Zend_db & Zend_paginator - Not having a fun time - php

Question

I am having a serious problem converting my 'select' statement into something that will work with the zend paginator... could someone have a crack at it, as I am having no luck...
Here is my query:
$query = "SELECT
user_id, name, gender, city, province, country, image_id, one_liner, self_description, reputation
FROM
users
WHERE
(
(69.1 * (latitude - " . $user->latitude . ")) *
(69.1 * (latitude - " . $user->latitude . "))
) + (
(69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3)) *
(69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3))
) < " . pow($radius, 2) . "
ORDER BY
(
(69.1 * (latitude - " . $user->latitude . ")) *
(69.1 * (latitude - " . $user->latitude . "))
) + (
(69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3)) *
(69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3))
Here is what I have so far:
$select = $db->select();
$select->from(
array('users'),
array(
'user_id',
'name',
'gender',
'city',
'province',
'country',
'image_id',
'one_liner',
'self_description',
'reputation'
)
);
$select->where("(69.1 * (latitude - " . $user->latitude . ")) * (69.1 * (latitude - " . $user->latitude . "))) + ((69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3)) * (69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3))) < " . pow($radius, 2));
$select->order("(69.1 * (latitude - " . $user->latitude . ")) * (69.1 * (latitude - " . $user->latitude . "))) + ((69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3)) * (69.1 * (longitude - " . $user->longitude . ") * COS(" . $user->latitude . " / 57.3))) ASC");

Answer 1

Why do you have "<" in your order by clause?

Answer 2

What does this have to do with Zend_Paginator? Ah, do you have the query and you don't know how to make a paginator with it, or is the paginator not working with this query?
The only thing I can see is you're missing an opening parenthesis in both the where() and order() clause:
$select->where("((69.1 * [...] ");
$select->order("((69.1 * [...] ");
^
So maybe Zend_Paginator isn't working because the SQL query has errors?
And of course I have to ask: are those variables you're interpolating safe, or should you really be using $db->quote($user->latitude, Zend_Db::FLOAT_TYPE)?

Answer 3

Assuming you are using MVC-pattern, won't this work?
in your bootstrap:
Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination.phtml');
in your controller:
$page = Zend_Paginator::factory($select);
$page->setCurrentPageNumber($this->_getParam('page', 1));
$page->setItemCountPerPage($this->_getParam('par', 20));
$this->view->results= $page;
in your view:
<?php foreach($this->results as $result) : ?>
<!-- print some $result stuff here -->
<?php endforeach;?>
<?= $this->results ?>
then place a pagination.phtml example that you can find on zend manual
-Lo