In my case I have a table name "friends" which has two attributes:
account_id
fb_id
I try to get all the account_id based on fb_id, and for this wrote the query as below:
$response = $dynamoClient->getItem ( array(
"TableName" => "facebook_friendlist",
"ConsistentRead" => true,
"Key" => array(
"fb_id" => array(
"S" => "171092723281123"//$fbId
)
),
"ProjectionExpression" => "account_id"
) );
But its not getting executed. I also tried to write the same query using getItem(),scan(),getIterator() but no result.
Help me out with the right way. Thanks in advance.
Related
I have a "users" collection containing 2 arrays of objects (cards and prizes) each of these 2 can contain data from different companies marked with the "id_company" field.
$list = $users->find(
array(
'cards.id_company' => '... id company ...',
'cards.is_active' => true,
),
array(
'projection' => array(
'_id' => 1,
'full_name' => 1,
'cards.$.id_company' => '...id company...',
'prizes.$.id_company' => '...id company...',
),
'limit' => 5,
)
);
I'm trying to select only the data relating to one company, consequently excluding the others, but I get the following error: Cannot specify more than one positional proj. per query.
Any solutions?
I have this query in Laravel:
Models::select('*')->group_by('user_name')->order_by(DB::raw('count(user_name)'), 'desc')->take(3)->get();
It returns top 3 users by the number they appear in the table.
Q: How can I also get the count parameter(how many times they appear?)
Current response:
array(
"Tim","John","Luke"
);
I need something like this:
array(
array(
"user" => "Tim",
"count" => 3
),
array(
"user" => "John",
"count" => 2
),
array(
"user" => "Luke",
"count" => 1
)
);
Thanks!
You should do the COUNT in the select part of the query and alias it, then use that alias in the ordering.
Something like this, perhaps.
Models::select('*', DB::raw('count(user_name) AS user_count'))->group_by('user_name')->order_by(DB::raw('user_count'), 'desc')->take(3)->get();
I'm using mongodb 2.4 and added fulltext index to the "title" field in one the collection. How should I search something in that field using php?
This is the code I use right now:
$params = array(
'_id' => array(
'$gt' => (int)$gt
)
);
$r = $this->collection->find( $params )->limit($limit);
This seem to be the answer to my question:
<?php
$result = $db->command(
array(
'text' => 'bar', //this is the name of the collection where we are searching
'search' => 'hotel', //the string to search
'limit' => 5, //the number of results, by default is 1000
'project' => Array( //the fields to retrieve from db
'title' => 1
)
)
);
http://www.php.net/manual/en/mongodb.command.php#111891
I'm working on a rating system. When a user rates, $inc increments the field, and addToSet adds the user_id to make sure the user only clicks rate once. I am checking if the user_id is already in the x field before updating, but that is another query which I'd rather avoid. Can I reach this purpose without having to write another query? I mean, $addToSet only adds if there is no value like that; can I instead get affected rows? Can you suggest other queries?
Thank you!
..->update(
array("_id" => $idob),
array(
'$inc' => array($type => (int) 1),
'$addToSet' => array("x" => (int) $user_id)
)
);
Ok I see the problem.
..->update(
array("_id" => $idob),
array(
'$inc' => array($type => (int) 1),
'$addToSet' => array("x" => (int) $user_id)
)
);
The problem is that you need a conditional $inc there so that it only $incs if it does add to set.
This is not possible with a unique index since unique indexes work from the root of the document atm. Also you probably want to use the $inc as a form of pre-aggregation or what not.
One method could be:
update(
array('_id' => $idob, 'x' => array('$nin' => array($user_id))),
array(
'$inc' => array($type => 1),
'$push' => array('x' => (int)$user_id)
)
)
This will only do the update if that user_id does not already exist in x.
Originaly posted on cakephp Q&A but i'll put it up here in hope of getting some answers.
I have a bunch of companies that has a status of 0 as default but sometimes get a higher status. Now i want to use the high status if exists but revert to 0 if not. i have tried a bunch of different approaches but i always get either only the ones with status 0 or the ones with the status i want, never giving me status if exists and 0 if not.
Gives me only the status i specify, not giving me the ones with status 0:
'Company' => array (
'conditions' => array (
'OR' => array(
'Company.status' => 0,
'Company.status' => $status,
)
)
)
Gives me only status of 0:
'Company' => array (
'conditions' => array (
'OR' => array(
'Company.status' => $status,
'Company.status' => 0
)
)
)
Status definition and retrieving data in code:
function getCountry($id = null, $status = null) {
// Bunch of code for retrieving country with $id and all it's companies etc, all with status 0.
$status_less_companies = $this->Country->find...
if ($status) {
$status_companies = $this->Country->find('first', array(
'conditions' => array(
'Country.id' => $id
),
'contain' => array(
'Product' => array (
'Company' => array (
'conditions' => array (
'OR' => array(
'Company.status' => $status,
'Company.status' => 0
)
)
)
)
)
)
}
// Mergin $status_less_companies and $status_companies and returning data to flex application.
}
I changed the name for the models for this question just to make more sense, people are generaly frighten away when i tell them i work with cakephp for my flex application. I guess the logic to this question doesn't make sense but trust me that it makes sense in my application.
Thanks!
Try
'Company' => array (
'conditions' => array (
'OR' => array(
array('Company.status' => 0),
array('Company.status' => $status),
)
)
)
In the cookbook it says to wrap the or conditions in arrays if they are pertaining to the same field
http://book.cakephp.org/2.0/en/models/retrieving-your-data.html#complex-find-conditions
I'm not sure to have understood what results you expect. If you want to retrieve all records having status = 0, plus let's say the one having status = 3, you could use an 'IN' instead of an 'OR'.
In Cake, you would write it like this:
$status = 3;
$conditions = array('Company.status' => array(0, $status));
You can also fetch record by using following method:
put values in an array
e.g. $arr=array(1,2);
$res = $this->Model->find('all', array(
'conditions' =>array('Model.filedname'=>$arr),
'model.id' => 'desc'
));
I hope you will find answer.
$this->loadModel('Color');
$colors = $this->Color->find('all', [
'conditions' => [
'Color.is_blocked' => 0,
'Color.is_deleted' => 0,
'OR' => [
[
'Color.isAdmin' => $user_data['id'],
],
[
'Color.isAdmin' => 0,
]
],
]
]);