creates or updates your models' schema.

setup_environment

Sets up a minimal Jifty environment.

print_help

Prints out help for the package using pod2usage.

If the user specified --help, prints a brief usage message

If the user specified --man, prints out a manpage

prepare_model_classes

Reads in our application class from the config file, sets up a schema generator and finds all our app's models.

probe_database_existence

Probes our database to see if it exists and is up to date.

create_all_tables

Create all tables for this application's models. Generally, this happens on installation.

upgrade_jifty_tables

Upgrade Jifty's internal tables.

upgrade_application_tables

Upgrade the application's tables.

upgrade_tables BASECLASS, FROM, TO, [UPGRADECLASS]

Given a BASECLASS to upgrade, and two version objects, FROM and TO, performs the needed transforms to the database. UPGRADECLASS, if not specified, defaults to BASECLASS::Upgrade

manage_database_existence

If the user wants the database created, creates the database. If the user wants the old database deleted, does that too.

NAME

Jifty::Script::Schema - Create SQL to update or create your Jifty app's tables

SYNOPSIS

  jifty schema --setup      Creates or updates your application's database tables

 Options:
   --print            Print SQL, rather than executing commands

   --setup            Upgrade or install the database, creating it if need be
   --create-database  Only creates the database
   --drop-database    Drops the database

   --help             brief help message
   --man              full documentation

OPTIONS

--print

Rather than actually running the database create/update/drop commands, Prints the commands to standard output

--create-database

Send a CREATE DATABASE command. Note that --setup, below, will automatically send a CREATE DATABASE if it needs one. This option is useful if you wish to create the database without creating any tables in it.

--drop-database

Send a DROP DATABASE command. Use this in conjunction with --setup to wipe and re-install the database.

--setup

Actually set up your app's tables. This creates the database if need be, and runs any commands needed to bring the tables up to date; these may include CREATE TABLE or ALTER TABLE commands. This option is assumed if the database does not exist, or the database version is not the same as the application's version.

--help

Print a brief help message and exits.

--man

Prints the manual page and exits.

DESCRIPTION

Looks for all model classes of your Jifty application and generates SQL statements to create or update database tables for all of the models. It either prints the SQL to standard output (--print) or actually issues the CREATE TABLE or ALTER TABLE statements on Jifty's database.

(Note that even if you are just displaying the SQL, you need to have correctly configured your Jifty database in ProjectRoot/etc/config.yml, because the SQL generated may depend on the database type.)

BUGS

Due to limitations of DBIx::DBSchema, this probably only works with PostgreSQL, MySQL and SQLite.

It is possible that some of this functionality should be rolled into Jifty::DBI::SchemaGenerator

cpanm Jifty

perl -MCPAN -e shell
install Jifty