Using Zend DB. I am trying to figure out how to write this query using the DB Class.
select
org.orgid
org.role
user.userid
user.firstname
from orgTable org
join userTable user on org.userid = user.userid
where org.orgid = 'generated-id'
from the documents I understand or think I understand how to do it with one definition using an AS like condition, but even then Im still not sure. Eventually this will branch out into a multi table join, based on cross table conditions so not sure how to achieve this to begin with.
I think this is what are you looking for
$db = Zend_Db::factory( ...options... );
$select = $db->select()
->from(array('org' => 'orgTable'),
array(
'orgid' => 'org.orgid',
'role' =>'org.role',
'userid' =>'user.userid',
'firstname' =>'user.firstname'
))
->join(array('user' => 'userTable'),
'org.userid = user.userid',array())
->where('org.orgid = ?',$generated_id);
Here is a Zend_Db_Select that returns the result you are looking for.
$select = $db->select()
->from(array('org' => 'orgTable'), array('orgid', 'role'))
->join(array('user' => 'userTable'), 'org.userid = user.userid', array('userid', 'firstname'))
->where('org.orgid = ?', 'generated-id');
You can use the array notation for table names to get the aliased names in the query.
Hope that helps.
In zend framework 2 , the following code helps you what are you looking for
$generated_id = 1 ;
$select = new \Zend\Db\Sql\Select( array('org' =>'orgTable'));
$select->columns(array('orgid','role') )
->join( array('user' => 'userTable'),
'org.userid = user.userid',
array('userid','firstname')
)->where( array('org.orgid' => $generated_id ) );
if your adapter platform is mysql, then for printing sql
$mysqlPlatform = new \Zend\Db\Adapter\Platform\Mysql();
echo $select->getSqlString( $mysqlPlatform );
which print sql as
SELECT
`org`.`orgid` AS `orgid`,
`org`.`role` AS `role`,
`user`.`userid` AS `userid`,
`user`.`firstname` AS `firstname`
FROM
`orgTable` AS `org`
INNER JOIN `userTable` AS `user`
ON `org`.`userid` = `user`.`userid`
WHERE
`org`.`orgid` = '1'
Related
Given a query :
SELECT t1.c1, t2.c1 FROM t1,t2;
How to write it in Zend framework without using joins ?
Try the below join query in zend framework,
$sql = $this->tableGateway->getSql()->select();
$sql->join('table2', "table1.column1 = table2.column1", array(column1,column2), 'inner');
Assuming you have a common field (we'll call it c2), you can do something approximating a JOIN without actually doing a JOIN.
// we'll assume $adapter is an instance of Zend_Db_Adapter_Mysqli
$cols = $adapter->fetchAll(
'
SELECT
t1.c1 AS t1c1,
t2.c1 AS t2c1
FROM t1, t2
WHERE t1.c2 = t2.c2
'
);
Using Zend_Db_Select you can do it this way
$rows = $adapter->select()
->from('t1', array('t1c1' => 'c1'))
->from('t2', array('t2c1' => 'c1'))
->where('t1.c2 = t2.c2')
->query()->fetchAll();
I am trying to pull a list of Events, also seeing which members have paid for the Events. I then want to see if they are on the committee, to see if they have admin permissions.
I have successfully done this, using three SQL queries, then using three foreach loops to build the Array.
I am SURE this can be done with one SQL query and one foreach loop, however I have not yet mastered the JOIN technique.
I am using Expression Engine, Codeigniter Active Record, I will display to you the SQL output and also what my current EE functions look like.
THANKS FOR THE HELP! :D
SQL to select ALL events which are active
SELECT `id` as event_ID, `name` as event_name, `description` as event_description
FROM (`events`)
WHERE `events_category_id` = '1'
AND `active` = 1
ORDER BY `name` asc
EE CODE to achieve this:
$query = $this->theDb->select('id as event_ID, name as event_name, description as event_description')
->order_by("name", "asc")
->get_where('events', array('event_category_id'=>$event_type,'active'=>1));
**
SQL to find what EVENT IDs the user has paid for
**
SELECT DISTINCT `products`.`event_ID` as joinedID
FROM (`transactions_items`)
JOIN `transactions` ON `transactions`.`id` = `transactions_items`.`id`
JOIN `products` ON `products`.`id` = `transactions_items`.`product_id`
JOIN `events` ON `events`.`id` = `products`.`event_ID`
WHERE `transactions`.`member_id` = 27500
AND `events`.`active` = 1
AND `event_category_id` = '1'
ORDER BY `events`.`name` asc
EE CODE to achieve this
$query = $this->theDb->select('products.event_ID as joinedID')
->distinct()
->order_by("events.name", "asc")
->join('transactions', 'transactions.id = transactions_items.id')
->join('products', 'products.id = transactions_items.product_id')
->join('events', 'events.id = products.event_ID')
->get_where('transactions_items', array('transactions.member_id' => $memberID, 'events.active' => 1,'activity_category_id'=>$activity_type));
SQL to find ADMIN rights
SELECT `events`.`id` as event_ID, `admins`.`admin_role_id` as role_id, `admins_roles`.`name` as role_description
FROM (`admins`)
JOIN `admins_roles` ON `admins`.`admin_role_id` = `admins_roles`.`id`
JOIN `events` ON `events`.`id` = `admins`.`event_ID`
WHERE `admins`.`member_id` = 27500
AND `events`.`active` = 1
EE CODE to achieve this
$query = $this->theDb->select('events.id as event_ID, admins.admin_role_id as role_id, admins_roles.name as role_description')
->join('admins_roles', 'admins.admin_role_id = admins_roles.id')
->join('events', 'events.id = admins.event_ID')
->get_where('admins', array('admins.member_id' => $memberID, 'events.active' => 1));
FOR EACH LOOPS
// Create list of Events setting defaults
foreach($events_list as $row)
{
$combinedEvents[$row->event_ID] = array(
'eventID' => $row->event_ID,
'eventName' => $row->event_name,
'eventDescription' => $row->event_description,
'isJoined' => 0,
'roleID' => 0,
'roleDescription' => "",
);
}
// Add Committee roles
foreach($admin_list as $row)
{
$combinedEvents[$row->event_ID]['roleID'] = $row->role_id;
$combinedEvents[$row->event_ID]['roleDescription'] = $row->role_description;
}
// Add Transactions
foreach($transaction_list as $row)
{
$combinedEvents[$row->joinedID]['isJoined'] = 1;
}
I don't quite understand the FOREACH part because I've never touched PHP - but you should be able to solve the multiple SQL queires using the ;with clause. I have created an example in response to another question here and here. Is this what you're looking for?
I'm using Zend DB to generate a query using the following code:
$table->select()
->setIntegrityCheck(false) //required for multi-table join
->from('modules')
->joinInner(
'basket_modules',
'modules.id = basket_modules.id')
->joinInner(
'baskets',
'baskets.id = basket_modules.basket_id')
->where('baskets.id = ?', $this->id);
This generates the SQL:
SELECT modules.*, basket_modules.*, baskets.*
FROM modules
INNER JOIN basket_modules ON modules.id = basket_modules.id
INNER JOIN baskets ON baskets.id = basket_modules.basket_id
WHERE (baskets.id = '3')
My problem here is with the SELECT part, it's selecting all 3 tables instead of just modules, which is the one I want. So the query I would want to generate is:
SELECT `modules`.*
FROM `modules`
#etc...
How can I do this? If I edit the query manually and run it, it returns what I want so there shouldn't be a problem with the syntax.
Please look at the example in the manual Zend_Db_Select. Scroll to the Example #13.
To select no columns from a table, use an empty array for the list of
columns. This usage works in the from() method too, but typically you
want some columns from the primary table in your queries, whereas you
might want no columns from a joined table.
$select = $db->select()
->from(array('p' => 'products'),
array('product_id', 'product_name'))
->join(array('l' => 'line_items'),
'p.product_id = l.product_id',
array() ); // empty list of columns
you can specify column name for other table and main table like below
$table->select()
->setIntegrityCheck(false) //required for multi-table join
->from('modules',array('modules.*'))
->joinInner(
'basket_modules',
'modules.id = basket_modules.id',array('basket_modules.id'))
->joinInner(
'baskets',
'baskets.id = basket_modules.basket_id',array('baskets.id'))
->where('baskets.id = ?', $this->id);
so sql will be like
SELECT modules.*, basket_modules.id, baskets.id
FROM modules
INNER JOIN basket_modules ON modules.id = basket_modules.id
INNER JOIN baskets ON baskets.id = basket_modules.basket_id
WHERE (baskets.id = '3')
$table->select()
->setIntegrityCheck(false) //required for multi-table join
->from('modules')
->joinInner(
'basket_modules',
'modules.id = basket_modules.id',array(''))
->joinInner(
'baskets',
'baskets.id = basket_modules.basket_id',array(''))
->where('baskets.id = ?', $this->id);
Give a empty array as the third parameter of join otherwise it will select all the field from the table joined.If you want some fields then specify field names in the array while joining.
In ZF1 it worked like this:
$selectColumns = array(
'*',
'orders_total' => "(".$db->select()->from("orders", array("COUNT(*)"))->where("orders.parent_id=mytable.id").")",
);
$select = $db->select()->from('mytable', $selectColumns);
How to do this in the ZF2? Thanks.
Please try this.
$sql = new Sql($this->_adapter);
$mainSelect = $sql->select()->from('mytable');
$subQry = $sql->select()
->from('orders')
->columns(array('orderCount' => new \Zend\Db\Sql\Expression('COUNT(orders.id)')));
$mainSelect->columns(
array(
'id',
'orders_total' => new \Zend\Db\Sql\Expression('?', array($subQry)),
)
);
$statement = $sql->prepareStatementForSqlObject($mainSelect);
$comments = $statement->execute();
$resultSet = new ResultSet();
$resultSet->initialize($comments);
return $resultSet->toArray();
Link: ZF2 - subqueries
You can try this:
// Make your query here using the builder if you wish,
// but we will need to convert to string for the Expression
$sub = new Select('orders');
$sub->columns(array(new Expression('COUNT(*) as total')))
->where(array('id' => 4))
;
// You could just create an expression..
$subquery = new \Zend\Db\Sql\Expression("({$sub->getSqlString()})");
$select = new \Zend\Db\Sql\select('tablename'); // this is inside a
$select->columns(array('*', 'orders_total' => $subquery));
the output will be something like this:
SELECT
.*,
(SELECT COUNT(*) as total FROM "orders" WHERE "id" = '4') AS orders_total
FROM tablename
I haven't figured out a nice way of using the query builder to perform these kind of queries without having to use raw queries.
Without any more info you could try:
$selectColumns = array(
'*',
'orders_total' => "(".$db->select()->from("orders", array("COUNT(*)"))->where("orders.parent_id", "mytable.id").")",
);
$select = $db->select()->from('mytable', $selectColumns);
You will need to add at top with the use statements:
use Zend\Db\Sql\Select;
use Zend\Db\Sql\Where;
You can try restructuring your SQL to something like:
SELECT
*,
SUM(IF(O.parent_id IS NULL, 0, 1)) AS orders_total
FROM mytable
LEFT JOIN orders O ON mytable.id = O.parent_id
Which you can represent using Zend Framework 2 as:
$select = new Select('mytable');
$select->columns(array(
'*',
'orders_total' => new Expression("SUM(IF(O.parent_id IS NULL, 0, 1))")
));
$select->join(array('O', 'orders'),
"mytable.id = O.parent_id",
Select::JOIN_LEFT);
$select->group(array('mytable.id'));
$result = $dbh->selectWith($select);
Assuming $dbh is your database adapter.
Apologies for all this code, anyhow Im re-working a query into the Zend query way of working, this is what I have so far:
$db = Zend_Registry::get ( "db" );
$stmt = $db->query('
SELECT recipe_pictures.picture_id, recipe_pictures.picture_filename, course.course_name, cuisines.name, recipes.id, recipes.Title, recipes.Method, recipes.author, recipes.SmallDesc, recipes.user_id, recipes.cuisine, recipes.course, recipes.Created_at, recipes.vegetarian, recipes.Acknowledgements, recipes.Time, recipes.Amount, recipes.view_count, recipes.recent_ips, guardian_writers.G_item, guardian_writers.G_type
FROM recipes
LEFT JOIN course ON recipes.course = course.course_id
LEFT JOIN recipe_pictures ON recipes.id = recipe_pictures.recipe_id
LEFT JOIN cuisines ON recipes.cuisine = cuisines.id
LEFT JOIN guardian_writers ON recipes.author = guardian_writers.G_author
WHERE recipes.id = ?', $id);
$stmt->setFetchMode(Zend_Db::FETCH_ASSOC);
$recipes = $stmt->fetchAll();
return $recipes;
That one above works, trying to get the Zend version properly, my effort is below.
$db = Zend_Registry::get ( "db" );
$select = $db->select()
->from(array('r' => 'recipes'))
->join(array('c' => 'course'),
'r.course = c.course_id')
->join(array('rp' => 'recipe_pictures'),
'r.id = rp.recipe_id')
->join(array('cui' => 'cuisines'),
'r.cuisine = cui.id')
->join(array('gw' => 'guardian_writers'),
'r.author = gw.G_author')
->where(' id = ? ', $id);
$recipes = $db->fetchRow($select);
return $recipes;
If anyone can spot an error Id be very grateful, thanks
Use joinLeft instead of join to produce left joins.
To fetch specific columns from a table, rather than all (*) use this:
->from(array('r' => 'recipes'), array('id', 'title', 'method'))
or
->joinLeft(array('rp' => 'recipe_pictures'),
'r.id = rp.recipe_id',
array('picture_id', 'picture_filename')
)
To fetch no columns from a table, pass an empty array as the third parameter.
The join method provides an sql INNER JOIN. If you want to get a LEFT JOIN you should use joinLeft.