Drupal 7 db_select condition using different tables and conditions

[harikris2007]

Hello friends,
In drupal 7
I have created a new form in theme.inc as follows:

<?php
function mymodule_example_form($form, &$form_state) {
   $form['Looking For']['PropertyCategory'] = array(
    '#type' => 'select', 
    '#title' => t('Looking For'),
    '#options' => array(
      '' => t('Any'), 
      Commercial => t('Commercial'), 
      Residential => t('Residential'), 
     ),
  );

     $form['Type of Property']['PropertyType'] = array(
    '#type' => 'select', 
    '#title' => t('Type of Property'),
    '#options' => array(
      '' => t('Any'), 
      Flat => t('Flat'), 
      Compoundvilla => t('Compoundvilla'), 
     ),
  );


    $form['City ']['City'] = array(
    '#type' => 'select', 
    '#title' => t('City'),
    '#options' => array(
      '' => t('Any'), 
     Doha => t('Doha'), 
          ),
  );


    $form['Location']['Location'] = array(
    '#type' => 'select', 
    '#title' => t('Location'),
    '#options' => array(
      '' => t('Any'), 
      Doha => t('Doha'), 
          ),
  );



    $form['Price Between']['Price1'] = array(
    '#type' => 'select', 
    '#title' => t('Price Between'),
    '#options' => array(
      '' => t('Any'), 
       2000 => t('2000'), 
       3000 => t('3000'),
        4000 => t('4000'),
         5000 => t('5000'),
          10000 => t('10000'),
           50000 => t('50000'),
          ),
  );

    $form['Price Between']['Price2'] = array(
    '#type' => 'select', 
    '#title' => t('Price Between'),
    '#options' => array(
      '' => t('Any'), 
      2000 => t('2000'), 
       3000 => t('3000'),
        4000 => t('4000'),
         5000 => t('5000'),
          10000 => t('10000'),
           50000 => t('50000'),
          ),
  );

    $form['Furnishing']['Furnish'] = array(
    '#type' => 'select', 
    '#title' => t('Furnishing'),
    '#options' => array(
      '' => t('Any'), 
      Furnished => t('Furnished'), 
       UnFurnished => t('UnFurnished'),
      ),
  );

   $form['submit'] = array(
    '#type' => 'submit',
    '#value' => 'Search',
  );

  return $form;
}


?>

#1 is a working search query based on the above form.But i need a drupal7 db_select query with the all these conditions
#2 is my try to create a drupal 7 db_query.But i can't move forward or i'm not sure whether it is right or not.Could you please write down a query for me?

1)

<?php


$qry  = 'SELECT fp.entity_id, field_property_category_value,field_property_type_value, 
         field_city_value, field_price_value, field_location_value, field_furniture_value
         FROM field_data_field_property_category   AS   fpc ';
$qry .= 'JOIN field_data_field_property_type    AS   fpt  ON  fpc.entity_id =fpt.entity_id  ';
$qry .= 'JOIN field_data_field_location   AS  fl  ON   fpt.entity_id =fl.entity_id  ';  
$qry .= 'JOIN  field_data_field_city   AS  fc  ON  fl.entity_id =fc.entity_id  ';   
$qry .= 'JOIN  field_data_field_furniture  AS  ff  ON  fc.entity_id =ff.entity_id  ';   
$qry .= 'JOIN  field_data_field_price  AS  fp  ON  ff.entity_id =fp.entity_id  ';

 $operator = 'WHERE';

if(isset($PropertyCategory) and $PropertyCategory != '') 
{
$qry .= "$operator field_property_category_value ='{$_POST['PropertyCategory']}' ";
$operator = 'AND';
}


if(isset($PropertyType) and $PropertyType != '') {
 $qry .= "$operator field_property_type_value ='{$PropertyType}' ";
 $operator = 'AND';
}


if(isset($City) and $City != '') {
$qry .= "$operator field_city_value ='{$City}' ";
$operator = 'AND';
}


if(isset($Location) and  $Location != '') {
$qry .= "$operator  field_location_value='{$Location}' ";
$operator = 'AND';
}


if(isset($Price1) and  $Price1 != '' and isset($Price2) and $Price2 !=''  ) {
$qry .= "$operator field_price_value >= '{$Price1}' AND  field_price_value <= '{$Price2}' ";  
$operator = 'AND';
}

if(isset($Furnish) and  $Furnish != '' ) {
$qry .= " $operator  field_furniture_value ='$Furnish'";
}


</pre>


#2)

<pre>
$query = db_select('field_data_field_property_category', 'fpc');
    $query->join('field_data_field_property_type', 'fpt', 'fpc.entity_id =fpt.entity_id');
    $query->join('field_data_field_location', 'fl', 'fpt.entity_id =fl.entity_id');
    $query->join('field_data_field_city', 'fc', 'fl.entity_id =fc.entity_id');
    $query->join('field_data_field_furniture', 'ff', 'fc.entity_id =ff.entity_id');
    $query->join('field_data_field_price', 'fp', 'fc.entity_id =fp.entity_id');
    $stat = $query
          ->fields('fb',array('entity_id'))
          ->fields('fpc',array('field_property_category_value'))
          ->fields('fpt',array('field_property_type_value'))
          ->fields('fc',array('field_city_value'))
          ->fields('fp',array('field_price_value'))
          ->fields('fl',array('field_location_value'))
          ->fields('ff',array('field_furniture_value'))
          ->condition('??', array(??,?,),'IN')

     }
          ->orderBy('name', 'ASC')
          ->extend('PagerDefault')
          ->execute();

?>

Please help me and i really need this asap.Thanks in advance.

[LastMitch]

@harikris2007

number 2 is my try to create a drupal 7 db_query.But i can't move forward or i'm not sure whether it is right or not. Could you please write down a query for me?

No, noone will write a query. Why can't you just go to the drupal forum and ask for help there. The reason why because it's their product and it's their template.

[Squidge]

Drupal documentation is very well presented. Have u looked through it?

And as LastMitch said +1

Their forum is probably the best place to ask,

[harikris2007]

thanks for all the replies!!!!!i solved the the problem......