5\. CRUD simple table (ID, ...some data) PDO SQLite
===================================================
**[HOME ](http://phporacle.altervista.org/php-oracle-main-menu/)2.Sept.2015 Download - see site\_ver2.rar from my article 9.**
Excellent code to learn object oriented programming, model-view-controller code separation (structured programming), single page application (require scripts, not URL them), most code outside Apache doc root.
**1\. Download sqlitestudio and install DDL below.**
\--\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
-- sqlite 3
--\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
/\*
SELECT \* FROM message ;
select \* from zodiac ;
\*/
/\*
http://dev:8083/test/books/a01cookbook/tema.php
J:\\dev\_web\\htdocs\\test\\books\\a01cookbook\\tema.php
sqlite db is: J:\\dev\_web\\htdocs\\test\\books\\a01cookbook\\tema.sqlite
SELFJOIN TABLE :
1. C INSERT frm data,
2. R DISPLAY tbl, row,
3. V VALIDATE, E set\_exception\_handler
Not neccessarily here:
U UPDATE and D DELETE WITH J:\\aplp\\aplp\\sqlitestudio\\SQLiteStudio.exe
TEME (msgs-PORUKE I replays-ODGOVORI) SELFJOIN
TEME (msgs-PORUKE I replays-ODGOVORI) SELFJOIN
----------------------------------------------------------------
5 KEYS: id,thread\_id,parent\_id,level,thread\_pos
----------------------------------------------------------------
1 1 0 0 0 TEMA1 (thread1) by ss @ 2015-03-25 00:41 (99 bytes)
2 1 1 1 1 funkcije by ss @ 2015-03-25 00:42 (242 bytes)
3 1 2 2 2 funkcija save() by ss @ 2015-03-25 00:52 (1335 bytes)
6 1 2 2 3 funkcija frm\_post() by ss @ 2015-03-25 19:29 (303 bytes)
4 2 0 0 0 TEMA2 CRUD ?ifrarnika sqlite3 by ss ...
5 3 0 0 0 TEMA3 MAPE web servera by ss ...
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Otvoriti novu temu (nit, thread)
\*/
-- sqlite db: J:\\dev\_web\\htdocs\\test\\books\\a01cookbook\\tema.sqlite
CREATE TABLE message (
id INTEGER PRIMARY KEY AUTOINCREMENT,
posted\_on DATETIME NOT NULL,
author CHAR(255),
subject CHAR(255),
body MEDIUMTEXT,
thread\_id INT UNSIGNED NOT NULL,
parent\_id INT UNSIGNED NOT NULL,
level INT UNSIGNED NOT NULL,
thread\_pos INT UNSIGNED NOT NULL
);
--sqlite db: J:\\dev\_web\\htdocs\\test\\books\\a01cookbook\\zodiac.sqlite
CREATE TABLE zodiac (
id INT UNSIGNED NOT NULL,
sign CHAR(11),
symbol CHAR(13),
planet CHAR(7),
element CHAR(5),
start\_month TINYINT,
start\_day TINYINT,
end\_month TINYINT,
end\_day TINYINT,
PRIMARY KEY(id)
)
;
INSERT INTO zodiac VALUES (1,'Aries','Ram','Mars','fire',3,21,4,19);
INSERT INTO zodiac VALUES (2,'Taurus','Bull','Venus','earth',4,20,5,20);
INSERT INTO zodiac VALUES (3,'Gemini','Twins','Mercury','air',5,21,6,21);
INSERT INTO zodiac VALUES (4,'Cancer','Crab','Moon','water',6,22,7,22);
INSERT INTO zodiac VALUES (5,'Leo','Lion','Sun','fire',7,23,8,22);
INSERT INTO zodiac VALUES (6,'Virgo','Virgin','Mercury','earth',8,23,9,22);
INSERT INTO zodiac VALUES (7,'Libra','Scales','Venus','air',9,23,10,23);
INSERT INTO zodiac VALUES (8,'Scorpio','Scorpion','Mars','water',10,24,11,21);
INSERT INTO zodiac VALUES (9,'Sagittarius','Archer','Jupiter','fire',11,22,12,21);
INSERT INTO zodiac VALUES (10,'Capricorn','Goat','Saturn','earth',12,22,1,19);
INSERT INTO zodiac VALUES (11,'Aquarius','Water Carrier','Uranus','air',1,20,2,18);
INSERT INTO zodiac VALUES (12,'Pisces','Fishes','Neptune','water',2,19,3,20);
**2\. Controller and view ~ 120 lines :
**
<php
// http://dev:8083/test/books/a01cookbook/
// J:\\dev\_web\\htdocs\\test\\books\\a01cookbook\\zodiac.php
// \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
// 1. M O D E L - file where b u i l d\_ q u e r y ( ) is defined
// \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
$fields = array(
'sign'
, 'symbol'
, 'planet'
, 'element'
, 'start\_month'
, 'start\_day'
, 'end\_month'
, 'end\_day'
);
$lbls = array(
'Znak'
, 'Simbol'
, 'Planeta'
, 'Element'
, 'Od mjeseca'
, 'Od dana'
, 'Do mjeseca'
, 'Do dana'
);
**include \_\_DIR\_\_ . '/mdl.php';**
$db = new PDO('sqlite:zodiac.sqlite');
$db->setAttribute(PDO::ATTR\_ERRMODE, PDO::ERRMODE\_EXCEPTION);
// \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
// 2. C O N T R O L L E R
// \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
$cmd = isset($\_REQUEST\['cmd'\]) $\_REQUEST\['cmd'\] : 'show';
switch ($cmd)
{
case 'edit':
try {
$st = $db->prepare('SELECT ' . implode(',',$fields) .
' FROM zodiac WHERE id = ');
$st->execute(array($\_GET\['id'\]));
$row = $st->fetch(PDO::FETCH\_ASSOC);
} catch (Exception $e) {
$row = array();
}
case 'add':
print '<form method="post" action="' .
htmlentities($\_SERVER\['PHP\_SELF'\]) . '">';
print '<input type="hidden" name="cmd" value="save">';
print '<table>';
if ('edit' == $cmd) {
printf('<input type="hidden" name="id" value="%d">',
$\_GET\['id'\]);
}
foreach ($fields as $field) {
if ('edit' == $cmd) {
$value = htmlentities($row\[$field\]);
} else {
$value = '';
}
printf('<tr><td>%s: </td><td><input type="text" name="%s" value="%s">',
$field, $field, $value);
printf('</td></tr>');
}
print '<tr>
<td></td>
<td><input type="submit" value="Save"></td>
</tr>';
print '</table></form>';
break;
case 'save':
try {
$st = build\_query($db,'id',$fields,'zodiac');
print 'Added info.';
} catch (Exception $e) {
print "Couldn't add info: " . htmlentities($e->getMessage());
}
print '<hr>';
case 'show':
// \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
// 3. V I E W - P A G I N A T O R
// \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
default:
$self = htmlentities($\_SERVER\['PHP\_SELF'\]);
/\* without P A G I N A T O R :
foreach ($db->query('SELECT id,sign FROM zodiac') as $row) {
printf('<li> <a href="%scmd=edit&id=%s">%s</a>',
$self,$row\['id'\],htmlentities($row\['sign'\]));
}
\*/
$offset = isset($\_GET\['offset'\]) intval($\_GET\['offset'\]) : 1;
if (! $offset) { $offset = 1; }
$per\_page = 10;
$total = $db->query('SELECT COUNT(\*) FROM zodiac')->fetchColumn(0);
$limitedSQL = 'SELECT \* FROM zodiac ORDER BY id ' .
"LIMIT $per\_page OFFSET " . ($offset-1);
$lastRowNumber = $offset - 1;
print '<a href="'.$self.'cmd=add">Dodati redak</a><hr />';
print '<ol>';
foreach ($db->query($limitedSQL) as $row) {
$lastRowNumber++;
//print "{$row\['sign'\]}"
printf('<li> <a href="%scmd=edit&id=%s">%s</a>',
$self,$row\['id'\],htmlentities($row\['sign'\]));
echo ", {$row\['symbol'\]} ({$row\['id'\]}) <br/>\\n";
}
print '</ol>';
//
indexed\_links($total,$offset,$per\_page);
print "<br/>";
print "(Prikazani retci $offset - $lastRowNumber od $total)";
//
break;
} // e n d
s w i t c h
**3\. Model- universal code ~ 70 lines :**
<php
function build\_query($db, $key\_field, $fields, $table) {
$values = array();
if (! empty($\_POST\[$key\_field\])) {
$update\_fields = array();
foreach ($fields as $field) {
$update\_fields\[\] = "$field = ";
// Assume data is coming from a form
$values\[\] = $\_POST\[$field\];
}
// Add the key field's value to the $values array
$values\[\] = $\_POST\[$key\_field\];
$st = $db->prepare("UPDATE $table SET " .
implode(',', $update\_fields) .
"WHERE $key\_field = ");
} else {
// Start values off with a unique ID
// If your DB is set to generate this value, use NULL instead
$values\[\] = md5(uniqid());
$placeholders = array('');
foreach ($fields as $field) {
// One placeholder per field
$placeholders\[\] = '';
// Assume the data is coming from a form
$values\[\] = $\_POST\[$field\];
}
$st = $db->prepare(
"INSERT INTO $table ($key\_field," .
implode(',',$fields) . ') VALUES ('.
implode(',',$placeholders) .')');
}
$st->execute($values);
return $st;
}
function print\_link($inactive,$text,$offset='') {
if ($inactive) {
print "<span class='inactive'>$text</span>";
} else {
print "<span class='active'>".
"<a href='" . htmlentities($\_SERVER\['PHP\_SELF'\]) .
"offset=$offset'>$text</a></span>";
}
}
function indexed\_links($total,$offset,$per\_page) {
$separator = ' | ';
//
print\_link($offset == 1, '<< Preth', max(1, $offset - $per\_page));
// print all groupings except last one
for ($start = 1, $end = $per\_page;
$end < $total;
$start += $per\_page, $end += $per\_page) {
print $separator;
print\_link($offset == $start, "$start-$end", $start);
}
/\* print the last grouping -
\* at this point, $start points to the element at the beginning
\* of the last grouping
\*/
/\* the text should only contain a range if there's more than
\* one element on the last page. For example, the last grouping
\* of 11 elements with 5 per page should just say "11", not "11-11"
\*/
$end = ($total > $start) "-$total" : '';
print $separator;
print\_link($offset == $start, "$start$end", $start);
//
print $separator;
print\_link($offset == $start, 'Sljed >>',$offset + $per\_page);
}
kod[ edit]($web_docroot_url/inc/utl/edservertxt.php)[ phpinfo]($web_docroot_url/phpinfo_inc.php) EOKOD; /\* call it so: kod\_edit\_run( $idx // script\_dir\_path , $idxscript // script\_name , MDURL); // web\_docroot\_url = (Apache) web server URL \*/ }
|
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