Collection::select()   A
last analyzed

Complexity

Conditions 2
Paths 2

Size

Total Lines 8
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 2
eloc 5
nc 2
nop 1
dl 0
loc 8
rs 9.4285
c 0
b 0
f 0
1
<?php
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namespace DominionEnterprises\Api;
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use DominionEnterprises\Util;
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/**
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 * Class for iterating index responses. Collections are readonly
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 */
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final class Collection implements \Iterator, \Countable
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{
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    /**
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     * API Client
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     *
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     * @var Client
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     */
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    private $_client;
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    /**
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     * limit to give to API
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     *
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     * @var int
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     */
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    private $_limit;
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    /**
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     * offset to give to API
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     *
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     * @var int
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     */
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    private $_offset;
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    /**
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     * resource name for collection
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     *
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     * @var string
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     */
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    private $_resource;
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    /**
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     * array of filters to pass to API
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     *
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     * @var array
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     */
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    private $_filters;
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    /**
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     * Total number of elements in the collection
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     *
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     * @var int
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     */
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    private $_total;
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    /**
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     * pointer in the paginated results
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     *
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     * @var int
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     */
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    private $_position;
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    /**
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     * A paginated set of elements from the API
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     *
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     * @var array
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     */
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    private $_result;
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    /**
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     * Create a new collection
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     *
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     * @param Client $client client connection to the API
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     * @param string $resource name of API resource to request
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     * @param array $filters key value pair array of search filters
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     */
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    public function __construct(Client $client, $resource, array $filters = [])
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    {
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        Util::throwIfNotType(['string' => [$resource]], true);
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        $this->_client = $client;
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        $this->_resource = $resource;
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        $this->_filters = $filters;
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        $this->rewind();
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    }
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    /**
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     * @see Countable::count()
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     *
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     * @return int
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     */
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    public function count()
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    {
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        if ($this->_position === -1) {
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            $this->next();
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        }
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        return $this->_total;
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    }
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    /**
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     * @see Iterator::rewind()
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     *
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     * @return void
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     */
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    public function rewind()
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    {
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        $this->_result = null;
0 ignored issues
show
Documentation Bug introduced by
It seems like null of type null is incompatible with the declared type array of property $_result.

Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.

Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..

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        $this->_offset = 0;
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        $this->_total = 0;
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        $this->_limit = 0;
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        $this->_position = -1;
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    }
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    /**
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     * @see Iterator::key()
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     *
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     * @return int
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     */
117 View Code Duplication
    public function key()
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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    {
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        if ($this->_position === -1) {
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            $this->next();
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        }
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        Util::ensure(false, empty($this->_result), '\OutOfBoundsException', ['Collection contains no elements']);
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        return $this->_offset + $this->_position;
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    }
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    /**
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     * @see Iterator::valid()
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     *
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     * @return bool
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     */
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    public function valid()
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    {
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        if ($this->_position === -1) {
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            $this->next();
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        }
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        return $this->_offset + $this->_position < $this->_total;
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    }
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    /**
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     * @see Iterator::next()
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     *
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     * @return void
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     */
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    public function next()
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    {
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        ++$this->_position;
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        if ($this->_position < $this->_limit) {
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            return;
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        }
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        $this->_offset += $this->_limit;
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        $this->_filters['offset'] = $this->_offset;
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        $indexResponse = $this->_client->index($this->_resource, $this->_filters);
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        $httpCode = $indexResponse->getHttpCode();
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        Util::ensure(200, $httpCode, "Did not receive 200 from API. Instead received {$httpCode}");
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        $response = $indexResponse->getResponse();
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        $this->_limit = $response['pagination']['limit'];
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        $this->_total = $response['pagination']['total'];
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        $this->_result = $response['result'];
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        $this->_position = 0;
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    }
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    /**
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     * @see Iterator::current()
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     *
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     * @return array
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     */
174 View Code Duplication
    public function current()
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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    {
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        if ($this->_position === -1) {
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            $this->next();
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        }
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        Util::ensure(
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            true,
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            array_key_exists($this->_position, $this->_result),
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            '\OutOfBoundsException',
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            ['Collection contains no element at current position']
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        );
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        return $this->_result[$this->_position];
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    }
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    /**
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     * Returns the values from a single field this collection, identified by the given $key.
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     *
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     * @param string $key The name of the field for which the values will be returned.
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     *
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     * @return iterable
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     */
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    public function column($key)
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    {
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        foreach ($this as $item) {
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            yield Util\Arrays::get($item, $key);
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        }
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    }
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    /**
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     * Return an iterable generator containing only the fields specified in the $keys array.
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     *
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     * @param array $keys The list of field names to be returned.
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     *
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     * @return \Generator
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     */
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    public function select(array $keys)
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    {
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        foreach ($this as $item) {
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            $result = array_fill_keys($keys, null);
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            Util\Arrays::copyIfKeysExist($item, $result, $keys);
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            yield  $result;
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        }
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    }
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}
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