jQuery UI autoselect question
For example, if I mistype here and enter 3 instead of 4, how can I resurrect the autocomplete function, so I get offered the options for the id's beginning with 4 after deleting the wrong id value and entering 4?
(As it is now, after deleting the 3..... id and entering 4 I get no more selection.)
#!/usr/bin/env perl
use warnings;
use 5.014;
use utf8;
use Mojolicious::Lite;
use DBI;
my $table = 'my_test_table';
my $dbh = DBI->connect( 'dbi:SQLite:dbname=my_test_db.db', '', '',
{ RaiseError => 1, PrintError => 0, AutoCommit => 1, sqlite_unicode => 1, }
) or die $DBI::errstr;
$dbh->do( "CREATE TEMP TABLE $table ( firstname TEXT, lastname TEXT, id INTEGER UNIQUE )" );
my $sth = $dbh->prepare( "INSERT INTO $table ( firstname, lastname, id ) VALUES ( ?, ?, ?)" );
$sth->execute( 'Charlie', 'Harper', '321456' );
$sth->execute( 'Rachel Karen', 'Green', '253422' );
$sth->execute( 'John', 'Dorian', '433542' );
$sth->execute( 'Homer', 'Simson', '433541' );
get '/eingabe';
get '/search_db/:opt' => sub {
my $self = shift;
my $opt = $self->param( 'opt' );
my $term = $self->param( 'term' );
my $ref;
if ( $opt eq 'autocomplete' ) {
my $sth = $dbh->prepare( "SELECT id FROM $table WHERE id LIKE ?" );
$sth->execute( $term . '%');
while ( my $row = $sth->fetchrow_arrayref() ) {
push @$ref, @$row;
}
} elsif ( $opt eq 'row' ) {
$ref = $dbh->selectall_arrayref( "SELECT * FROM $table WHERE id == ?", { Slice => {} }, $term );
die scalar @$ref if @$ref != 1;
$ref = $ref->[0];
}
$self->render( json => $ref );
};
app->start;
__DATA__
@@ eingabe.html.ep
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.3/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js"></script>
<script type="text/javascript">
$( document ).ready( function() {
var searchID = '#id';
$( searchID ).autocomplete({
source: function( request, response ) {
$.getJSON( '/search_db/autocomplete', request, function( dataFromServer ) {
var suggestions = [];
var len = dataFromServer.length;
for ( var i = 0; i < len; i++ ) {
suggestions.push( dataFromServer[i].toString() );
}
if ( len == 1 ) {
$( searchID ).autocomplete( 'disable' );
$.getJSON( '/search_db/row', { term :开发者_开发百科 suggestions[0] }, function( data ) {
for ( var key in data ) {
if( data.hasOwnProperty( key ) ) {
var input = document.getElementById( key );
input.value = data[key];
}
}
});
}
response( suggestions );
});
},
select: function( event, ui ) {
$.getJSON( '/search_db/row', { term : ui.item.value }, function( data ) {
for ( var key in data ) {
if( data.hasOwnProperty( key ) ) {
var input = document.getElementById( key );
input.value = data[key];
}
}
});
},
delay: 100
});
});
</script>
</head>
<body>
<form>
<table>
<tr><td>Firstname:</td><td><input type="text" id="firstname" name="firstname" /></td></tr>
<tr><td>Lastname:</td><td><input type="text" id="lastname" name="lastname" /></td></tr>
<tr><td>ID:</td><td><input type="number" id="id" name="id" autofocus="on" /></td></tr>
</table><br />
<input type="submit" value="OK"/>
</form>
</body>
</html>
When I add $( searchID ).autocomplete( 'enable' ); after response( suggestions );
it works better.
<script type="text/javascript">
$( document ).ready( function() {
var searchID = '#id';
$( searchID ).autocomplete({
source: function( request, response ) {
$.getJSON( '/search_db/autocomplete', request, function( dataFromServer ) {
var suggestions = [];
var len = dataFromServer.length;
for ( var i = 0; i < len; i++ ) {
suggestions.push( dataFromServer[i].toString() );
}
if ( len == 1 ) {
$( searchID ).autocomplete( 'disable' );
$.getJSON( '/search_db/row', { term : suggestions[0] }, function( data ) {
for ( var key in data ) {
if( data.hasOwnProperty( key ) ) {
var input = document.getElementById( key );
input.value = data[key];
}
}
});
}
response( suggestions );
$( searchID ).autocomplete( 'enable' );
});
},
select: function( event, ui ) {
$.getJSON( '/search_db/row', { term : ui.item.value }, function( data ) {
for ( var key in data ) {
if( data.hasOwnProperty( key ) ) {
var input = document.getElementById( key );
input.value = data[key];
}
}
});
},
delay: 100
});
});
</script>
加载中,请稍侯......
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