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Cannot Load Query Data Could Not Find Condition

In our example, we did not have to do any extra processing, so we just emit() the final results: $reducer = function ($articles, $status, $mapReduce) { $mapReduce->emit($articles, $status); }; Finally, Modifying Results with Map/Reduce¶ More often than not, find operations require post-processing the data that is found in the database. This is useful when you want bucketed sets, or want to build elements with FormHelper: // In a controller or table method. $query = $articles->find('list', [ 'keyField' => 'slug', You need to ‘contain' or eager-load each association you want loaded in your results. his comment is here

Now let's reduce our results to only extract the count: $reducer = function ($occurrences, $word, $mapReduce) { $mapReduce->emit(count($occurrences), $word); } Finally, we put everything together: $articlesByStatus = $articles->find() ->where(['published' => true]) This function will change the query so that it filters results that have no relation to the specified association: // In a controller or table method. $query = $articlesTable ->find() ->notMatching('Tags', It is also possible to restrict deeply-nested associations using the dot notation: $query = $articles->find()->contain([ 'Comments', 'Authors.Profiles' => function ($q) { return $q->where(['Profiles.is_published' => true]); } ]); If you have defined By default results will be buffered in memory allowing you to iterate a result set multiple times, or cache and iterate the results. you could check here

This function will receive the list of articles in a particular "bucket" as the first parameter, the name of the "bucket" it needs to process as the second parameter, and again, You should refer to the Lazy Loading Associations and Loading Additional Associations sections for more information. The system returned: (22) Invalid argument The remote host or network may be down.

Now, let's take a look at another example in which the reducer function will be needed to do something more than just emitting the results. Your cache administrator is webmaster. Result sets allow you to cache/serialize or JSON encode results for API results: // In a controller or table method. $results = $query->all(); // Serialized $serialized = serialize($results); // Json $json Search Advanced search Home Information Download Addons News Support Forum Develop Get MediaMonkey Gold Board index FAQ Search Register Login Information The requested topic does not exist.

Retrieving Associated Data¶ When you want to grab associated data, or filter based on associated data, there are two ways: use CakePHP ORM query functions like contain() and matching() You can achieve that by using the finder option: $article = $articles->get($id, [ 'finder' => 'translations', ]); Using Finders to Load Data¶ Cake\ORM\Table::find($type, $options =[])¶ Before you can work with Using custom finder methods will let you re-use your queries and make testing easier. Posts [ 2 ] Pages 1 You must login or register to post a reply IT HELPER »windows xp »MediaMonkey Error: Cannot load query data: Could not find condition ID Jump

The queries generated by eager loading can better leverage joins, allowing more efficient queries to be made. Generated Tue, 08 Nov 2016 17:53:20 GMT by s_fl369 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection For more details on the matching(), look at Filtering by Associated Data. You can use the displayField() method on a table object to configure the display field of a table: class ArticlesTable extends Table { public function initialize(array $config) { $this->displayField('title'); }

foreach ($query as $row) { } // Calling all() will execute the query // and return the result set. $results = $query->all(); // Once we have a result set we can http://arnulfogzduclo.tk/Classifiers_In_Data/Define-Dirty-Data/Cannot-Load-Query-Data-Could-Not-Find-Condition Each word will create its own bucket where each article id will be stored. Generated Tue, 08 Nov 2016 17:53:20 GMT by s_fl369 (squid/3.5.20) You can also use page to make the calculation simpler. contain define the associations to eager load. fields limit the fields loaded into the entity.

You can load nested associations using nested arrays to define the associations to be loaded: $query = $articles->find()->contain([ 'Authors' => ['Addresses'], 'Comments' => ['Authors'] ]); Alternatively, you can express nested associations this content While contain() will let you apply additional conditions to the loaded associations, you cannot constrain the primary model based on the associations. Custom Finder Methods¶ The examples above show how to use the built-in all and list finders. You should use Custom Finder Methods to encapsulate more complex queries.

For example, you want to load all the articles that have a specific tag on them. Imagine you have a friends table and you want to find "fake friends" in our database, or better said, people who do not follow each other. This might be the case, for example, when the same users comments more than once on a single article. http://culturahq.com/cannot-load/cannot-load-query-data-condition-id-209.html For example, if you wanted to get the first comment of an article as an association: $articles->hasOne('FirstComment', [ 'className' => 'Comments', 'foreignKey' => 'article_id' ]); In order to correctly fetch the

For example if you have ‘Articles belongsToMany Tags' you will probably want to find Articles that have the CakePHP tag. You will also not be able to iterate & cache the results. You can use the getOptions() method on a query object to retrieve the options used.

The request cannot be fulfilled by the server ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.9/ Connection to 0.0.0.9

CakePHP provides a simple to use method for generating ‘lists' of data: // In a controller or table method. $query = $articles->find('list'); $data = $query->toArray(); // Data now looks like $data Getting a Count of Results¶ Once you have created a query object, you can use the count() method to get a result count of that query: // In a controller If you need to modify the results after they have been fetched you should use a Modifying Results with Map/Reduce function to modify the results. For example, you can extract a list of unique tags on a collection of articles by running: // In a controller or table method. $articles = TableRegistry::get('Articles'); $query = $articles->find()->contain(['Tags']); $reducer

For this task we can use the mapReduce() function. Finding Key/Value Pairs¶ It is often useful to generate an associative array of data from your application's data. Last updated on Nov 07, 2016. check over here For those cases, the Query object offers the mapReduce() method, which is a way of processing results once they are fetched from the database.

If you want to make the strategy change permanent you can do: $articles->FirstComment->strategy('select'); Using the select strategy is also a great way of making associations with tables in another database, Fetching With The Subquery Strategy¶ As your tables grow in size, fetching associations from them can become slower, especially if you are querying big batches at once. In that case you should use an array passing foreignKey and queryBuilder: $query = $articles->find()->contain([ 'Authors' => [ 'foreignKey' => false, 'queryBuilder' => function ($q) { return $q->where(...); // Please login or register.

We need two callable functions the $mapper and the $reducer. If you need full control over the query that is generated, you can tell contain() to not append the foreignKey constraints to the generated query. Using innerJoinWith¶ Using the matching() function, as we saw already, will create an INNER JOIN with the specified association and will also load the fields into the result Note While dynamic finders make it simple to express queries, they come with some additional performance overhead.

However, it is possible and recommended that you implement your own finder methods. For example, you could find articles that have not been commented on by a certain user: $query = $articlesTable ->find() ->notMatching('Comments.Users', function ($q) { return $q->where(['username' => 'jose']); }); Since articles For example if we wanted to add a finder to our articles table for finding published articles we would do the following: use Cake\ORM\Query; use Cake\ORM\Table; class ArticlesTable extends Table { For example, if we wanted to have the most commonly used words for articles, but then filter it to only return words that were mentioned more than 20 times across all

Working with Result Sets¶ Once a query is executed with all(), you will get an instance of Cake\ORM\ResultSet. Eager Loading Associations¶ By default CakePHP does not load any associated data when using find(). This finder allows you to access data stored in an ‘adjacency list' style table. You can load additional associations using loadInto(): $articles = $this->Articles->find()->all(); $withMore = $this->Articles->loadInto($articles, ['Comments', 'Users']); You can eager load additional data into a single entity, or a collection of entities.


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