1HTML::FormHandler::ModeUls:e:rCDCBoIn(t3r)ibuted Perl DoHcTuMmLe:n:tFaotrimoHnandler::Model::CDBI(3)
2
3
4

NAME

6       HTML::FormHandler::Model::CDBI - Class::DBI model class
7       (non-functioning)
8

VERSION

10       version 0.40068
11

SYNOPSIS

13           package MyApplication::Form::User;
14           use strict;
15           use base 'HTML::FormHandler::Model::CDBI';
16
17
18           # Associate this form with a CDBI class
19           has '+item_class' => ( default => 'MyDB::User' );
20
21           # Define the fields that this form will operate on
22           sub field_list {
23               return {
24                   [
25                       name        => 'Text',
26                       age         => 'PosInteger',
27                       sex         => 'Select',
28                       birthdate   => 'DateTimeDMYHM',
29                   ]
30               };
31           }
32

DESCRIPTION

34       A Class::DBI database model for HTML::FormHandler
35
36       I don't use CDBI, so this module almost certainly doesn't work.  It is
37       only being left here as a starting point in case somebody is interested
38       in getting it to work.
39
40       Patches and tests gratefully accepted.
41

METHODS

43   item_class
44       The name of your database class.
45
46   init_item
47       This is called first time $form->item is called.  It does the
48       equivalent of:
49
50           return $self->item_class->retrieve( $self->item_id );
51
52   guess_field_type
53       Pass in a column and assigns field types.  Must set $self->item_class
54       to return the related item class.  Returns the type in scalar context,
55       returns the type and maybe the related table in list context.
56
57       Currently returns:
58
59           DateTime        - for a has_a relationship that isa DateTime
60           Select          - for a has_a relationship
61           Multiple        - for a has_many
62           DateTime        - if the field ends in _time
63           Text            - otherwise
64
65   lookup_options
66       Returns a array reference of key/value pairs for the column passed in.
67       Calls $field->label_column to get the column name to use as the label.
68       The default is "name".  The labels are sorted by Perl's cmp sort.
69
70       If there is an "active" column then only active are included, with the
71       exception being if the form (item) has currently selected the inactive
72       item.  This allows existing records that reference inactive items to
73       still have those as valid select options.  The inactive labels are
74       formatted with brackets to indicate in the select list that they are
75       inactive.
76
77       The active column name is determined by calling:
78
79           $active_col = $form->can( 'active_column' )
80               ? $form->active_column
81               : $field->active_column;
82
83       Which allows setting the name of the active column globally if your
84       tables are consistently named (all lookup tables have the same column
85       name to indicate they are active), or on a per-field basis.
86
87       In addition, if the foreign class is the same as the item's class (or
88       the class returned by item_class) then options pointing to item are
89       excluded.  The reason for this is for a table column that points to the
90       same table (self referenced), such as a "parent" column.  The
91       assumption is that a record cannot be its own parent.
92
93   init_value
94       Populate $field->value with object ids from the CDBI object.  If the
95       column expands to more than one object then an array ref is set.
96
97   validate_model
98       Validates fields that are dependent on the model.  Currently, "unique"
99       fields are checked  to make sure they are unique.
100
101       This validation happens after other form validation.  The form already
102       has any field values entered in $field->value at this point.
103
104   validate_unique
105       Checks that the value for the field is not currently in the database.
106
107   items_same
108       Returns true if the two passed in cdbi objects are the same object.  If
109       both are undefined returns true.
110
111   obj_key
112       returns a key for a given object, or undef if the object is undefined.
113

AUTHOR

115       FormHandler Contributors - see HTML::FormHandler
116

118       This software is copyright (c) 2017 by Gerda Shank.
119
120       This is free software; you can redistribute it and/or modify it under
121       the same terms as the Perl 5 programming language system itself.
122
123
124
125perl v5.36.0                      2022-07-22 HTML::FormHandler::Model::CDBI(3)
Impressum