	Source Code Coverage
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Methods: 11

LOC: 230

Statements: 83

Source file

Statements

Methods

Total coverage

Set.php

96.4%

100.0%

96.8%

<?php
/**
 * Xyster Framework
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://www.opensource.org/licenses/bsd-license.php
 *
 * @category  Xyster
 * @package   Xyster_Data
 * @copyright Copyright (c) 2007-2008 Irrational Logic (http://irrationallogic.net)
 * @license   http://www.opensource.org/licenses/bsd-license.php New BSD License
 */
/**
 * @see Xyster_Collection_Set_Sortable
 */
require_once 'Xyster/Collection/Set/Sortable.php';
/**
 * @see Xyster_Collection_Set
 */
require_once 'Xyster/Collection/Set.php';
/**
 * A set that holds rows and columns
 *
 * @category  Xyster
 * @package   Xyster_Data
 * @copyright Copyright (c) 2007-2008 Irrational Logic (http://irrationallogic.net)
 * @license   http://www.opensource.org/licenses/bsd-license.php New BSD License
 */
class Xyster_Data_Set extends Xyster_Collection_Set_Sortable
{
    /**
     * @var Xyster_Collection_Set
     */
    protected $_columns;

    /**
     * Creates a new data set
     *
     * @param Xyster_Collection_Interface $values The values to add
     */
    public function __construct( Xyster_Collection_Interface $values = null )
    {
        $this->_columns = new Xyster_Collection_Set();

        if ( $values instanceof Xyster_Collection_Interface ) {
            if ( !count($this->_columns) && count($values) ) {
                $first = $values->getIterator()->current();
                if ( !is_array($first) && !is_object($first) ) {
                    require_once 'Xyster/Data/Set/Exception.php';
                    throw new Xyster_Data_Set_Exception('This set can only contain arrays or objects');
                }
                $this->_createColumnsFromItem($first);
            }
            $this->merge($values);
        }
    }

    /**
     * Adds an item to the set
     *
     * This collection doesn't accept duplicate values, and will return false
     * if the provided value is already in the collection.
     *
     * It can only accept arrays or objects as items, otherwise it will throw a
     * Xyster_Data_Set_Exception.
     *
     * @param mixed $item The item to add
     * @return boolean Whether the set changed as a result of this method
     * @throws Xyster_Data_Set_Exception if the collection cannot contain the value
     */
    public function add( $item )
    {
        if ( !is_array($item) && !is_object($item) ) {
            require_once 'Xyster/Data/Set/Exception.php';
            throw new Xyster_Data_Set_Exception('This set can only contain arrays or objects');
        }
        if ( !count($this->_columns) ) {
            $this->_createColumnsFromItem($item);
        }
        return parent::add($item);
    }
    /**
     * Adds a column to the set
     *
     * @param string $column The name of the column
     * @throws Xyster_Data_Set_Exception if the method is called after the set contains items
     */
    public function addColumn( $column )
    {
        if ( count($this->_items) ) {
            require_once 'Xyster/Data/Set/Exception.php';
            throw new Xyster_Data_Set_Exception('Columns cannot be added once items have been added');
        }
        $this->_columns->add(Xyster_Data_Field::named($column));
    }
    /**
     * Perform an aggregate function on a column
     *
     * @param Xyster_Data_Aggregate $function
     * @param Xyster_Data_Field|string $field
     * @return mixed
     */
    public function aggregate( Xyster_Data_Field_Aggregate $field )
    {
        $function = $field->getFunction();
        switch( strtoupper($function->getValue()) ) {
            case "MAX":
                $value = max($this->fetchColumn($field));
                break;
            case "MIN":
                $value = min($this->fetchColumn($field));
                break;
            case "SUM":
                $value = array_sum($this->fetchColumn($field));
                break;
            case "AVG":
                $value = array_sum($this->fetchColumn($field))/count($this->_items);
                break;
            case "COUNT":
            default:
                $value = count($this->_items);
        }
        return $value;
    }
    /**
     * Converts an entire column of values to an array
     *
     * @param mixed $field A {@link Xyster_Data_Field} or the name of the field to fetch
     * @return array The fetched values from the column
     */
    public function fetchColumn( $field )
    {
        if (! $field instanceof Xyster_Data_Field ) {
            $field = Xyster_Data_Field::named($field);
        }
        $values = array();
        foreach( $this->_items as $v ) {
            $values[] = $field->evaluate($v);
        }
        return $values;
    }
    /**
     * Returns the first column of the first row of a statement
     *
     * @return mixed The value of the first column in the first row
     */
    public function fetchOne()
    {
        $value = null;
        if ( $item = current($this->_items) ) {
            $value = current((array) $item);
        }
        return $value;
    }
    /**
     * Converts 2 fields into an associative array
     *
     * @param mixed $key A {@link Xyster_Data_Field} or the name of the field to fetch
     * @param mixed $value A {@link Xyster_Data_Field} or the name of the field to fetch
     * @return array The translated fields
     */
    public function fetchPairs( $key, $value )
    {
        $field1 = (! $key instanceof Xyster_Data_Field) ?
            Xyster_Data_Field::named($key) : $key;
        $field2 = (! $value instanceof Xyster_Data_Field) ?
            Xyster_Data_Field::named($value) : $value;
        $pairs = array();
        foreach( $this->_items as $v ) {
            $pairs[ $field1->evaluate($v) ] = $field2->evaluate($v);
        }
        return $pairs;
    }
    /**
     * Removes elements in the collection based on a criteria
     *
     * @param Xyster_Data_Criterion $criteria The criteria for filtering
     */
    public function filter( Xyster_Data_Criterion $criteria )
    {
        $this->_items = array_values(array_filter($this->_items, array($criteria, 'evaluate')));
    }
    /**
     * Gets the columns that have been added to the set
     *
     * @return Xyster_Collection_Set
     */
    public function getColumns()
    {
        return Xyster_Collection::fixedSet($this->_columns);
    }
    /**
     * Sorts the collection by one or more columns and directions
     *
     * The $sorts parameter can either be a single {@link Xyster_Data_Sort} or
     * an array containing multiple.
     *
     * @param mixed $sorts The sorts to include
     */
    public function sortBy( $sorts )
    {
        if ( !is_array($sorts) ) {
            $sorts = array($sorts);
        }

        foreach( $sorts as $v ) {
            if (! $v instanceof Xyster_Data_Sort ) {
                require_once 'Xyster/Data/Set/Exception.php';
                throw new Xyster_Data_Set_Exception('The argument must be one or more Xyster_Data_Sort objects');
            }
        }

        require_once 'Xyster/Data/Comparator.php';
        $this->sort( new Xyster_Data_Comparator($sorts) );
    }

    /**
     * Creates the columns for this set from an array or object
     *
     * @param mixed $item either an array or an object
     */
    protected function _createColumnsFromItem( $item )
    {
        foreach( $item as $k => $v ) {
            $this->addColumn($k);
        }
    }
}

Report generated at 2008-01-20T12:13:39-05:00

1		<?php
2		/**
3		* Xyster Framework
4		*
5		* This source file is subject to the new BSD license that is bundled
6		* with this package in the file LICENSE.txt.
7		* It is also available through the world-wide-web at this URL:
8		* http://www.opensource.org/licenses/bsd-license.php
9		*
10		* @category Xyster
11		* @package Xyster_Data
12		* @copyright Copyright (c) 2007-2008 Irrational Logic (http://irrationallogic.net)
13		* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
14		*/
15		/**
16		* @see Xyster_Collection_Set_Sortable
17		*/
18	1	require_once 'Xyster/Collection/Set/Sortable.php';
19		/**
20		* @see Xyster_Collection_Set
21		*/
22	1	require_once 'Xyster/Collection/Set.php';
23		/**
24		* A set that holds rows and columns
25		*
26		* @category Xyster
27		* @package Xyster_Data
28		* @copyright Copyright (c) 2007-2008 Irrational Logic (http://irrationallogic.net)
29		* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
30		*/
31		class Xyster_Data_Set extends Xyster_Collection_Set_Sortable
32		{
33		/**
34		* @var Xyster_Collection_Set
35		*/
36		protected $_columns;
37
38		/**
39		* Creates a new data set
40		*
41		* @param Xyster_Collection_Interface $values The values to add
42		*/
43		public function __construct( Xyster_Collection_Interface $values = null )
44		{
45	293	$this->_columns = new Xyster_Collection_Set();
46
47	293	if ( $values instanceof Xyster_Collection_Interface ) {
48	35	if ( !count($this->_columns) && count($values) ) {
49	35	$first = $values->getIterator()->current();
50	35	if ( !is_array($first) && !is_object($first) ) {
51	2	require_once 'Xyster/Data/Set/Exception.php';
52	2	throw new Xyster_Data_Set_Exception('This set can only contain arrays or objects');
53		}
54	33	$this->_createColumnsFromItem($first);
55	33	}
56	33	$this->merge($values);
57	33	}
58		}
59
60		/**
61		* Adds an item to the set
62		*
63		* This collection doesn't accept duplicate values, and will return false
64		* if the provided value is already in the collection.
65		*
66		* It can only accept arrays or objects as items, otherwise it will throw a
67		* Xyster_Data_Set_Exception.
68		*
69		* @param mixed $item The item to add
70		* @return boolean Whether the set changed as a result of this method
71		* @throws Xyster_Data_Set_Exception if the collection cannot contain the value
72		*/
73		public function add( $item )
74		{
75	130	if ( !is_array($item) && !is_object($item) ) {
76	2	require_once 'Xyster/Data/Set/Exception.php';
77	2	throw new Xyster_Data_Set_Exception('This set can only contain arrays or objects');
78	0	}
79	128	if ( !count($this->_columns) ) {
80	126	$this->_createColumnsFromItem($item);
81	126	}
82	128	return parent::add($item);
83		}
84		/**
85		* Adds a column to the set
86		*
87		* @param string $column The name of the column
88		* @throws Xyster_Data_Set_Exception if the method is called after the set contains items
89		*/
90		public function addColumn( $column )
91		{
92	68	if ( count($this->_items) ) {
93	2	require_once 'Xyster/Data/Set/Exception.php';
94	2	throw new Xyster_Data_Set_Exception('Columns cannot be added once items have been added');
95	0	}
96	68	$this->_columns->add(Xyster_Data_Field::named($column));
97		}
98		/**
99		* Perform an aggregate function on a column
100		*
101		* @param Xyster_Data_Aggregate $function
102		* @param Xyster_Data_Field\|string $field
103		* @return mixed
104		*/
105		public function aggregate( Xyster_Data_Field_Aggregate $field )
106		{
107	16	$function = $field->getFunction();
108	16	switch( strtoupper($function->getValue()) ) {
109	16	case "MAX":
110	5	$value = max($this->fetchColumn($field));
111	5	break;
112	12	case "MIN":
113	2	$value = min($this->fetchColumn($field));
114	2	break;
115	10	case "SUM":
116	2	$value = array_sum($this->fetchColumn($field));
117	2	break;
118	8	case "AVG":
119	2	$value = array_sum($this->fetchColumn($field))/count($this->_items);
120	2	break;
121	6	case "COUNT":
122	6	default:
123	6	$value = count($this->_items);
124	6	}
125	16	return $value;
126		}
127		/**
128		* Converts an entire column of values to an array
129		*
130		* @param mixed $field A {@link Xyster_Data_Field} or the name of the field to fetch
131		* @return array The fetched values from the column
132		*/
133		public function fetchColumn( $field )
134		{
135	15	if (! $field instanceof Xyster_Data_Field ) {
136	2	$field = Xyster_Data_Field::named($field);
137	2	}
138	15	$values = array();
139	15	foreach( $this->_items as $v ) {
140	15	$values[] = $field->evaluate($v);
141	15	}
142	15	return $values;
143		}
144		/**
145		* Returns the first column of the first row of a statement
146		*
147		* @return mixed The value of the first column in the first row
148		*/
149		public function fetchOne()
150		{
151	2	$value = null;
152	2	if ( $item = current($this->_items) ) {
153	2	$value = current((array) $item);
154	2	}
155	2	return $value;
156		}
157		/**
158		* Converts 2 fields into an associative array
159		*
160		* @param mixed $key A {@link Xyster_Data_Field} or the name of the field to fetch
161		* @param mixed $value A {@link Xyster_Data_Field} or the name of the field to fetch
162		* @return array The translated fields
163		*/
164		public function fetchPairs( $key, $value )
165		{
166	4	$field1 = (! $key instanceof Xyster_Data_Field) ?
167	4	Xyster_Data_Field::named($key) : $key;
168	4	$field2 = (! $value instanceof Xyster_Data_Field) ?
169	4	Xyster_Data_Field::named($value) : $value;
170	4	$pairs = array();
171	4	foreach( $this->_items as $v ) {
172	4	$pairs[ $field1->evaluate($v) ] = $field2->evaluate($v);
173	4	}
174	4	return $pairs;
175		}
176		/**
177		* Removes elements in the collection based on a criteria
178		*
179		* @param Xyster_Data_Criterion $criteria The criteria for filtering
180		*/
181		public function filter( Xyster_Data_Criterion $criteria )
182		{
183	16	$this->_items = array_values(array_filter($this->_items, array($criteria, 'evaluate')));
184		}
185		/**
186		* Gets the columns that have been added to the set
187		*
188		* @return Xyster_Collection_Set
189		*/
190		public function getColumns()
191		{
192	4	return Xyster_Collection::fixedSet($this->_columns);
193		}
194		/**
195		* Sorts the collection by one or more columns and directions
196		*
197		* The $sorts parameter can either be a single {@link Xyster_Data_Sort} or
198		* an array containing multiple.
199		*
200		* @param mixed $sorts The sorts to include
201		*/
202		public function sortBy( $sorts )
203		{
204	7	if ( !is_array($sorts) ) {
205	4	$sorts = array($sorts);
206	4	}
207
208	7	foreach( $sorts as $v ) {
209	7	if (! $v instanceof Xyster_Data_Sort ) {
210	2	require_once 'Xyster/Data/Set/Exception.php';
211	2	throw new Xyster_Data_Set_Exception('The argument must be one or more Xyster_Data_Sort objects');
212	0	}
213	5	}
214
215	5	require_once 'Xyster/Data/Comparator.php';
216	5	$this->sort( new Xyster_Data_Comparator($sorts) );
217		}
218
219		/**
220		* Creates the columns for this set from an array or object
221		*
222		* @param mixed $item either an array or an object
223		*/
224		protected function _createColumnsFromItem( $item )
225		{
226	128	foreach( $item as $k => $v ) {
227	62	$this->addColumn($k);
228	62	}
229		}
230		}

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