Using Having(count()) with CIs active record - php

Question

I have the following SQL query but I can't seem to find out how I would change this query to make it work with CI:
SELECT *
FROM Table1
JOIN Table2 ON Table2.tID = Table1.tID
JOIN Table3 ON Table3.vID = Table2.vID
WHERE vegetable
IN (
'Potatoe', 'Carrot'
)
GROUP BY Table1.tID
HAVING COUNT( DISTINCT vegetable ) =2
Here is what I have so far on CI:
$arrCount = count($array);
$this->db->select('*');
this->db->from('Table1');
$this->db->join('Table2', 'Table2.tID = Table1.tID');
$this->db->join('Table3', 'Table3.vID = Table2.vID');
$this->db->where_in('vegetable', $array);
$this->db->group_by("Table1.tID");
$this->db->having('vegetable');
$this->db->count_all($arrCount);
$q = $this->db->get();
But doing this gives me the following sql statement:
Table 'DatabaseTest.2' doesn't exist
SELECT COUNT(*) AS `numrows` FROM `2`
I am pretty sure the ActiveRecord count I have used is incorrect but I am not sure what else it would be because I have found any COUNT() function with CI.
So my question is how can I make my SQL query in CodeIgniter?
Extra note, I have also tried running the query using CIs $this->db->query but get an array error, when looking with the in.
$this->db->query('SELECT *
FROM Table1
JOIN Table2 ON Table2.tID = Table1.tID
JOIN Table3 ON Table3.vID = Table2.vID
WHERE vegetables
IN (
' .$array . '
)
GROUP BY Table1.tID
HAVING COUNT( DISTINCT vegetables ) =' . $arrCount);
And heres the error message:
Unknown column 'Array' in 'where clause'
So it is assuming that I am using a where instead of a where in it looks like. Again can someone help me get my sql to work with CIs active record?

Answer 1

I haven't tested the first query with active records, but wouldn't this work? count_all is a query of on it's own. The first parameter is suppose to be the table... you entered the size of your array as the table which is 2!!! active records reference
$arrCount = sizeof($array);
$this->db->select('*');
this->db->from('Table1');
$this->db->join('Table2', 'Table2.tID = Table1.tID');
$this->db->join('Table3', 'Table3.vID = Table2.vID');
$this->db->where_in('vegetable', $array);
$this->db->group_by("Table1.tID");
$this->db->having('COUNT(DISTINCT vegetable)', $arrCount);
$q = $this->db->get();
Also, for the query, you need to convert your array into a string:
$this->db->query('SELECT *
FROM Table1
JOIN Table2 ON Table2.tID = Table1.tID
JOIN Table3 ON Table3.vID = Table2.vID
WHERE vegetables
IN (
' .implode(',',$array) . '
)
GROUP BY Table1.tID
HAVING COUNT( DISTINCT vegetables ) =' . $arrCount);

Answer 2

$this->db->query('SELECT *
FROM Table1
JOIN Table2 ON Table2.tID = Table1.tID
JOIN Table3 ON Table3.vID = Table2.vID
WHERE vegetables
IN ("' . implode('", "', $array) . '")'
GROUP BY Table1.tID
HAVING COUNT( DISTINCT vegetables ) =' . $arrCount);
Use implode() to turn your array into a MySQL readable string.
EDIT: Implode with quotes.

Answer 3

I might suggest get $this->db->count_all($arrCount); line away, at less until you get this working.