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=head1 NAME |
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Postgres::Handler::HTML - HTML Component for PostgreSQL data. |
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=head1 DESCRIPTION |
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Accessors for PostgreSQL data. Simplifies data access through a series of standard class methods. |
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=head1 SYNOPSIS |
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# Instantiate Object |
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# |
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use Postgres::Handler; |
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my $DB = Postgres::Handler->new(dbname=>'products',dbuser=>'postgres',dbpass=>'pgpassword'); |
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# Retrieve Data & List Records |
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# |
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$DB->PrepLEX('SELECT * FROM products'); |
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while ($item=$DB->GetRecord()) { |
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print "$item->{PROD_ID}\t$item->{PROD_TITLE}\t$item->{PROD_QTY}\n"; |
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} |
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# Add / Update Record based on CGI Form |
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# assuming objCGI is an instatiated CGI object |
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# if the CGI param 'prod_id' is set we update |
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# if it is not set we add |
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# |
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my %cgimap; |
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foreach ('prod_id','prod_title','prod_qty') { $cgimap{$_} = $_; } |
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$DB->AddUpdate( CGI=>$objCGI , CGIKEY=>'prod_id', |
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TABLE=>'products', DBKEY=>'prod_id', |
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hrCGIMAP=>\%cgimap |
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); |
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=head1 EXAMPLE |
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#!/usr/bin/perl |
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# |
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# Connect to the postgres XYZ database owned by user1/mypass |
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# Set the primary key field for the abc table to the field named pkid |
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# Print the contents of the fldone field in the abc table where the pkid=123 |
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# |
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use Postgres::Handler::HTML; |
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our $STORE = Postgres::Handler::HTML->new(dbname=>'xyz', dbuser=>'user1', dbpass=>'mypass'); |
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$STORE->data('abc!PGHkeyfld'=>'pkid'); |
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$STORE->ShowThe('abc!fldone',123); |
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exit(1); |
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=head1 REQUIRES |
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Subclass of Postgres::Handler |
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Postgres::Handler |
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+- CGI::Carp |
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+- CGI::Util |
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+- Class::Struct |
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+- DBI |
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=cut |
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#============================================================================== |
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#============================================================================== |
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# |
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# Package Preparation |
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# Sets up global variables and invokes required libraries. |
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# |
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#============================================================================== |
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package Postgres::Handler::HTML; |
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use base ("Postgres::Handler"); |
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#require Postgres::Handler; |
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#@ISA=qw(Postgres::Handler); |
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$VERSION = 1.0; |
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#============================================================================== |
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=head1 METHODS |
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=cut |
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#============================================================================== |
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#-------------------------------------------------------------------- |
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=head2 CheckBox() |
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Produce an HTML Checkbox for the specified boolean field |
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Parameters |
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TABLE => name of table to get data from |
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CBNAME => name to put on the checkbox, defaults to VALUE |
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VALUE => field that contains the t/f use to set the checkmark |
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LABEL => what to put next to the checkbox as a label (defaults to field name) |
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KEY => value of the key used to lookup the data in the database |
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CHECKED => set to '1' to check by default if KEY not found |
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SCRIPT => script tags (or class tags) to add to checkbox HTML |
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NOLABEL => set to '1' to skip printing of label |
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Action |
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prints out the HTML Checkbox, checked if field is true |
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Return |
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0 = failure, sets error message, get with lasterror() |
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1 = success |
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=cut |
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#---------------------------- |
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sub CheckBox() { |
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my $self = shift; |
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my %options = @_; |
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# These options must be defined |
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# |
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if ( |
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! exists $options{TABLE} || |
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! exists $options{VALUE} || |
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! exists $options{KEY} |
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) { |
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$self->data(ERRMSG,qq[Postgres::Handler::HTML::Checkbox TABLE '$options{TABLE}' VALUE '$options{VALUE}' and KEY '$options{KEY}' must be defined.]); |
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return; |
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} |
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# Set defaults if not present |
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# |
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$options{CBNAME} ||= $options{VALUE}; |
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$options{LABEL} ||= $options{VALUE} if (!$options{NOLABEL}); |
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# Get Data If Not Set |
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# |
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my $val = $self->Field(DATA=>"$options{TABLE}!$options{VALUE}", KEY=>$options{KEY}); |
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$val = 1 if (!$val && $options{CHECKED} && !$options{KEY}); |
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135
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# Script/Class Optional HTML tag elements |
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# |
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0
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my $tagmod = $options{SCRIPT}; |
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139
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0
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my $selector = ($val ? 'checked' : ''); |
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print qq[ $options{LABEL}]; |
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0
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return 1; |
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} |
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144
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145
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146
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#-------------------------------------------------------------------- |
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148
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=head2 Pulldown() |
149
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150
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Produce an HTML pulldown menu for the specified table/fields |
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152
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Parameters |
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TABLE => name of table to get data from |
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PDNAME => name to put on the pulldown, defaults to VALUE |
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VALUE => which field we stick into the option values |
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SHOW => which field we spit out on the selection menu, defaults to VALUE |
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SELECT => mark the one with this VALUE as selected |
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ALLOWBLANK => set to 1 to allow blank selection (noted as ---) |
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ORDERBY => special ordering, defaults to SHOW field |
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WHERE => filtering selection clause (without WHERE, i.e. pdclass='class1') |
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SCRIPT => event script, such as 'onChange="DoSumthin();"' |
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PREADD => address to hashref of Add-ons for begining of list |
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key = the value |
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content = show |
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GROUP => group the data |
166
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167
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Action |
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prints out the HTML pulldown |
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170
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=cut |
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#---------------------------- |
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sub Pulldown() { |
173
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0
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0
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1
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my $self = shift; |
174
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0
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my %options = @_; |
175
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176
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# These options must be defined |
177
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# |
178
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0
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0
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0
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if ( |
179
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! exists $options{TABLE} || |
180
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! exists $options{VALUE} |
181
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0
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) { return; } |
182
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183
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184
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# Set defaults if not present |
185
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# |
186
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0
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0
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$options{PDNAME} ||= $options{VALUE}; |
187
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0
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0
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$options{SHOW} ||= $options{VALUE}; |
188
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0
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0
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$options{ORDERBY} ||= $options{SHOW}; |
189
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0
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0
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my $where = ($options{WHERE} ? "WHERE $options{WHERE}" : ''); |
190
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0
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0
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my $group = ($options{GROUP} ? "GROUP BY $options{GROUP}" : ''); |
191
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192
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0
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print qq[ |
193
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0
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0
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print qq[] if ($options{ALLOWBLANK}); |
194
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195
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0
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my $selector; |
196
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0
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0
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if ( $self->PrepLEX(qq[SELECT $options{VALUE}, $options{SHOW} FROM $options{TABLE} $where $group ORDER BY $options{ORDERBY}]) ) { |
197
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0
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while (my ($value,$show) = $self->GetRecord(-rtype=>'ARRAY')) { |
198
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0
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0
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$selector = (($value eq $options{SELECT}) ? 'selected' : ''); |
199
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0
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print qq[]; |
200
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} |
201
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} else { |
202
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0
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print $self->lasterror(); |
203
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} |
204
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0
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print qq[]; |
205
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} |
206
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207
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#-------------------------------------------------------------------- |
208
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209
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=head2 RadioButtons() |
210
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211
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Produce an HTML Radio Button menu for the specified table/fields |
212
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213
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Parameters |
214
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TABLE => name of table to get data from |
215
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RBNAME => name to put on the pulldown, defaults to VALUE |
216
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VALUE => which field we stick into the option values |
217
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SHOW => which field we spit out on the menu, defaults to VALUE |
218
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SELECT => mark the one with this VALUE as selected |
219
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ORDERBY => special ordering, defaults to SHOW field |
220
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WHERE => filtering selection clause (without WHERE, i.e. rbclass='class1') |
221
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222
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Action |
223
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prints out the HTML Radio Buttons |
224
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225
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=cut |
226
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#---------------------------- |
227
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sub RadioButtons() { |
228
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0
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|
0
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1
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my $self = shift; |
229
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0
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my %options = @_; |
230
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|
231
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|
|
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|
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# These options must be defined |
232
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# |
233
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0
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0
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0
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if ( |
234
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! exists $options{TABLE} || |
235
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! exists $options{VALUE} |
236
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0
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) { return; } |
237
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238
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# Set defaults if not present |
239
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# |
240
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0
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0
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$options{RBNAME} ||= $options{VALUE}; |
241
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0
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0
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$options{SHOW} ||= $options{VALUE}; |
242
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0
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0
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$options{ORDERBY} ||= $options{SHOW}; |
243
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0
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0
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my $where = ($options{WHERE} ? "WHERE $options{WHERE}" : ''); |
244
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245
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0
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my $selector; |
246
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0
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$self->PrepLEX(qq[SELECT $options{VALUE}, $options{SHOW} FROM $options{TABLE} $where ORDER BY $options{ORDERBY}]); |
247
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0
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while (my ($value,$show) = $self->GetRecord(-rtype=>'ARRAY')) { |
248
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0
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0
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$selector = (($value eq $options{SELECT}) ? 'checked' : ''); |
249
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0
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print qq[$show]; |
250
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} |
251
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} |
252
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253
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#-------------------------------------------------------------------- |
254
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255
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=head2 ShowHeader() |
256
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257
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Display header for retrieved records in an HTML row
258
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259
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One of these 2 id required |
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DATAREF => reference to hash storing record |
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DISPCOLS => reference to array of columns to show, defaults to hash key names |
262
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263
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Optional parameters |
264
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FULLNAME => set to 1 to show full field name, otherwise we trunc up to first _ |
265
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SORT => set to 1 to sort keys |
266
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267
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=cut |
268
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#---------------------------- |
269
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sub ShowHeader(@) { |
270
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0
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0
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1
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my $self = shift; |
271
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0
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my %options = @_; |
272
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0
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my $dRef = $options{DATAREF}; |
273
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0
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my $key; |
274
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my @keys; |
275
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0
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my $kref; |
276
|
0
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|
my $disp; |
277
|
0
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|
my $cols = 0; |
278
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279
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# Header Row |
280
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# |
281
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0
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0
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if ($options{DISPCOLS}) { |
282
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0
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|
$kref = $options{DISPCOLS}; |
283
|
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|
} else { |
284
|
0
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0
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|
|
@keys = $options{SORT} ? sort keys %{$dRef} : keys %{$dRef}; |
|
0
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|
0
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|
285
|
0
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|
$kref = \@keys; |
286
|
|
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|
|
|
} |
287
|
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|
288
|
0
|
|
|
|
|
|
print qq[ | ];
289
|
0
|
|
|
|
|
|
foreach $key (@{$kref}) { |
|
0
|
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|
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|
290
|
0
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|
|
|
$disp = $key; |
291
|
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|
|
|
292
|
|
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|
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|
|
# Full Name or Trunc to first _? |
293
|
|
|
|
|
|
|
# |
294
|
0
|
0
|
|
|
|
|
if (!$options{FULLNAME}) { $disp =~ s/(.*?)_//; } |
|
0
|
|
|
|
|
|
|
295
|
|
|
|
|
|
|
|
296
|
0
|
|
|
|
|
|
print qq[\n\t | $disp | ];
297
|
0
|
|
|
|
|
|
++$cols; |
298
|
|
|
|
|
|
|
} |
299
|
0
|
|
|
|
|
|
print qq[ | ];
300
|
0
|
|
|
|
|
|
return $cols; |
301
|
|
|
|
|
|
|
} |
302
|
|
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|
|
303
|
|
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|
|
|
|
#-------------------------------------------------------------------- |
304
|
|
|
|
|
|
|
|
305
|
|
|
|
|
|
|
=head2 ShowRecord() |
306
|
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
Display retrieved records in an HTML row
308
|
|
|
|
|
|
|
|
309
|
|
|
|
|
|
|
Parameters |
310
|
|
|
|
|
|
|
DATAREF => reference to hash storing record (required) |
311
|
|
|
|
|
|
|
|
312
|
|
|
|
|
|
|
DATAMODREF => reference to hash storing data modifiers |
313
|
|
|
|
|
|
|
The field specified by the hash key is replaced |
314
|
|
|
|
|
|
|
with the data specified in the value. |
315
|
|
|
|
|
|
|
Use $Record{???} to place the record field ??? within |
316
|
|
|
|
|
|
|
the substitution string. |
317
|
|
|
|
|
|
|
|
318
|
|
|
|
|
|
|
If the modifier starts with ~eval() then the modifier |
319
|
|
|
|
|
|
|
evaluates and returns it's result. For example: |
320
|
|
|
|
|
|
|
$datmodref{THISFIELD} = '~eval(substr($Record{FIELD},0,10))'; |
321
|
|
|
|
|
|
|
would display the first 10 characters of the field. |
322
|
|
|
|
|
|
|
|
323
|
|
|
|
|
|
|
DISPLAYREF => reference to hash storing special cell formats for |
324
|
|
|
|
|
|
|
each data element. Key = element, value = | modifier |
325
|
|
|
|
|
|
|
|
326
|
|
|
|
|
|
|
DISPCOLS => reference to array of columns to show, defaults to hash key names |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
TRIMDATES => set to 'minute' or 'day' to trim date fields |
329
|
|
|
|
|
|
|
date fields are any ending in 'LASTUPDATE' |
330
|
|
|
|
|
|
|
WRAP => set to 1 to allow data wrapping |
331
|
|
|
|
|
|
|
SORT => set to 1 to sort keys |
332
|
|
|
|
|
|
|
ASFORM => set to 1 to show data as input form fields |
333
|
|
|
|
|
|
|
NOTABLE => set to 1 to drop all table html tags |
334
|
|
|
|
|
|
|
OUTPUT => output file handle |
335
|
|
|
|
|
|
|
ROWMOD => modifier to | row definition
336
|
|
|
|
|
|
|
CELLMOD => modifier to each | Cell definition |
337
|
|
|
|
|
|
|
|
338
|
|
|
|
|
|
|
=cut |
339
|
|
|
|
|
|
|
#---------------------------- |
340
|
|
|
|
|
|
|
sub ShowRecord(@) { |
341
|
0
|
|
|
0
|
1
|
|
my $self = shift; |
342
|
0
|
|
|
|
|
|
my %options = @_; |
343
|
0
|
|
|
|
|
|
my $dRef = $options{DATAREF}; |
344
|
0
|
|
|
|
|
|
my $dModRef = $options{DATAMODREF}; |
345
|
0
|
|
|
|
|
|
my $DispRef = $options{DISPLAYREF}; |
346
|
0
|
0
|
|
|
|
|
my $wrap = ($options{WRAP} ? '' : 'nowrap'); |
347
|
0
|
|
|
|
|
|
my $key; |
348
|
|
|
|
|
|
|
my @keys; |
349
|
0
|
|
|
|
|
|
my $kref; |
350
|
0
|
|
|
|
|
|
my $data; |
351
|
0
|
|
|
|
|
|
my $temp; |
352
|
0
|
|
|
|
|
|
my $dval; |
353
|
0
|
|
|
|
|
|
my $fldname; |
354
|
0
|
|
0
|
|
|
|
$options{OUTPUT} = $options{OUTPUT} || STDOUT; |
355
|
|
|
|
|
|
|
|
356
|
|
|
|
|
|
|
# Display Order |
357
|
|
|
|
|
|
|
# |
358
|
0
|
0
|
|
|
|
|
if ($options{DISPCOLS}) { |
359
|
0
|
|
|
|
|
|
$kref = $options{DISPCOLS}; |
360
|
|
|
|
|
|
|
} else { |
361
|
0
|
0
|
|
|
|
|
@keys = $options{SORT} ? sort keys %{$dRef} : keys %{$dRef}; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
362
|
0
|
|
|
|
|
|
$kref = \@keys; |
363
|
|
|
|
|
|
|
} |
364
|
|
|
|
|
|
|
|
365
|
|
|
|
|
|
|
# Data Row |
366
|
|
|
|
|
|
|
# |
367
|
0
|
0
|
|
|
|
|
if (!$options{NOTABLE}) { print {$options{OUTPUT}} qq[ | ]; }
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
368
|
0
|
|
|
|
|
|
foreach $key (@{$kref}) { |
|
0
|
|
|
|
|
|
|
369
|
0
|
|
|
|
|
|
$data = $dRef->{$key}; |
370
|
|
|
|
|
|
|
|
371
|
|
|
|
|
|
|
# Date field & Trim Set |
372
|
|
|
|
|
|
|
# |
373
|
0
|
0
|
0
|
|
|
|
if ($options{TRIMDATES} && ($key =~ /LASTUPDATE$/)) { |
374
|
0
|
0
|
|
|
|
|
$data = ( |
|
|
0
|
|
|
|
|
|
375
|
|
|
|
|
|
|
$options{TRIMDATES} =~ /^minute$/i ? substr($dRef->{$key},0,16) : |
376
|
|
|
|
|
|
|
$options{TRIMDATES} =~ /^day$/i ? substr($dRef->{$key},0,10) : |
377
|
|
|
|
|
|
|
$dRef->{$key} |
378
|
|
|
|
|
|
|
); |
379
|
|
|
|
|
|
|
} |
380
|
|
|
|
|
|
|
|
381
|
|
|
|
|
|
|
# Setup Input Modifiers For "ASFORM" |
382
|
|
|
|
|
|
|
# |
383
|
0
|
0
|
|
|
|
|
if ($options{ASFORM}) { $dModRef->{$key} = qq[]; } |
|
0
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
|
385
|
|
|
|
|
|
|
# Modifier? |
386
|
|
|
|
|
|
|
# |
387
|
0
|
0
|
|
|
|
|
if ( $dModRef->{$key} ) { |
388
|
0
|
|
|
|
|
|
$data = $dModRef->{$key}; |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
# Evaluate |
391
|
|
|
|
|
|
|
# |
392
|
0
|
0
|
|
|
|
|
if ($data =~ /^~eval\(.*\)/o) { |
393
|
0
|
|
|
|
|
|
$data =~ s/^~eval\((.*)\)/$1/; |
394
|
|
|
|
|
|
|
|
395
|
|
|
|
|
|
|
# Replace RECORD{} with field info |
396
|
|
|
|
|
|
|
# |
397
|
0
|
|
|
|
|
|
while ($data =~ /\$Record{(.*?)}/) { |
398
|
0
|
|
|
|
|
|
$fldname = $1; |
399
|
0
|
|
|
|
|
|
$dval = $dRef->{$fldname}; |
400
|
0
|
|
|
|
|
|
$dval =~ s/'/\\'/gs; |
401
|
0
|
|
|
|
|
|
$data =~ s/\$Record{$fldname}/'$dval'/gs; |
402
|
|
|
|
|
|
|
} |
403
|
|
|
|
|
|
|
|
404
|
|
|
|
|
|
|
# Evaluate the expression |
405
|
|
|
|
|
|
|
# |
406
|
0
|
|
|
|
|
|
$data = eval $data; |
407
|
|
|
|
|
|
|
|
408
|
|
|
|
|
|
|
# Convert ' in data back to ' |
409
|
|
|
|
|
|
|
# |
410
|
0
|
|
|
|
|
|
$data =~ s/\\'/'/gs; |
411
|
|
|
|
|
|
|
|
412
|
|
|
|
|
|
|
# Plain Old Data Substitution |
413
|
|
|
|
|
|
|
# |
414
|
|
|
|
|
|
|
} else { |
415
|
0
|
|
|
|
|
|
$data =~ s/\$Record{(.*?)}/$dRef->{$1}/gs; |
416
|
|
|
|
|
|
|
} |
417
|
|
|
|
|
|
|
} |
418
|
|
|
|
|
|
|
|
419
|
|
|
|
|
|
|
# Show The Formatted Data |
420
|
|
|
|
|
|
|
# |
421
|
0
|
0
|
|
|
|
|
if (!$options{NOTABLE}) { print {$options{OUTPUT}} qq[\n\t | {$key}>]; } |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
422
|
0
|
|
|
|
|
|
print {$options{OUTPUT}} $data; |
|
0
|
|
|
|
|
|
|
423
|
0
|
0
|
|
|
|
|
if (!$options{NOTABLE}) { print {$options{OUTPUT}} qq[ | ]; }
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
424
|
|
|
|
|
|
|
} |
425
|
0
|
0
|
|
|
|
|
if (!$options{NOTABLE}) { print {$options{OUTPUT}} qq[ | ]; }
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
426
|
|
|
|
|
|
|
} |
427
|
|
|
|
|
|
|
|
428
|
|
|
|
|
|
|
|
429
|
|
|
|
|
|
|
#-------------------------------------------------------------------- |
430
|
|
|
|
|
|
|
|
431
|
|
|
|
|
|
|
=head2 ValOrZero() |
432
|
|
|
|
|
|
|
|
433
|
|
|
|
|
|
|
Set these CGI parameters to 0 if not defined. Used for checkbox |
434
|
|
|
|
|
|
|
form variables when we want to ensure the value is set to 0 (false) |
435
|
|
|
|
|
|
|
if they are not set via the CGI interface. |
436
|
|
|
|
|
|
|
|
437
|
|
|
|
|
|
|
HTML checkboxes are NOT passed to the CGI module if they are not |
438
|
|
|
|
|
|
|
checked, so this function helps us out by forcing the assumption |
439
|
|
|
|
|
|
|
that the CGI parameters passed here should be 0 if the are not |
440
|
|
|
|
|
|
|
received. |
441
|
|
|
|
|
|
|
|
442
|
|
|
|
|
|
|
Parameters |
443
|
|
|
|
|
|
|
[0] - the CGI variable |
444
|
|
|
|
|
|
|
[1] - an array of CGI parameters to be set |
445
|
|
|
|
|
|
|
|
446
|
|
|
|
|
|
|
Action |
447
|
|
|
|
|
|
|
Sets the named CGI parameters to 0 if they are not set, otherwise |
448
|
|
|
|
|
|
|
leaves the original value intact. |
449
|
|
|
|
|
|
|
|
450
|
|
|
|
|
|
|
=cut |
451
|
|
|
|
|
|
|
sub ValOrZero(@) { |
452
|
0
|
|
|
0
|
1
|
|
my $self = shift; |
453
|
0
|
|
|
|
|
|
my $objCGI= shift; |
454
|
0
|
|
|
|
|
|
my @parms = @_; |
455
|
|
|
|
|
|
|
|
456
|
0
|
|
0
|
|
|
|
foreach (@parms) { $objCGI->param($_ , $objCGI->param($_) || 0); } |
|
0
|
|
|
|
|
|
|
457
|
|
|
|
|
|
|
} |
458
|
|
|
|
|
|
|
|
459
|
|
|
|
|
|
|
#-------------------------------------------------------------------- |
460
|
|
|
|
|
|
|
|
461
|
|
|
|
|
|
|
=head2 ShowThe |
462
|
|
|
|
|
|
|
|
463
|
|
|
|
|
|
|
Load the DB record and spit out the value of the specified field |
464
|
|
|
|
|
|
|
|
465
|
|
|
|
|
|
|
=over |
466
|
|
|
|
|
|
|
|
467
|
|
|
|
|
|
|
=item Parameters |
468
|
|
|
|
|
|
|
|
469
|
|
|
|
|
|
|
Parameters are positional. |
470
|
|
|
|
|
|
|
|
471
|
|
|
|
|
|
|
Required |
472
|
|
|
|
|
|
|
<0> field name to be displayed in "table!field" format |
473
|
|
|
|
|
|
|
|
474
|
|
|
|
|
|
|
<1> key, lookup the record based on the Postgres::Handler key |
475
|
|
|
|
|
|
|
that has been set for this field. Reference the |
476
|
|
|
|
|
|
|
Postgres::Handler->Field method for more info. |
477
|
|
|
|
|
|
|
|
478
|
|
|
|
|
|
|
Optional |
479
|
|
|
|
|
|
|
[2] trim to this many characters |
480
|
|
|
|
|
|
|
|
481
|
|
|
|
|
|
|
=back |
482
|
|
|
|
|
|
|
|
483
|
|
|
|
|
|
|
=cut |
484
|
|
|
|
|
|
|
sub ShowThe(@) { |
485
|
0
|
|
|
0
|
1
|
|
my $self = shift; |
486
|
0
|
|
0
|
|
|
|
my $retval = $self->Field(DATA=>$_[0], KEY=>$_[1]) || ''; |
487
|
0
|
0
|
0
|
|
|
|
$retval = substr($retval,0,$_[2]) if ($_[2] && ($retval ne '')); |
488
|
0
|
|
|
|
|
|
print $retval; |
489
|
|
|
|
|
|
|
} |
490
|
|
|
|
|
|
|
|
491
|
|
|
|
|
|
|
|
492
|
|
|
|
|
|
|
|
493
|
|
|
|
|
|
|
|
494
|
|
|
|
|
|
|
1; |
495
|
|
|
|
|
|
|
__END__ |
| |