how can i count data that will retrieved by $dataProvider ?
i've tried to use this code,
$dataProvider = new CActiveDataProvider('Model');
$dataProvider->totalItemCount;
In yii2
For total count use
$dataProvider->getTotalCount()
For page count then
$dataProvider->getCount()
Refrence page
http://www.yiiframework.com/doc-2.0/yii-data-basedataprovider.html#getTotalCount()-detail
I think you have to first fill the dataprovider with data then get the count:
$dataProvider->getData();
var_dump($dataProvider->totalItemCount);
or use the function to retrieve directly:
var_dump($dataProvider->getTotalItemCount());
Related
I am using the following code to load a categorys record:
$res = JTable::getInstance('category');
$res->load(array('id' => $catid));
Now I would like to load the record based on its title which whould be matched against a SQL LIKE-pattern - is it possible to do this in a simple way with JTable, or do I need $dbo?
Far as I know JTable is made to be simple and carry only one element at a time, and through the primary key. If you really want something more advanced, I recomend that you use JDatabaseQuery way.
// Get a db connection.
$db = JFactory::getDbo();
// Create a new query object.
$query = $db->getQuery(true);
// Select all articles for users who have a username which starts with 'a'.
// Order it by the created date.
$query
->select(array('a.*', 'b.username', 'b.name'))
->from('#__content AS a')
->join('INNER', '#__users AS b ON (a.created_by = b.id)')
->where('b.username LIKE \'a%\'')
->order('a.created DESC');
// Reset the query using our newly populated query object.
$db->setQuery($query);
// Load the results as a list of stdClass objects.
$results = $db->loadObjectList();
In your case, instead of "$db->loadObjectList();" you can use "$db->loadObject();" for load just one item.
Source:
http://docs.joomla.org/Accessing_the_database_using_JDatabase/3.1
When performing user search with the new Twitter API (can be checked here https://dev.twitter.com/console), found the problem with limiting the number of returned results, as well as with paging.
So, let's say I want to get 5 results from searching and use count parameter:
https://api.twitter.com/1.1/users/search.json?q=Online&count=5
It works correctly, returns 5 records. But if I set count to zero, there is still one result returned:
https://api.twitter.com/1.1/users/search.json?q=Online&count=0
Is it expected?
Then i tried to use paging for the same purposes (wanted to get the first page, and limit results in it):
https://api.twitter.com/1.1/users/search.json?q=Online&per_page=5&page=1
Now it looks like the limit doesn't work at all, there are much more than 5 records returned.
Does anybody know if something is wrong with the queries, or it's an API bug?
**Try like this : **
https://api.twitter.com/1.1/users/search.json
Parameters:
1) page : Specifies the page
2) count : Number of user results to retrieve per page and max is 20.
Following example will return 1 result from page 2 for search keyword "wordpress"
<?php
require_once('api/TwitterAPIExchange.php');
require_once("token.php"); // For your access token - viral
$searchword = "wordpress";
$url = 'https://api.twitter.com/1.1/users/search.json';
$getfield = '?&page=2&count=1&q='.$searchword;
$requestMethod = 'GET';
$twitter = new TwitterAPIExchange($settings);
$followers = $twitter->setGetfield($getfield)
->buildOauth($url, $requestMethod)
->performRequest();
$json = json_decode($followers, true);
print_r($json);
?>
i think the 'per_page' is not a valid parameter in this 1.1 API.
And then, it returns the default number 20.
https://dev.twitter.com/docs/api/1.1/get/users/search
I am trying to convert some old code to use Fluent Nhibernate.
Old code:
allOrders.OrderBy(x => x.OrdersLineItems.Count);
How do I convert it to something like:
query.AddOrder(new Order(????, true));
Is this even possible?
Thanks in advance
UPDATE:
Here is the simplified code I am trying to write:
ICriteria query = FluentSessionManager.GetSession().CreateCriteria<Orders>()
.AddOrder(new Order(????, true));
The joined table is OrdersLineItems. I need to set the order by the count of the line items. Since I am using paging with a data set that has over 500,000 records, simply pulling all the records into memory and then sorting them will not.
Thanks in advance.
ICriteria query = FluentSessionManager.GetSession().CreateCriteria<Orders>()
.CreateAlias("this.OrderLineItems", "oli")
.AddOrder(new Order(Projections.Count("oli.Id"), true));
Something like that I should think. It's probably not perfect but at least illustrates that you need to use Projections.Count to get it done.
I need to find a way to get the newly insert row, without previously having to save to the database.
Is there a way? Or I need to keep the whole collection of row in a separated array?
Is this example I adding a row to the table tblConfig, but when I look back in the table the new row is not there.
tblConfig Config = new tblConfig { ID = Guid.NewGuid(), Code ="new config code" };
CTX.tblConfig.InsertOnSubmit(Config);
var Data = from dd in CTX.tblConfig select dd;
this.dataGridView1.DataSource = Data;
After some research , I'll do the work by attaching my LINQ query to a BindingSource object, witch will help me handle with insertion update and so.
Thanks for everyone, for your help :)
Hugo
Could you add that manually like this?
this.dataGridView1.DataSource = CTX.tblConfig.Execute(MergeOption.AppendOnly);
I am trying to retrieve data from a simple mySql table tbl_u_type which has just two columns, 'tid' and 'type'.
I want to use a direct SQL query instead of the Model logic. I used:
$command = Yii::app()->db->createCommand();
$userArray = $command->select('type')->from('tbl_u_type')->queryAll();
return $userArray;
But in the dropdown list it automatically shows an index number along with the required entry. Is there any way I can avoid the index number?
To make an array of data usable in a dropdown, use the CHtml::listData() method. If I understand the question right, this should get you going. Something like this:
$command = Yii::app()->db->createCommand();
$userArray = $command->select('tid, type')->from('tbl_u_type')->queryAll();
echo CHtml::dropdownlist('my_dropdown','',CHtml::listData($userArray,'tid','type'));
You can also do this with the Model if you have one set up for the tbl_u_type table:
$users = UType::model()->findall();
echo CHtml::dropdownlist('my_dropdown','',CHtml::listData($users ,'tid','type'));
I hope that gets you on the right track. I didn't test my code here, as usual, so watch out for that. ;) Good luck!