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Jifty::DBI::Column.3pm
Langue: en
Version: 2009-12-31 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
NAME
Jifty::DBI::Column - Encapsulate's a single column in a Jifty::DBI::Record tableDESCRIPTION
This class encapsulate's a single column in a Jifty::DBI::Record table description. It replaces the _accessible method in Jifty::DBI::Record.It has the following accessors: "name type default validator boolean refers_to readable writable length".
new
is_numeric
Returns true if the column is of some numeric type, otherwise returns false.is_string
Returns true if this column is a text fieldserialize_metadata
Returns a hash describing this column object with enough detail to fully describe it in the database. Intentionally skips "record_class", all column attributes starting with "_", and all column attributes which are undefined. The ``known'' attributes in the "attributes" hash are flattened and returned as well. The list of known attributes are:- container
- label hints render_as
- display_length
- valid_values
- available_values
- autocompleted
- documentation
- no_placeholder
- Setting this to a true value causes ``load_by_cols'' in Jifty::DBI::record to not use a placeholder when loading the column. This can allow the database to come up with better query plans in some cases.
serialize_metadata2
Returns a hash describing this column object with enough detail to fully describe it in the database. Intentionally skips "record_class", all column attributes starting with "_", and all column attributes which are undefined.validator
Gets/sets the validator coderef for the column.read
DEPRECATED. Use "$column->readable" instead.write
DEPRECATED. Use "$column->writable" instead.length
DEPRECATED. Use "$column->max_length" instead.until
DEPRECATED. Use "$column->till" instead.active
Returns the a true value if the column method exists for the current application version. The current application version is determined by checking the ``schema_version'' in Jifty::DBI::Record of the column's ``record_class''. This method returns a false value if the column is not yet been added or has been dropped.This method returns a false value under these circumstances:
- •
- Both the "since" trait and "schema_version" method are defined and "schema_version" is less than the version set on "since".
- •
- Both the "till" trait and "schema_version" method are defined and "schema_version" is greater than or equal to the version set on "till".
Otherwise, this method returns true.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre