PrimaryKey::handleDuplicateHash() - Code Metrics - Inspection of "Increased unit test coverage to include primary ke..." - FootworkSolutions/json_table - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 46473c...5fda7a )

by George

created 2016-04-18 16:03 UTC

PrimaryKey::handleDuplicateHash() A

↳ Parent: PrimaryKey

Complexity

Conditions	1
Paths	1

Size

Total Lines	9
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	1

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
c	2
b	0
f	0
dl	0
loc	9
ccs	6
cts	6
cp	1
rs	9.6666
cc	1
eloc	6
nc	1
nop	1
crap	1

<?php
namespace JsonTable\Analyse;

/**
 * Perform primary key analysis.
 *
 * @package JsonTable
 */
class PrimaryKey extends Analyse implements AnalyseInterface
{
    /**
     * @var string The description for fields with duplicated primary keys.
     */
    const ERROR_DUPLICATE_PRIMARY_KEY = 'There are <strong>%d</strong> rows that have duplicated primary keys:';

    /**
     * @var array   The current CSV row being analysed.
     */
    private $currentCsvRow;

    /**
     * @var int The position of the current CSV row row in the CSV file.
     */
    private $rowNumber;

    /**
     * @var array   The primary keys for every row in the file.
     */
    private $fileKeys;

    /**
     * @var array   The primary key parts for the current row.
     */
    private $rowKeyParts;

    /**
     * @var array   The primary key fields.
     */
    private $primaryKeyFields;

    /**
     * @var string  The name of the primary key field currently being analysed.
     */
    private $primaryKeyFieldName;

    /**
     * @var string  The hash of the data taken from the primary key fields in the current CSV row.
     */
    private $hash;


    /**
     * Validate that any specified primary key constraints have been met.
     *
     * @return  boolean Does the data meet the primary key constraints.
     *
     *
     */
    public function validate()
    {
        if (false === property_exists(parent::$schemaJson, 'primaryKey')) {
            return true;
        }

        $this->setPrimaryKeyFields();
        $this->fileKeys = [];

        self::rewindFilePointerToFirstData();

        $this->rowNumber= 1;

        while ($currentCsvRow = parent::loopThroughFileRows()) {
            $this->currentCsvRow = $currentCsvRow;
            $this->getPrimaryKeyDataForRow();
            $this->createHash();

            if ($existingKey = $this->isHashUnique()) {
                $this->handleDuplicateHash($existingKey);

                if ($this->stopIfInvalid) {
                    return false;
                }
            }

            $this->fileKeys[$this->rowNumber] = $this->hash;
            $this->rowNumber++;
        }

        return true;
    }


    /**
     * Set the primary key fields.
     *
     * @return  void
     */
    private function setPrimaryKeyFields()
    {
        $this->primaryKeyFields = (array) parent::$schemaJson->primaryKey;
    }


    /**
     * Check that there is a column in the JSON table schema file for the current primary key field.
     *
     * @return  void
     *
     * @throws  \Exception if the primary key was not in the schema file.
     */
    private function checkColumnExistsInSchema()
    {
        if (false === $this->getSchemaKeyFromName($this->primaryKeyFieldName)) {
            throw new \Exception("The primary key &quot;$this->primaryKeyFieldName&quot; was not in the file.
                    Primary key columns should be set as required.");
        }
    }


    /**
     * Get the data in the CSV column for the current primary key column.
     *
     * @return  string  The data in the column.
     */
    private function csvDataForPrimaryKeyColumn()
    {
        $csvPosition = $this->getCsvPositionFromName($this->primaryKeyFieldName);
        return $this->currentCsvRow[$csvPosition];
    }


    /**
     * Get the data in the primary key columns for the current CSV row.
     *
     * @return  void
     */
    private function getPrimaryKeyDataForRow()
    {
        $this->rowKeyParts = [];

        foreach ($this->primaryKeyFields as $fieldName) {
            $this->primaryKeyFieldName = strtolower($fieldName);
            $this->checkColumnExistsInSchema();
            $this->rowKeyParts[] = $this->csvDataForPrimaryKeyColumn();
        }
    }


    /**
     * Create a hash of the data taken from the primary key fields in the current CSV row.
     *
     * @return  void
     */
    private function createHash()
    {
        $this->hash = implode(', ', $this->rowKeyParts);
    }


    /**
     * Check whether the current hash has already been created for this file.
     *
     * @return  boolean|int False if this row's primary key hash is unique
     *                      or the number of the row with the same hash if it's not.
     */
    private function isHashUnique()
    {
        return array_search($this->hash, $this->fileKeys);
    }


    /**
     * Handle the current hash not being unique.
     *
     * @param   int $existingKey    The number of the row with the same hash.
     *
     * @return  void
     */
    private function handleDuplicateHash($existingKey)
    {
        $primaryKeyColumns = implode(', ', $this->primaryKeyFields);
        $errorMessage = "The data in columns &quot;$primaryKeyColumns&quot; should be unique,
                but rows $existingKey &amp; $this->rowNumber have the same values of &quot;$this->hash&quot;";

        $this->error->setError(self::ERROR_DUPLICATE_PRIMARY_KEY, $errorMessage);
        $this->statistics->setErrorRow($this->rowNumber);
    }
}

1		<?php
2		namespace JsonTable\Analyse;
3
4		/**
5		* Perform primary key analysis.
6		*
7		* @package JsonTable
8		*/
9		class PrimaryKey extends Analyse implements AnalyseInterface
10		{
11		/**
12		* @var string The description for fields with duplicated primary keys.
13		*/
14		const ERROR_DUPLICATE_PRIMARY_KEY = 'There are <strong>%d</strong> rows that have duplicated primary keys:';
15
16		/**
17		* @var array The current CSV row being analysed.
18		*/
19		private $currentCsvRow;
20
21		/**
22		* @var int The position of the current CSV row row in the CSV file.
23		*/
24		private $rowNumber;
25
26		/**
27		* @var array The primary keys for every row in the file.
28		*/
29		private $fileKeys;
30
31		/**
32		* @var array The primary key parts for the current row.
33		*/
34		private $rowKeyParts;
35
36		/**
37		* @var array The primary key fields.
38		*/
39		private $primaryKeyFields;
40
41		/**
42		* @var string The name of the primary key field currently being analysed.
43		*/
44		private $primaryKeyFieldName;
45
46		/**
47		* @var string The hash of the data taken from the primary key fields in the current CSV row.
48		*/
49		private $hash;
50
51
52		/**
53		* Validate that any specified primary key constraints have been met.
54		*
55		* @return boolean Does the data meet the primary key constraints.
56		*
57		*
58		*/
59	74	public function validate()
60		{
61	74	if (false === property_exists(parent::$schemaJson, 'primaryKey')) {
62	1	return true;
63		}
64
65	73	$this->setPrimaryKeyFields();
66	73	$this->fileKeys = [];
67
68	73	self::rewindFilePointerToFirstData();
69
70	73	$this->rowNumber= 1;
71
72	73	while ($currentCsvRow = parent::loopThroughFileRows()) {
73	73	$this->currentCsvRow = $currentCsvRow;
74	73	$this->getPrimaryKeyDataForRow();
75	73	$this->createHash();
76
77	73	if ($existingKey = $this->isHashUnique()) {
78	1	$this->handleDuplicateHash($existingKey);
79
80	1	if ($this->stopIfInvalid) {
81		return false;
82		}
83	1	}
84
85	73	$this->fileKeys[$this->rowNumber] = $this->hash;
86	73	$this->rowNumber++;
87	73	}
88
89	73	return true;
90		}
91
92
93		/**
94		* Set the primary key fields.
95		*
96		* @return void
97		*/
98	73	private function setPrimaryKeyFields()
99		{
100	73	$this->primaryKeyFields = (array) parent::$schemaJson->primaryKey;
101	73	}
102
103
104		/**
105		* Check that there is a column in the JSON table schema file for the current primary key field.
106		*
107		* @return void
108		*
109		* @throws \Exception if the primary key was not in the schema file.
110		*/
111	73	private function checkColumnExistsInSchema()
112		{
113	73	if (false === $this->getSchemaKeyFromName($this->primaryKeyFieldName)) {
114		throw new \Exception("The primary key "$this->primaryKeyFieldName" was not in the file.
115		Primary key columns should be set as required.");
116		}
117	73	}
118
119
120		/**
121		* Get the data in the CSV column for the current primary key column.
122		*
123		* @return string The data in the column.
124		*/
125	73	private function csvDataForPrimaryKeyColumn()
126		{
127	73	$csvPosition = $this->getCsvPositionFromName($this->primaryKeyFieldName);
128	73	return $this->currentCsvRow[$csvPosition];
129		}
130
131
132		/**
133		* Get the data in the primary key columns for the current CSV row.
134		*
135		* @return void
136		*/
137	73	private function getPrimaryKeyDataForRow()
138		{
139	73	$this->rowKeyParts = [];
140
141	73	foreach ($this->primaryKeyFields as $fieldName) {
142	73	$this->primaryKeyFieldName = strtolower($fieldName);
143	73	$this->checkColumnExistsInSchema();
144	73	$this->rowKeyParts[] = $this->csvDataForPrimaryKeyColumn();
145	73	}
146	73	}
147
148
149		/**
150		* Create a hash of the data taken from the primary key fields in the current CSV row.
151		*
152		* @return void
153		*/
154	73	private function createHash()
155		{
156	73	$this->hash = implode(', ', $this->rowKeyParts);
157	73	}
158
159
160		/**
161		* Check whether the current hash has already been created for this file.
162		*
163		* @return boolean\|int False if this row's primary key hash is unique
164		* or the number of the row with the same hash if it's not.
165		*/
166	73	private function isHashUnique()
167		{
168	73	return array_search($this->hash, $this->fileKeys);
169		}
170
171
172		/**
173		* Handle the current hash not being unique.
174		*
175		* @param int $existingKey The number of the row with the same hash.
176		*
177		* @return void
178		*/
179	1	private function handleDuplicateHash($existingKey)
180		{
181	1	$primaryKeyColumns = implode(', ', $this->primaryKeyFields);
182		$errorMessage = "The data in columns "$primaryKeyColumns" should be unique,
183	1	but rows $existingKey & $this->rowNumber have the same values of "$this->hash"";
184
185	1	$this->error->setError(self::ERROR_DUPLICATE_PRIMARY_KEY, $errorMessage);
186	1	$this->statistics->setErrorRow($this->rowNumber);
187		}
188		}

FootworkSolutions / json_table

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PrimaryKey::handleDuplicateHash() A

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