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Manual Reference Pages  -  SQL::MAKER::CONDITION (3)

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NAME

SQL::Maker::Condition - condition object for SQL::Maker

CONTENTS

SYNOPSIS



    my $condition = SQL::Maker::Condition->new(
        name_sep   => .,
        quote_char => `,
    );
    $condition->add(foo_id => 3);
    $condition->add(bar_id => 4);
    $sql = $condition->as_sql(); # (`foo_id`=?) AND (`bar_id`=?)
    @bind = $condition->bind();  # (3, 4)

    # add_raw
    my $condition = SQL::Maker::Condition->new(
        name_sep   => .,
        quote_char => `,
    );
    $condition->add_raw(EXISTS(SELECT * FROM bar WHERE name = ?) => [john]);
    $condition->add_raw(type IS NOT NULL);
    $sql = $condition->as_sql(); # (EXISTS(SELECT * FROM bar WHERE name = ?)) AND (type IS NOT NULL)
    @bind = $condition->bind();  # (john)

    # composite and
    my $other = SQL::Maker::Condition->new(
        name_sep => .,
        quote_char => `,
    );
    $other->add(name => john);
    my $comp_and = $condition & $other;
    $sql = $comp_and->as_sql(); # ((`foo_id`=?) AND (`bar_id`=?)) AND (`name`=?)
    @bind = $comp_and->bind();  # (3, 4, john)

    # composite or
    my $comp_or = $condition | $other;
    $sql = $comp_and->as_sql(); # ((`foo_id`=?) AND (`bar_id`=?)) OR (`name`=?)
    @bind = $comp_and->bind();  # (3, 4, john)



CONDITION CHEAT SHEET

Here is a cheat sheet for conditions.



    IN:        [foo,bar]
    OUT QUERY: `foo` = ?
    OUT BIND:  (bar)

    IN:        [foo,[bar,baz]]
    OUT QUERY: `foo` IN (?, ?)
    OUT BIND:  (bar,baz)

    IN:        [foo,{IN => [bar,baz]}]
    OUT QUERY: `foo` IN (?, ?)
    OUT BIND:  (bar,baz)

    IN:        [foo,{not IN => [bar,baz]}]
    OUT QUERY: `foo` NOT IN (?, ?)
    OUT BIND:  (bar,baz)

    IN:        [foo,{!= => bar}]
    OUT QUERY: `foo` != ?
    OUT BIND:  (bar)

    IN:        [foo,\IS NOT NULL]
    OUT QUERY: `foo` IS NOT NULL
    OUT BIND:  ()

    IN:        [foo,{between => [1,2]}]
    OUT QUERY: `foo` BETWEEN ? AND ?
    OUT BIND:  (1,2)

    IN:        [foo,{like => xaic%}]
    OUT QUERY: `foo` LIKE ?
    OUT BIND:  (xaic%)

    IN:        [foo,[{> => bar},{< => baz}]]
    OUT QUERY: (`foo` > ?) OR (`foo` < ?)
    OUT BIND:  (bar,baz)

    IN:        [foo,[-and,{> => bar},{< => baz}]]
    OUT QUERY: (`foo` > ?) AND (`foo` < ?)
    OUT BIND:  (bar,baz)

    IN:        [foo,[-and,foo,bar,baz]]
    OUT QUERY: (`foo` = ?) AND (`foo` = ?) AND (`foo` = ?)
    OUT BIND:  (foo,bar,baz)

    IN:        [foo_id,\[IN (SELECT foo_id FROM bar WHERE t=?),44]]
    OUT QUERY: `foo_id` IN (SELECT foo_id FROM bar WHERE t=?)
    OUT BIND:  (44)

    IN:        [foo_id, {IN => \[SELECT foo_id FROM bar WHERE t=?,44]}]
    OUT QUERY: `foo_id` IN (SELECT foo_id FROM bar WHERE t=?)
    OUT BIND:  (44)

    IN:        [foo_id,\[MATCH (col1, col2) AGAINST (?),apples]]
    OUT QUERY: `foo_id` MATCH (col1, col2) AGAINST (?)
    OUT BIND:  (apples)

    IN:        [foo_id,undef]
    OUT QUERY: `foo_id` IS NULL
    OUT BIND:  ()

    IN:        [foo_id,{IN => []}]
    OUT QUERY: 0=1
    OUT BIND:  ()

    IN:        [foo_id,{NOT IN => []}]
    OUT QUERY: 1=1
    OUT BIND:  ()

    IN:        [foo_id, [123,sql_type(\3, SQL_INTEGER)]]
    OUT QUERY: `foo_id` IN (?, ?)
    OUT BIND:  (123, sql_type(\3, SQL_INTEGER))

    IN:        [foo_id, sql_type(\3, SQL_INTEGER)]
    OUT QUERY: `foo_id` = ?
    OUT BIND:  sql_type(\3, SQL_INTEGER)

    IN:        [created_on, { >, \DATE_SUB(NOW(), INTERVAL 1 DAY) }]
    OUT QUERY: `created_on` > DATE_SUB(NOW(), INTERVAL 1 DAY)
    OUT BIND:



It is also possible to use the functions exported by SQL::QueryMaker to define the conditions.



    IN:        [foo => sql_in([bar,baz])]
    OUT QUERY: `foo` IN (?,?)
    OUT BIND:  (bar,baz)

    IN:        [foo => sql_lt(3)]
    OUT QUERY: `foo` < ?
    OUT BIND:  (3)

    IN:        [foo => sql_not_in([bar,baz])]
    OUT QUERY: `foo` NOT IN (?,?)
    OUT BIND:  (bar,baz)

    IN:        [foo => sql_ne(bar)]
    OUT QUERY: `foo` != ?
    OUT BIND:  (bar)

    IN:        [foo => sql_is_not_null()]
    OUT QUERY: `foo` IS NOT NULL
    OUT BIND:  ()

    IN:        [foo => sql_between(1,2)]
    OUT QUERY: `foo` BETWEEN ? AND ?
    OUT BIND:  (1,2)

    IN:        [foo => sql_like(xaic%)]
    OUT QUERY: `foo` LIKE ?
    OUT BIND:  (xaic%)

    IN:        [foo => sql_or([sql_gt(bar), sql_lt(baz)])]
    OUT QUERY: (`foo` > ?) OR (`foo` < ?)
    OUT BIND:  (bar,baz)

    IN:        [foo => sql_and([sql_gt(bar), sql_lt(baz)])]
    OUT QUERY: (`foo` > ?) AND (`foo` < ?)
    OUT BIND:  (bar,baz)

    IN:        [foo_id => sql_op(IN (SELECT foo_id FROM bar WHERE t=?),[44])]
    OUT QUERY: `foo_id` IN (SELECT foo_id FROM bar WHERE t=?)
    OUT BIND:  (44)

    IN:        [foo_id => sql_in([sql_raw(SELECT foo_id FROM bar WHERE t=?,44)])]
    OUT QUERY: `foo_id` IN ((SELECT foo_id FROM bar WHERE t=?))
    OUT BIND:  (44)

    IN:        [foo_id, => sql_op(MATCH (@) AGAINST (?),[apples])]
    OUT QUERY: MATCH (`foo_id`) AGAINST (?)
    OUT BIND:  (apples)

    IN:        [foo_id,undef]
    OUT QUERY: `foo_id` IS NULL
    OUT BIND:  ()

    IN:        [foo_id,sql_in([])]
    OUT QUERY: 0=1
    OUT BIND:  ()

    IN:        [foo_id,sql_not_in([])]
    OUT QUERY: 1=1
    OUT BIND:  ()

    IN:        [foo_id, sql_type(\3, SQL_INTEGER)]
    OUT QUERY: `foo_id` = ?
    OUT BIND:  sql_type(\3, SQL_INTEGER)

    IN:        [foo_id, sql_in([sql_type(\3, SQL_INTEGER)])]
    OUT QUERY: `foo_id` IN (?)
    OUT BIND:  sql_type(\3, SQL_INTEGER)

    IN:        [created_on, sql_gt(sql_raw(DATE_SUB(NOW(), INTERVAL 1 DAY))) ]
    OUT QUERY: `created_on` > DATE_SUB(NOW(), INTERVAL 1 DAY)
    OUT BIND:



SEE ALSO

SQL::Maker
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perl v5.20.3 SQL::MAKER::CONDITION (3) 2014-12-22

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