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NAME

DBIx::Custom - Execute insert, update, delete, and select statement easily

SYNOPSIS

    use DBIx::Custom;
    
    # Connect
    my $dbi = DBIx::Custom->connect(
        dsn => "dbi:mysql:database=dbname",
        user => 'ken',
        password => '!LFKD%$&',
        dbi_option => {mysql_enable_utf8 => 1}
    );

    # Insert 
    $dbi->insert({title => 'Perl', author => 'Ken'}, table  => 'book');
    
    # Update 
    $dbi->update({title => 'Perl', author => 'Ken'}, table  => 'book',
      where  => {id => 5});
    
    # Delete
    $dbi->delete(table  => 'book', where => {author => 'Ken'});

    # Select
    my $result = $dbi->select(table  => 'book',
      column => ['title', 'author'], where  => {author => 'Ken'});

    # Select, more complex
    my $result = $dbi->select(
        table  => 'book',
        column => [
            {book => [qw/title author/]},
            {company => ['name']}
        ],
        where  => {'book.author' => 'Ken'},
        join => ['left outer join company on book.company_id = company.id'],
        append => 'order by id limit 5'
    );
    
    # Fetch
    while (my $row = $result->fetch) {
        
    }
    
    # Fetch as hash
    while (my $row = $result->fetch_hash) {
        
    }
    
    # Execute SQL with parameter.
    $dbi->execute(
        "select id from book where author = :author and title like :title",
        {author => 'ken', title => '%Perl%'}
    );
    

DESCRIPTION

DBIx::Custom is DBI wrapper module to execute SQL easily. This module have the following features.

  • Execute insert, update, delete, or select statement easily

  • Create where clause flexibly

  • Named place holder support

  • Model support

  • Connection manager support

  • Choice your favorite relational database management system, MySQL, SQLite, PostgreSQL, Oracle, Microsoft SQL Server, Microsoft Access, DB2 or anything,

  • Filtering by data type or column name

  • Create order by clause flexibly

DOCUMENTATION

DBIx::Custom::Guide - How to use DBIx::Custom

DBIx::Custom Wiki - Theare are various examples.

Module documentations - DBIx::Custom::Result, DBIx::Custom::Query, DBIx::Custom::Where, DBIx::Custom::Model, DBIx::Custom::Order

ATTRIBUTES

connector

    my $connector = $dbi->connector;
    $dbi = $dbi->connector($connector);

Connection manager object. if connector is set, you can get dbh through connection manager. Conection manager object must have dbh mehtod.

This is DBIx::Connector example. Please pass default_dbi_option to DBIx::Connector new method.

    my $connector = DBIx::Connector->new(
        "dbi:mysql:database=$database",
        $user,
        $password,
        DBIx::Custom->new->default_dbi_option
    );
    
    my $dbi = DBIx::Custom->connect(connector => $connector);

If connector is set to 1 when connect method is called, DBIx::Connector is automatically set to connector

    my $dbi = DBIx::Custom->connect(
      dsn => $dsn, user => $user, password => $password, connector => 1);
    
    my $connector = $dbi->connector; # DBIx::Connector

Note that DBIx::Connector must be installed.

dsn

    my $dsn = $dbi->dsn;
    $dbi = $dbi->dsn("DBI:mysql:database=dbname");

Data source name, used when connect method is executed.

dbi_option

    my $dbi_option = $dbi->dbi_option;
    $dbi = $dbi->dbi_option($dbi_option);

DBI option, used when connect method is executed. Each value in option override the value of default_dbi_option.

default_dbi_option

    my $default_dbi_option = $dbi->default_dbi_option;
    $dbi = $dbi->default_dbi_option($default_dbi_option);

DBI default option, used when connect method is executed, default to the following values.

    {
        RaiseError => 1,
        PrintError => 0,
        AutoCommit => 1,
    }

filters

    my $filters = $dbi->filters;
    $dbi = $dbi->filters(\%filters);

Filters, registered by register_filter method.

last_sql

    my $last_sql = $dbi->last_sql;
    $dbi = $dbi->last_sql($last_sql);

Get last successed SQL executed by execute method.

models

    my $models = $dbi->models;
    $dbi = $dbi->models(\%models);

Models, included by include_model method.

password

    my $password = $dbi->password;
    $dbi = $dbi->password('lkj&le`@s');

Password, used when connect method is executed.

query_builder

    my $builder = $dbi->query_builder;

Creat query builder. This is DBIx::Custom::QueryBuilder.

quote

     my quote = $dbi->quote;
     $dbi = $dbi->quote('"');

Reserved word quote. Default to double quote '"' except for mysql. In mysql, default to back quote '`'

You can set quote pair.

    $dbi->quote('[]');

result_class

    my $result_class = $dbi->result_class;
    $dbi = $dbi->result_class('DBIx::Custom::Result');

Result class, default to DBIx::Custom::Result.

safety_character

    my $safety_character = $dbi->safety_character;
    $dbi = $dbi->safety_character($character);

Regex of safety character for table and column name, default to '\w'. Note that you don't have to specify like '[\w]'.

separator

    my $separator = $dbi->separator;
    $dbi = $dbi->separator('-');

Separator which join table name and column name. This have effect to column and mycolumn method, and select method's column option.

Default to ..

exclude_table

    my $exclude_table = $dbi->exclude_table;
    $dbi = $dbi->exclude_table(qr/pg_/);

Excluded table regex. each_column, each_table, type_rule, and setup_model methods ignore matching tables.

tag_parse

    my $tag_parse = $dbi->tag_parse(0);
    $dbi = $dbi->tag_parse;

Enable DEPRECATED tag parsing functionality, default to 1. If you want to disable tag parsing functionality, set to 0.

user

    my $user = $dbi->user;
    $dbi = $dbi->user('Ken');

User name, used when connect method is executed.

user_column_info

    my $user_column_info = $dbi->user_column_info;
    $dbi = $dbi->user_column_info($user_column_info);

You can set the date like the following one.

    [
        {table => 'book', column => 'title', info => {...}},
        {table => 'author', column => 'name', info => {...}}
    ]

Usually, you set return value of get_column_info.

    my $user_column_info
      = $dbi->get_column_info(exclude_table => qr/^system/);
    $dbi->user_column_info($user_column_info);

If user_column_info is set, each_column use user_column_info to find column info. this is very fast.

user_table_info

    my $user_table_info = $dbi->user_table_info;
    $dbi = $dbi->user_table_info($user_table_info);

You can set the following data.

    [
        {table => 'book', info => {...}},
        {table => 'author', info => {...}}
    ]

Usually, you can set return value of get_table_info.

    my $user_table_info = $dbi->get_table_info(exclude => qr/^system/);
    $dbi->user_table_info($user_table_info);

If user_table_info is set, each_table use user_table_info to find table info.

METHODS

DBIx::Custom inherits all methods from Object::Simple and use all methods of DBI and implements the following new ones.

available_datatype

    print $dbi->available_datatype;

Get available data types. You can use these data types in type rule's from1 and from2 section.

available_typename

    print $dbi->available_typename;

Get available type names. You can use these type names in type_rule's into1 and into2 section.

assign_param

    my $assign_param = $dbi->assign_param({title => 'a', age => 2});

Create assign parameter.

    title = :title, author = :author

This is equal to update_param exept that set is not added.

column

    my $column = $dbi->column(book => ['author', 'title']);

Create column clause. The follwoing column clause is created.

    book.author as "book.author",
    book.title as "book.title"

You can change separator by separator attribute.

    # Separator is double underbar
    $dbi->separator('__');
    
    book.author as "book__author",
    book.title as "book__title"

    # Separator is hyphen
    $dbi->separator('-');
    
    book.author as "book-author",
    book.title as "book-title"
    

connect

    my $dbi = DBIx::Custom->connect(
        dsn => "dbi:mysql:database=dbname",
        user => 'ken',
        password => '!LFKD%$&',
        dbi_option => {mysql_enable_utf8 => 1}
    );

Connect to the database and create a new DBIx::Custom object.

DBIx::Custom is a wrapper of DBI. AutoCommit and RaiseError options are true, and PrintError option is false by default.

count

    my $count = $model->count(table => 'book');

Get rows count.

Options is same as select method's ones.

create_model

    my $model = $dbi->create_model(
        table => 'book',
        primary_key => 'id',
        join => [
            'inner join company on book.comparny_id = company.id'
        ],
    );

Create DBIx::Custom::Model object and initialize model. the module is also used from model method.

   $dbi->model('book')->select(...);

dbh

    my $dbh = $dbi->dbh;

Get DBI database handle. if connector is set, you can get database handle through connector object.

delete

    $dbi->delete(table => 'book', where => {title => 'Perl'});

Execute delete statement.

The following opitons are available.

append

Same as select method's append option.

filter

Same as execute method's filter option.

id
    id => 4
    id => [4, 5]

ID corresponding to primary_key. You can delete rows by id and primary_key.

    $dbi->delete(
        parimary_key => ['id1', 'id2'],
        id => [4, 5],
        table => 'book',
    );

The above is same as the followin one.

    $dbi->delete(where => {id1 => 4, id2 => 5}, table => 'book');
prefix
    prefix => 'some'

prefix before table name section.

    delete some from book
query

Same as execute method's query option.

after_build_sql

Same as execute method's after_build_sql option.

table
    table => 'book'

Table name.

where

Same as select method's where option.

primary_key

See id option.

bind_type

Same as execute method's bind_type option.

type_rule_off

Same as execute method's type_rule_off option.

type_rule1_off
    type_rule1_off => 1

Same as execute method's type_rule1_off option.

type_rule2_off
    type_rule2_off => 1

Same as execute method's type_rule2_off option.

delete_all

    $dbi->delete_all(table => $table);

Execute delete statement for all rows. Options is same as delete.

each_column

    $dbi->each_column(
        sub {
            my ($dbi, $table, $column, $column_info) = @_;
            
            my $type = $column_info->{TYPE_NAME};
            
            if ($type eq 'DATE') {
                # ...
            }
        }
    );

Iterate all column informations of all table from database. Argument is callback when one column is found. Callback receive four arguments, dbi object, table name, column name and column information.

each_table

    $dbi->each_table(
        sub {
            my ($dbi, $table, $table_info) = @_;
            
            my $table_name = $table_info->{TABLE_NAME};
        }
    );

Iterate all table informationsfrom database. Argument is callback when one table is found. Callback receive three arguments, dbi object, table name, table information.

execute

    my $result = $dbi->execute(
      "select * from book where title = :title and author like :author",
      {title => 'Perl', author => '%Ken%'}
    );

    my $result = $dbi->execute(
      "select * from book where title = :book.title and author like :book.author",
      {'book.title' => 'Perl', 'book.author' => '%Ken%'}
    );

Execute SQL. SQL can contain column parameter such as :author and :title. You can append table name to column name such as :book.title and :book.author. Second argunet is data, embedded into column parameter. Return value is DBIx::Custom::Result object when select statement is executed, or the count of affected rows when insert, update, delete statement is executed.

Named placeholder such as :title is replaced by placeholder ?.

    # Original
    select * from book where title = :title and author like :author
    
    # Replaced
    select * from where title = ? and author like ?;

You can specify operator with named placeholder by name{operator} syntax.

    # Original
    select * from book where :title{=} and :author{like}
    
    # Replaced
    select * from where title = ? and author like ?;

Note that colons in time format such as 12:13:15 is exeption, it is not parsed as named placeholder. If you want to use colon generally, you must escape it by \\

    select * from where title = "aa\\:bb";

The following opitons are available.

bind_type

Specify database bind data type.

    bind_type => [image => DBI::SQL_BLOB]
    bind_type => [[qw/image audio/] => DBI::SQL_BLOB]

This is used to bind parameter by bind_param of statment handle.

    $sth->bind_param($pos, $value, DBI::SQL_BLOB);
filter
    filter => {
        title  => sub { uc $_[0] }
        author => sub { uc $_[0] }
    }

    # Filter name
    filter => {
        title  => 'upper_case',
        author => 'upper_case'
    }
        
    # At once
    filter => [
        [qw/title author/]  => sub { uc $_[0] }
    ]

Filter. You can set subroutine or filter name registered by by register_filter. This filter is executed before data is saved into database. and before type rule filter is executed.

id
    id => 4
    id => [4, 5]

ID corresponding to primary_key. You can delete rows by id and primary_key.

    $dbi->execute(
        "select * from book where id1 = :id1 and id2 = :id2",
        {},
        parimary_key => ['id1', 'id2'],
        id => [4, 5],
    );

The above is same as the followin one.

    $dbi->execute(
        "select * from book where id1 = :id1 and id2 = :id2",
        {id1 => 4, id2 => 5}
    );
query
    query => 1

execute method return DBIx::Custom::Query object, not executing SQL. You can check SQL or get statment handle.

    my $sql = $query->sql;
    my $sth = $query->sth;
    my $columns = $query->columns;
    

If you want to execute SQL fast, you can do the following way.

    my $query;
    foreach my $row (@$rows) {
      $query ||= $dbi->insert($row, table => 'table1', query => 1);
      $dbi->execute($query, $row, filter => {ab => sub { $_[0] * 2 }});
    }

Statement handle is reused and SQL parsing is finished, so you can get more performance than normal way.

If you want to execute SQL as possible as fast and don't need filtering. You can do the following way.

    my $query;
    my $sth;
    foreach my $row (@$rows) {
      $query ||= $dbi->insert($row, table => 'book', query => 1);
      $sth ||= $query->sth;
      $sth->execute(map { $row->{$_} } sort keys %$row);
    }

Note that $row must be simple hash reference, such as {title => 'Perl', author => 'Ken'}. and don't forget to sort $row values by $row key asc order.

primary_key

See id option.

after_build_sql

You can filter sql after the sql is build.

    after_build_sql => $code_ref

The following one is one example.

    $dbi->select(
        table => 'book',
        column => 'distinct(name)',
        after_build_sql => sub {
            "select count(*) from ($_[0]) as t1"
        }
    );

The following SQL is executed.

    select count(*) from (select distinct(name) from book) as t1;
table
    table => 'author'

If you want to omit table name in column name and enable into1 and into2 type filter, You must set table option.

    $dbi->execute("select * from book where title = :title and author = :author",
        {title => 'Perl', author => 'Ken', table => 'book');

    # Same
    $dbi->execute(
      "select * from book where title = :book.title and author = :book.author",
      {title => 'Perl', author => 'Ken');
table_alias
    table_alias => {user => 'hiker'}

Table alias. Key is real table name, value is alias table name. If you set table_alias, you can enable into1 and into2 type rule on alias table name.

type_rule_off
    type_rule_off => 1

Turn into1 and into2 type rule off.

type_rule1_off
    type_rule1_off => 1

Turn into1 type rule off.

type_rule2_off
    type_rule2_off => 1

Turn into2 type rule off.

get_column_info

    my $tables = $dbi->get_column_info(exclude_table => qr/^system_/);

get column infomation except for one which match exclude_table pattern.

    [
        {table => 'book', column => 'title', info => {...}},
        {table => 'author', column => 'name' info => {...}}
    ]

get_table_info

    my $tables = $dbi->get_table_info(exclude => qr/^system_/);

get table infomation except for one which match exclude pattern.

    [
        {table => 'book', info => {...}},
        {table => 'author', info => {...}}
    ]

You can set this value to user_table_info.

insert

    $dbi->insert({title => 'Perl', author => 'Ken'}, table  => 'book');

Execute insert statement. First argument is row data. Return value is affected row count.

If you want to set constant value to row data, use scalar reference as parameter value.

    {date => \"NOW()"}

The following opitons are available.

append

Same as select method's append option.

bind_type

Same as execute method's bind_type option.

filter

Same as execute method's filter option.

id
    id => 4
    id => [4, 5]

ID corresponding to primary_key. You can insert a row by id and primary_key.

    $dbi->insert(
        {title => 'Perl', author => 'Ken'}
        parimary_key => ['id1', 'id2'],
        id => [4, 5],
        table => 'book'
    );

The above is same as the followin one.

    $dbi->insert(
        {id1 => 4, id2 => 5, title => 'Perl', author => 'Ken'},
        table => 'book'
    );
prefix
    prefix => 'or replace'

prefix before table name section

    insert or replace into book
primary_key
    primary_key => 'id'
    primary_key => ['id1', 'id2']

Primary key. This is used by id option.

query

Same as execute method's query option.

after_build_sql

Same as execute method's after_build_sql option.

table
    table => 'book'

Table name.

type_rule_off

Same as execute method's type_rule_off option.

timestamp
    timestamp => 1

If this value is set to 1, automatically created timestamp column is set based on timestamp attribute's insert value.

type_rule1_off
    type_rule1_off => 1

Same as execute method's type_rule1_off option.

type_rule2_off
    type_rule2_off => 1

Same as execute method's type_rule2_off option.

wrap
    wrap => {price => sub { "max($_[0])" }}

placeholder wrapped string.

If the following statement

    $dbi->insert({price => 100}, table => 'book',
      {price => sub { "$_[0] + 5" }});

is executed, the following SQL is executed.

    insert into book price values ( ? + 5 );

insert_param

    my $insert_param = $dbi->insert_param({title => 'a', age => 2});

Create insert parameters.

    (title, author) values (title = :title, age = :age);

include_model

    $dbi->include_model('MyModel');

Include models from specified namespace, the following layout is needed to include models.

    lib / MyModel.pm
        / MyModel / book.pm
                  / company.pm

Name space module, extending DBIx::Custom::Model.

MyModel.pm

    package MyModel;
    use DBIx::Custom::Model -base;
    
    1;

Model modules, extending name space module.

MyModel/book.pm

    package MyModel::book;
    use MyModel -base;
    
    1;

MyModel/company.pm

    package MyModel::company;
    use MyModel -base;
    
    1;
    

MyModel::book and MyModel::company is included by include_model.

You can get model object by model.

    my $book_model = $dbi->model('book');
    my $company_model = $dbi->model('company');

See DBIx::Custom::Model to know model features.

insert_timestamp

    $dbi->insert_timestamp(
      [qw/created_at updated_at/] => sub { localtime });

Parameter for timestamp columns when insert method is executed with timestamp option.

If multiple column are specified, same value is used.

like_value EXPERIMENTAL

    my $like_value = $dbi->like_value

Constant code reference for the like value.

    sub { "%$_[0]%" }

mapper

    my $mapper = $dbi->mapper(param => $param);

Create a new DBIx::Custom::Mapper object.

merge_param

    my $param = $dbi->merge_param({key1 => 1}, {key1 => 1, key2 => 2});

Merge parameters.

    {key1 => [1, 1], key2 => 2}

method

    $dbi->method(
        update_or_insert => sub {
            my $self = shift;
            
            # Process
        },
        find_or_create   => sub {
            my $self = shift;
            
            # Process
        }
    );

Register method. These method is called directly from DBIx::Custom object.

    $dbi->update_or_insert;
    $dbi->find_or_create;

model

    my $model = $dbi->model('book');

Get a DBIx::Custom::Model object,

mycolumn

    my $column = $dbi->mycolumn(book => ['author', 'title']);

Create column clause for myself. The follwoing column clause is created.

    book.author as author,
    book.title as title

new

    my $dbi = DBIx::Custom->new(
        dsn => "dbi:mysql:database=dbname",
        user => 'ken',
        password => '!LFKD%$&',
        dbi_option => {mysql_enable_utf8 => 1}
    );

Create a new DBIx::Custom object.

not_exists

    my $not_exists = $dbi->not_exists;

DBIx::Custom::NotExists object, indicating the column is not exists. This is used by clause of DBIx::Custom::Where .

order

    my $order = $dbi->order;

Create a new DBIx::Custom::Order object.

register_filter

    $dbi->register_filter(
        # Time::Piece object to database DATE format
        tp_to_date => sub {
            my $tp = shift;
            return $tp->strftime('%Y-%m-%d');
        },
        # database DATE format to Time::Piece object
        date_to_tp => sub {
           my $date = shift;
           return Time::Piece->strptime($date, '%Y-%m-%d');
        }
    );
    

Register filters, used by filter option of many methods.

type_rule

    $dbi->type_rule(
        into1 => {
            date => sub { ... },
            datetime => sub { ... }
        },
        into2 => {
            date => sub { ... },
            datetime => sub { ... }
        },
        from1 => {
            # DATE
            9 => sub { ... },
            # DATETIME or TIMESTAMP
            11 => sub { ... },
        }
        from2 => {
            # DATE
            9 => sub { ... },
            # DATETIME or TIMESTAMP
            11 => sub { ... },
        }
    );

Filtering rule when data is send into and get from database. This has a little complex problem.

In into1 and into2 you can specify type name as same as type name defined by create table, such as DATETIME or DATE.

Note that type name and data type don't contain upper case. If these contain upper case charactor, you convert it to lower case.

into2 is executed after into1.

Type rule of into1 and into2 is enabled on the following column name.

1. column name
    issue_date
    issue_datetime

This need table option in each method.

2. table name and column name, separator is dot
    book.issue_date
    book.issue_datetime

You get all type name used in database by available_typename.

    print $dbi->available_typename;

In from1 and from2 you specify data type, not type name. from2 is executed after from1. You get all data type by available_datatype.

    print $dbi->available_datatype;

You can also specify multiple types at once.

    $dbi->type_rule(
        into1 => [
            [qw/DATE DATETIME/] => sub { ... },
        ],
    );

select

    my $result = $dbi->select(
        table  => 'book',
        column => ['author', 'title'],
        where  => {author => 'Ken'},
    );
    

Execute select statement.

The following opitons are available.

append
    append => 'order by title'

Append statement to last of SQL.

bind_type

Same as execute method's bind_type option.

column
    column => 'author'
    column => ['author', 'title']

Column clause.

if column is not specified, '*' is set.

    column => '*'

You can specify hash of array reference.

    column => [
        {book => [qw/author title/]},
        {person => [qw/name age/]}
    ]

This is expanded to the following one by using colomn method.

    book.author as "book.author",
    book.title as "book.title",
    person.name as "person.name",
    person.age as "person.age"

You can specify array of array reference, first argument is column name, second argument is alias.

    column => [
        ['date(book.register_datetime)' => 'book.register_date']
    ];

Alias is quoted properly and joined.

    date(book.register_datetime) as "book.register_date"
filter

Same as execute method's filter option.

id
    id => 4
    id => [4, 5]

ID corresponding to primary_key. You can select rows by id and primary_key.

    $dbi->select(
        parimary_key => ['id1', 'id2'],
        id => [4, 5],
        table => 'book'
    );

The above is same as the followin one.

    $dbi->select(
        where => {id1 => 4, id2 => 5},
        table => 'book'
    );
    
param EXPERIMETNAL
    param => {'table2.key3' => 5}

Parameter shown before where clause.

For example, if you want to contain tag in join clause, you can pass parameter by param option.

    join  => ['inner join (select * from table2 where table2.key3 = :table2.key3)' . 
              ' as table2 on table1.key1 = table2.key1']
    prefix => 'SQL_CALC_FOUND_ROWS'

Prefix of column cluase

    select SQL_CALC_FOUND_ROWS title, author from book;
join
    join => [
        'left outer join company on book.company_id = company_id',
        'left outer join location on company.location_id = location.id'
    ]
        

Join clause. If column cluase or where clause contain table name like "company.name", join clausees needed when SQL is created is used automatically.

    $dbi->select(
        table => 'book',
        column => ['company.location_id as location_id'],
        where => {'company.name' => 'Orange'},
        join => [
            'left outer join company on book.company_id = company.id',
            'left outer join location on company.location_id = location.id'
        ]
    );

In above select, column and where clause contain "company" table, the following SQL is created

    select company.location_id as location_id
    from book
      left outer join company on book.company_id = company.id
    where company.name = ?;

You can specify two table by yourself. This is useful when join parser can't parse the join clause correctly.

    $dbi->select(
        table => 'book',
        column => ['company.location_id as location_id'],
        where => {'company.name' => 'Orange'},
        join => [
            {
                clause => 'left outer join location on company.location_id = location.id',
                table => ['company', 'location']
            }
        ]
    );
primary_key
    primary_key => 'id'
    primary_key => ['id1', 'id2']

Primary key. This is used by id option.

query

Same as execute method's query option.

after_build_sql

Same as execute method's after_build_sql option

table
    table => 'book'

Table name.

type_rule_off

Same as execute method's type_rule_off option.

type_rule1_off
    type_rule1_off => 1

Same as execute method's type_rule1_off option.

type_rule2_off
    type_rule2_off => 1

Same as execute method's type_rule2_off option.

where
    # Hash refrence
    where => {author => 'Ken', 'title' => 'Perl'}
    
    # DBIx::Custom::Where object
    where => $dbi->where(
        clause => ['and', 'author = :author', 'title like :title'],
        param  => {author => 'Ken', title => '%Perl%'}
    );
    
    # Array reference 1 (array reference, hash referenc). same as above
    where => [
        ['and', 'author = :author', 'title like :title'],
        {author => 'Ken', title => '%Perl%'}
    ];    
    
    # Array reference 2 (String, hash reference)
    where => [
        'title like :title',
        {title => '%Perl%'}
    ]
    
    # String
    where => 'title is null'

Where clause.

update

    $dbi->update({title => 'Perl'}, table  => 'book', where  => {id => 4});

Execute update statement. First argument is update row data.

If you want to set constant value to row data, use scalar reference as parameter value.

    {date => \"NOW()"}

The following opitons are available.

append

Same as select method's append option.

bind_type

Same as execute method's bind_type option.

filter

Same as execute method's filter option.

id
    id => 4
    id => [4, 5]

ID corresponding to primary_key. You can update rows by id and primary_key.

    $dbi->update(
        {title => 'Perl', author => 'Ken'}
        parimary_key => ['id1', 'id2'],
        id => [4, 5],
        table => 'book'
    );

The above is same as the followin one.

    $dbi->update(
        {title => 'Perl', author => 'Ken'}
        where => {id1 => 4, id2 => 5},
        table => 'book'
    );
prefix
    prefix => 'or replace'

prefix before table name section

    update or replace book
primary_key
    primary_key => 'id'
    primary_key => ['id1', 'id2']

Primary key. This is used by id option.

query

Same as execute method's query option.

after_build_sql

Same as execute method's after_build_sql option.

table
    table => 'book'

Table name.

timestamp
    timestamp => 1

If this value is set to 1, automatically updated timestamp column is set based on timestamp attribute's update value.

type_rule_off

Same as execute method's type_rule_off option.

type_rule1_off
    type_rule1_off => 1

Same as execute method's type_rule1_off option.

type_rule2_off
    type_rule2_off => 1

Same as execute method's type_rule2_off option.

where

Same as select method's where option.

wrap
    wrap => {price => sub { "max($_[0])" }}

placeholder wrapped string.

If the following statement

    $dbi->update({price => 100}, table => 'book',
      {price => sub { "$_[0] + 5" }});

is executed, the following SQL is executed.

    update book set price =  ? + 5;

update_all

    $dbi->update_all({title => 'Perl'}, table => 'book', );

Execute update statement for all rows. Options is same as update method.

update_param

    my $update_param = $dbi->update_param({title => 'a', age => 2});

Create update parameter tag.

    set title = :title, author = :author

update_timestamp

    $dbi->update_timestamp(updated_at => sub { localtime });

Parameter for timestamp columns when update method is executed with timestamp option.

where

    my $where = $dbi->where(
        clause => ['and', 'title = :title', 'author = :author'],
        param => {title => 'Perl', author => 'Ken'}
    );

Create a new DBIx::Custom::Where object.

setup_model

    $dbi->setup_model;

Setup all model objects. columns of model object is automatically set, parsing database information.

show_datatype

    $dbi->show_datatype($table);

Show data type of the columns of specified table.

    book
    title: 5
    issue_date: 91

This data type is used in type_rule's from1 and from2.

show_tables

    $dbi->show_tables;

Show tables.

show_typename

    $dbi->show_typename($table);

Show type name of the columns of specified table.

    book
    title: varchar
    issue_date: date

This type name is used in type_rule's into1 and into2.

ENVIRONMENTAL VARIABLES

DBIX_CUSTOM_DEBUG

If environment variable DBIX_CUSTOM_DEBUG is set to true, executed SQL and bind values are printed to STDERR.

DBIX_CUSTOM_DEBUG_ENCODING

DEBUG output encoding. Default to UTF-8.

DEPRECATED FUNCTIONALITY

DBIx::Custom

    # Attribute methods
    data_source # will be removed at 2017/1/1
    dbi_options # will be removed at 2017/1/1
    filter_check # will be removed at 2017/1/1
    reserved_word_quote # will be removed at 2017/1/1
    cache_method # will be removed at 2017/1/1
    
    # Methods
    create_query # will be removed at 2017/1/1
    apply_filter # will be removed at 2017/1/1
    select_at # will be removed at 2017/1/1
    delete_at # will be removed at 2017/1/1
    update_at # will be removed at 2017/1/1
    insert_at # will be removed at 2017/1/1
    register_tag # will be removed at 2017/1/1
    default_bind_filter # will be removed at 2017/1/1
    default_fetch_filter # will be removed at 2017/1/1
    insert_param_tag # will be removed at 2017/1/1
    register_tag # will be removed at 2017/1/1
    register_tag_processor # will be removed at 2017/1/1
    update_param_tag # will be removed at 2017/1/1
    
    # Options
    select method relation option # will be removed at 2017/1/1
    select method param option # will be removed at 2017/1/1
    select method column option [COLUMN, as => ALIAS] format
      # will be removed at 2017/1/1
    execute method's sqlfilter option # will be removed at 2017/1/1
    
    # Others
    execute("select * from {= title}"); # execute method's
                                        # tag parsing functionality
                                        # will be removed at 2017/1/1
    Query caching # will be removed at 2017/1/1

DBIx::Custom::Model

    # Attribute methods
    filter # will be removed at 2017/1/1
    name # will be removed at 2017/1/1
    type # will be removed at 2017/1/1

DBIx::Custom::Query

    # Attribute methods
    default_filter # will be removed at 2017/1/1
    table # will be removed at 2017/1/1
    filters # will be removed at 2017/1/1
    
    # Methods
    filter # will be removed at 2017/1/1

DBIx::Custom::QueryBuilder

    # Attribute methods
    tags # will be removed at 2017/1/1
    tag_processors # will be removed at 2017/1/1
    
    # Methods
    register_tag # will be removed at 2017/1/1
    register_tag_processor # will be removed at 2017/1/1
    
    # Others
    build_query("select * from {= title}"); # tag parsing functionality
                                            # will be removed at 2017/1/1

DBIx::Custom::Result

    # Attribute methods
    filter_check # will be removed at 2017/1/1
    
    # Methods
    end_filter # will be removed at 2017/1/1
    remove_end_filter # will be removed at 2017/1/1
    remove_filter # will be removed at 2017/1/1
    default_filter # will be removed at 2017/1/1

DBIx::Custom::Tag

    This module is DEPRECATED! # will be removed at 2017/1/1

BACKWARDS COMPATIBILITY POLICY

If a functionality is DEPRECATED, you can know it by DEPRECATED warnings except for attribute method. You can check all DEPRECATED functionalities by document. DEPRECATED functionality is removed after five years, but if at least one person use the functionality and tell me that thing I extend one year each time he tell me it.

EXPERIMENTAL functionality will be changed without warnings.

This policy was changed at 2011/6/28

BUGS

Please tell me bugs if found.

<kimoto.yuki at gmail.com>

http://github.com/yuki-kimoto/DBIx-Custom

AUTHOR

Yuki Kimoto, <kimoto.yuki at gmail.com>

COPYRIGHT & LICENSE

Copyright 2009-2011 Yuki Kimoto, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

2 POD Errors

The following errors were encountered while parsing the POD:

Around line 2815:

You forgot a '=back' before '=head2'

Around line 3147:

Unknown directive: =itme