/ 
CPAN-Search-Lite-0.59
River stage zero No dependents
/ CPAN::Search::Lite::Populate

NAME

CPAN::Search::Lite::Populate - create and populate database tables

DESCRIPTION

This module is responsible for creating the tables (if setup is passed as an option) and then for inserting, updating, or deleting (as appropriate) the relevant information from the indices of CPAN::Search::Lite::Info and CPAN::Search::Lite::PPM and the state information from CPAN::Search::Lite::State. It does this through the insert, update, and delete methods associated with each table.

Note that the tables are created with the setup argument passed into the new method when creating the CPAN::Search::Lite::Index object; existing tables will be dropped.

TABLES

The tables used are described below.

mods

This table contains module information, and is created as

mod_id SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT
dist_id SMALLINT UNSIGNED NOT NULL
mod_name VARCHAR(50) NOT NULL
mod_abs TINYTEXT
doc bool
mod_vers VARCHAR(10)
dslip CHAR(5)
chapterid TINYINT(2) UNSIGNED
PRIMARY KEY (mod_id)
FULLTEXT (mod_abs)
KEY (dist_id)
KEY (mod_name(50))

  • mod_id

    This is the primary (unique) key of the table.

  • dist_id

    This key corresponds to the id of the associated distribution in the dists table.

  • mod_name

    This is the module's name.

  • mod_abs

    This is a description, if available, of the module.

  • doc

    This value, if true, signifies that documentation for the module exists, and is located, eg, in dist_name/Foo/Bar.pm for a module Foo::Bar in the dist_name distribution.

  • mod_vers

    This value, if present, gives the version of the module.

  • dslip

    This is a 5 character string expressing the dslip (development, support, language, interface, public license) information.

  • chapterid

    This number corresponds to the chapter id of the module, if present.

dists

This table contains distribution information, and is created as

dist_id SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT
stamp TIMESTAMP(8)
auth_id SMALLINT UNSIGNED NOT NULL
dist_name VARCHAR(60) NOT NULL
dist_file VARCHAR(90) NOT NULL
dist_vers VARCHAR(20)
dist_abs TINYTEXT
size MEDIUMINT UNSIGNED NOT NULL
birth DATE NOT NULL
readme bool
changes bool
meta bool
install bool
PRIMARY KEY (dist_id)
FULLTEXT (dist_abs)
KEY (auth_id)
KEY (dist_name(60))

  • dist_id

    This is the primary (unique) key of the table.

  • stamp

    This is a timestamp for the table indicating when the entry was either inserted or last updated.

  • auth_id

    This corresponds to the CPAN author id of the distribution in the auths table.

  • dist_name

    This corresponds to the distribution name (eg, for My-Distname-0.22.tar.gz, dist_name will be My-Distname).

  • dist_file

    This corresponds to the CPAN file name.

  • dist_vers

    This is the version of the CPAN file (eg, for My-Distname-0.22.tar.gz, dist_vers will be 0.22).

  • dist_abs

    This is a description of the distribtion. If not directly supplied, the description for, eg, Foo::Bar, if present, will be used for the Foo-Bar distribution.

  • size

    This corresponds to the size of the distribution, in bytes.

  • birth

    This corresponds to the last modified time of the distribution, in the form YYYY/MM/DD.

  • readme

    This value, if true, indicates that a README file for the distribution is available.

  • changes

    This value, if true, indicates that a Changes file for the distribution is available.

  • meta

    This value, if true, indicates that a META.yml file for the distribution is available.

  • install

    This value, if true, indicates that an INSTALL file for the distribution is available.

auths

This table contains CPAN author information, and is created as

auth_id SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT
cpanid VARCHAR(20) NOT NULL
fullname VARCHAR(40) NOT NULL
email TINYTEXT
PRIMARY KEY (auth_id)
FULLTEXT (fullname)
KEY (cpanid(20))

  • auth_id

    This is the primary (unique) key of the table.

  • cpanid

    This gives the CPAN author id.

  • fullname

    This is the full name of the author.

  • email

    This is the supplied email address of the author.

chaps

This table contains chapter information associated with distributions. PAUSE allows one, when registering modules, to associate a chapter id with each module (see the mods table). This information is used here to associate chapters (and subchapters) with distributions in the following manner. Suppose a distribution Quantum-Theory contains a module Beta::Decay with chapter id 55, and another module Laser with chapter id 87. The Quantum-Theory distribution will then have two entries in this table - chapterid of 55 and subchapter of Beta, and chapterid of 87 and subchapter of Laser.

The table is created as follows.

chapterid TINYINT UNSIGNED NOT NULL
dist_id SMALLINT UNSIGNED NOT NULL
subchapter TINYTEXT
KEY (dist_id)

  • chapterid

    This number corresponds to the chapter id.

  • dist_id

    This is the id corresponding to the distribution in the dists table.

  • subchapter

    This is the subchapter.

reqs

This table lists the prerequisites of the distribution, as found in the META.yml file (if supplied - note that only relatively recent versions of ExtUtils::MakeMaker or Module::Build generate this file when making a distribution). The table is created as

dist_id SMALLINT UNSIGNED NOT NULL
mod_id SMALLINT UNSIGNED NOT NULL
req_vers VARCHAR(10)
KEY (dist_id)

  • dist_id

    This corresponds to the id of the distribution in the dists table.

  • mod_id

    This corresponds to the id of the prerequisite module in the mods table.

  • req_vers

    This is the version of the prerequisite module, if specified.

ppms

This table contains information on Win32 ppm packages available in the repositories specified in $repositories of CPAN::Search::Lite::Util. The table is created as

dist_id SMALLINT UNSIGNED NOT NULL
rep_id TINYINT(2) UNSIGNED NOT NULL
ppm_vers VARCHAR(20)
KEY (dist_id)

  • dist_id

    This is the id of the distribution appearing in the dists table.

  • rep_id

    This is the id of the repository appearing in the $repositories data structure.

  • ppm_vers

    This is the version of the ppm package found.

CATEGORIES

When uploading a module to PAUSE, there exists an option to assign it to one of 24 broad categories. However, many modules have not been assigned such a category, for one reason or another. When populating the tables, the AI::Categorizer module is used to guess a possible category for those modules that haven't been assigned one, based on a training set based on the modules that have been assigned a category (see <AI::Categorizer> for general details). If this guess is above a configurable threshold (see CPAN::Search::Lite::Index, the guess is accepted and subsequently inserted into the database, as well as updating the categories associated with the module's distribution.

SEE ALSO

CPAN::Search::Lite::Index