DBPreparedQuery::isBindable() - Code Metrics - Asymptix/Framework - Measure and Improve Code Quality continuously with Scrutinizer

DBPreparedQuery::isBindable() A
last analyzed 2018-07-31 14:35 UTC

↳ Parent: DBPreparedQuery

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
nc	2
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php

namespace Asymptix\db;

use Asymptix\core\Tools;

/**
 * Complex DB query object for Prepared Statement.
 *
 * @category Asymptix PHP Framework
 * @author Dmytro Zarezenko <[email protected]>
 * @copyright (c) 2015 - 2016, Dmytro Zarezenko
 *
 * @git https://github.com/Asymptix/Framework
 * @license http://opensource.org/licenses/MIT
 */
class DBPreparedQuery extends DBQuery {

    /**
     * DB query template.
     *
     * @var string
     */
    public $query = "";

    /**
     * Parameters SQL types string ("idsb").
     *
     * @var string
     */
    public $types = "";

    /**
     * List of the DB SQL query parameters.
     *
     * @var array
     */
    public $params = [];

    /**
     * Creates and initialize DBPreparedQuery object.
     *
     * @param string $query DB SQL query template.
     * @param string $types Parameters SQL types string ("idsb").
     * @param array $params List of the DB SQL query parameters.
     */
    public function __construct($query = "", $types = "", $params = []) {
        $this->query = $query;
        $this->types = str_replace(["|"], "", $types);
        $this->params = $params;

        if (!empty($this->query)) {
            $this->type = $this->detectType();
        }
        parent::__construct($this->type);
    }

    /**
     * Verify if current DBPreparedQuery is have parameters for binding.
     *
     * @return bool
     */
    public function isBindable() {
        return ($this->params != null && count($this->params) > 0);
    }

    /**
     * Verify if current DBPreparedQuery is valid for the execution.
     *
     * @return bool
     */
    public function isValid() {
        self::checkParameterTypes($this->params, $this->types);

        return true;
    }

    /**
     * Adds conditions WHERE SQL string to the SQL query.
     */
    public function prepareConditions() {
        if (!empty($this->conditions)) {
            $this->query.= " WHERE ";
            $this->sqlPushValues($this->conditions, " AND ");
        }
    }

    /**
     * Adds ORDER SQL string to the SQL query.
     */
    public function prepareOrder() {
        if (!empty($this->order)) {
            $this->query.= " ORDER BY";
            if (is_array($this->order)) {
                foreach ($this->order as $fieldName => $ord) {
                    $this->query.= " " . $fieldName . " " . $ord . ",";
                }
                $this->query = substr($this->query, 0, strlen($this->query) - 1);
            } elseif (is_string($this->order)) {
                $this->query.= " " . $this->order;
            }
        }
    }

    /**
     * Adds LIMIT SQL string to the SQL query.
     *
     * @return mixed Number of records will be selected or null.
     * @throws DBCoreException If some error occurred.
     */
    public function prepareLimit() {
        $count = null;
        if (!is_null($this->limit)) {
            if (Tools::isInteger($this->limit)) {
                $this->query.= " LIMIT " . $this->limit;
                $count = $this->limit;
            } elseif (is_array($this->limit) && count($this->limit) == 2) {
                $offset = $this->limit[0];
                $count = $this->limit[1];
                if (Tools::isInteger($offset) && Tools::isInteger($count)) {
                    $this->query.= " LIMIT " . $offset . ", " . $count;
                } else {
                    throw new DBCoreException("Invalid LIMIT param in select() method.");
                }
            } else {
                throw new DBCoreException("Invalid LIMIT param in select() method.");
            }
        }

        return $count;
    }

    /**
     * Prepares SQL query to the execution.
     *
     * @param string $query Initial SQL query string.
     * @param array $conditions Conditions list.
     * @param array $order List of order conditions (fieldName => order),
     *           order may be 'ASC' OR 'DESC'.
     * @param int $offset Limit offset value (or count if this is single
     *           parameter).
     * @param int $count Number of records to select.
     *
     * @return DBPreparedQuery Oneself after modifications.
     * @throws DBCoreException If some error occurred.
     */
    public function prepare($query, $conditions = null, $order = null, $offset = null, $count = null) {
        if (empty($query)) {
            throw new DBCoreException("Nothing to run, SQL query is not initialized");
        }
        $this->query = $query;

        if (!is_null($conditions)) {
            if (!is_array($conditions)) {
                throw new DBCoreException("Invalid conditions array");
            }
            $this->conditions = $conditions;
        }
        $this->prepareConditions();

        if (!is_null($order)) {
            $this->order = $order;
        }
        $this->prepareOrder();

        if (!is_null($offset)) {

            if (is_null($count)) {
                $this->dbQuery->limit = $offset;
class MyClass { }

$x = new MyClass();
$x->foo = true;
            } else {
                $this->dbQuery->limit = [$offset, $count];
            }
        }
        $this->prepareLimit();

        return $this;
    }

    /**
     * Executes SQL query.
     *
     * @param bool $debug Debug mode flag.
     *
     * @return mixed Statement object or FALSE if an error occurred if SELECT
     *           query executed or number of affected rows on success if other
     *           type of query executed.
     */
    public function go($debug = false) {
        if ($debug) {
            $this->debug();
        } else {
            if ($this->isSelector()) {
                return DBCore::doSelectQuery($this);
            }

            return DBCore::doUpdateQuery($this);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        }
    }

    /**
     * Shows debug information for the SQL query without execution.
     */
    public function debug() {
        self::showQueryDebugInfo($this->query, $this->types, $this->params);
    }

    /**
     * Checks query parameters types correspondence.
     *
     * @param array $params Parameters of the query.
     * @param string $types Types of the parameters ("idsb").
     *
     * @throws DBCoreException
     */
    private static function checkParameterTypes($params, $types) {
        if (count($params) != strlen($types)) {
            throw new DBCoreException(
                "Number of types is not equal parameters number"
            );
        }

        foreach ($params as $key => $value) {
            $type = $types[$key];

            if (!in_array($type, ['i', 'd', 's', 'b'])) {
                throw new DBCoreException(
                    "Invalid query parameters types string (type '" . $type .
                    "' is undefined, only 'i', 'd', 's' and 'b' types are acceptable)"
                );
            }

            $typeByValue = DBField::getType($value);
            if ($typeByValue != 's') {
                if ($type != $typeByValue && !(
                       ($type == 'd' && $typeByValue == 'i') || // We can put integer as double
                       ($type == 's' && $typeByValue == 'i') // We can put integer as string
                   )
                ) {
                    throw new DBCoreException(
                        "Invalid query parameters types string ('" . $value .
                        "' is not '" . $type . "' type but '" . $typeByValue . "' detected)"
                    );
                }
            } else { // in case if we try send non-string parameters as a string value
                switch ($type) {
                    case 'i':
                        if (!(Tools::isNumeric($value) && ((string)(int)$value === $value))) {
                            throw new DBCoreException(
                                "Invalid query parameters types string ('" . $value . "' is not '" . $type . ")"
                            );
                        }
                        break;
                    case 'd':
                        if (!Tools::isDoubleString($value)) {
                            throw new DBCoreException(
                                "Invalid query parameters types string ('" . $value . "' is not '" . $type . ")"
                            );
                        }
                        break;
                    case 'b':
                        if (!in_array(strtolower($value), ['true', 'false'])) {
                            throw new DBCoreException(
                                "Invalid query parameters types string ('" . $value . "' is not '" . $type . ")"
                            );
                        }
                        break;
                }
            }
        }
    }

    /**
     * Return qwestion marks string for IN(...) SQL construction.
     *
     * @param int $length Length of the result string.
     *
     * @return string
     */
    public static function sqlQMString($length) {
        return implode(",", array_fill(0, $length, "?"));
    }

    /**
     * Return fields and qwestion marks string for SET field1=?, ... SQL construction.
     *
     * @param array<mixed> $fieldsList List of the table fields (syntax: array[fieldName] = fieldValue)
     * @param string $idFieldName Name of the primary key field.
     *
     * @return string
     */
    public static function sqlQMValuesString($fieldsList, $idFieldName = "") {
        $chunks = [];
        foreach (array_keys($fieldsList) as $fieldName) {
            if ($fieldName != $idFieldName) {
                $chunks[] = "`" . $fieldName . "` = ?";
            }
        }

        return implode(", ", $chunks);
    }

    /**
     * Return fields and values string for SET field1=value1, ... SQL construction.
     *
     * @param array<mixed> $fieldsList List of the table fields (syntax: array[fieldName] = fieldValue)
     * @param string $idFieldName Name of the primary key field.
     *
     * @return string
     */
    public static function sqlValuesString($fieldsList, $idFieldName) {
        $chunks = [];
        foreach ($fieldsList as $fieldName => $fieldValue) {
            if ($fieldName != $idFieldName) {
                $chunks[]= "`" . $fieldName . "` = '" . $fieldValue . "'";
            }
        }

        return implode(", ", $chunks);
    }

    /**
     * Returns SQL types string.
     * Type specification chars:
     *    i - corresponding variable has type integer
     *    d - corresponding variable has type double
     *    s - corresponding variable has type string
     *    b - corresponding variable is a blob and will be sent in packets.
     *
     * @param array<mixed> $fieldsList List of the table fields (syntax: array[fieldName] = fieldValue)
     * @param string $idFieldName Name of the primary key field.
     * @return string
     */
    public static function sqlTypesString($fieldsList, $idFieldName = "") {
        $typesString = "";
        foreach ($fieldsList as $fieldName => $fieldValue) {
            if ($fieldName != $idFieldName) {
                if (Tools::isDouble($fieldValue)) {
                    $typesString.= "d";
                } elseif (Tools::isInteger($fieldValue)) {
                    $typesString.= "i";
                } else {
                    $typesString.= "s";
                }
            }
        }

        return $typesString;
    }

    /**
     * Returns SQL types string of single type.
     *
     * @param string $type SQL type.
     * @param int $length Length of the SQL types string.
     *
     * @return string
     * @throws DBFieldTypeException If invalid type passed.
     */
    public static function sqlSingleTypeString($type, $length) {
        $type = DBField::castType($type);
        $typesString = "";
        while ($length > 0) {
            $typesString.= $type;
            $length--;
        }

        return $typesString;
    }

    /**
     * Push values to the DBPreparedQuery SQL query field end.
     *
     * @param array $values List of pairs key => value or SQL query parts with
     *           parameters.
     * @param string $separator Join separator.
     */
    public function sqlPushValues($values, $separator = ", ") {
        $chunks = [];
        foreach ($values as $fieldName => $fieldValue) {
            if (!is_array($fieldValue)) {
                if (!is_null($fieldValue)) {
                    $chunks[] = $fieldName . " = ?";
                    $this->types.= DBField::getType($fieldValue);
                    $this->params[] = $fieldValue;
                } else {
                    $chunks[] = $fieldName;
                }
            } else {
                $condition = $fieldName;
                $localParams = $fieldValue;

                $chunks[] = $condition;
                foreach ($localParams as $param) {
                    $this->types.= DBField::getType($param);
                    $this->params[] = $param;
                }
            }
        }
        $this->query.= implode($separator, $chunks);
    }

}


1		<?php
2
3		namespace Asymptix\db;
4
5		use Asymptix\core\Tools;
6
7		/**
8		* Complex DB query object for Prepared Statement.
9		*
10		* @category Asymptix PHP Framework
11		* @author Dmytro Zarezenko <[email protected]>
12		* @copyright (c) 2015 - 2016, Dmytro Zarezenko
13		*
14		* @git https://github.com/Asymptix/Framework
15		* @license http://opensource.org/licenses/MIT
16		*/
17		class DBPreparedQuery extends DBQuery {
18
19		/**
20		* DB query template.
21		*
22		* @var string
23		*/
24		public $query = "";
25
26		/**
27		* Parameters SQL types string ("idsb").
28		*
29		* @var string
30		*/
31		public $types = "";
32
33		/**
34		* List of the DB SQL query parameters.
35		*
36		* @var array
37		*/
38		public $params = [];
39
40		/**
41		* Creates and initialize DBPreparedQuery object.
42		*
43		* @param string $query DB SQL query template.
44		* @param string $types Parameters SQL types string ("idsb").
45		* @param array $params List of the DB SQL query parameters.
46		*/
47		public function __construct($query = "", $types = "", $params = []) {
48		$this->query = $query;
49		$this->types = str_replace(["\|"], "", $types);
50		$this->params = $params;
51
52		if (!empty($this->query)) {
53		$this->type = $this->detectType();
54		}
55		parent::__construct($this->type);
56		}
57
58		/**
59		* Verify if current DBPreparedQuery is have parameters for binding.
60		*
61		* @return bool
62		*/
63		public function isBindable() {
64		return ($this->params != null && count($this->params) > 0);
65		}
66
67		/**
68		* Verify if current DBPreparedQuery is valid for the execution.
69		*
70		* @return bool
71		*/
72		public function isValid() {
73		self::checkParameterTypes($this->params, $this->types);
74
75		return true;
76		}
77
78		/**
79		* Adds conditions WHERE SQL string to the SQL query.
80		*/
81		public function prepareConditions() {
82		if (!empty($this->conditions)) {
83		$this->query.= " WHERE ";
84		$this->sqlPushValues($this->conditions, " AND ");
85		}
86		}
87
88		/**
89		* Adds ORDER SQL string to the SQL query.
90		*/
91		public function prepareOrder() {
92		if (!empty($this->order)) {
93		$this->query.= " ORDER BY";
94		if (is_array($this->order)) {
95		foreach ($this->order as $fieldName => $ord) {
96		$this->query.= " " . $fieldName . " " . $ord . ",";
97		}
98		$this->query = substr($this->query, 0, strlen($this->query) - 1);
99		} elseif (is_string($this->order)) {
100		$this->query.= " " . $this->order;
101		}
102		}
103		}
104
105		/**
106		* Adds LIMIT SQL string to the SQL query.
107		*
108		* @return mixed Number of records will be selected or null.
109		* @throws DBCoreException If some error occurred.
110		*/
111		public function prepareLimit() {
112		$count = null;
113		if (!is_null($this->limit)) {
114		if (Tools::isInteger($this->limit)) {
115		$this->query.= " LIMIT " . $this->limit;
116		$count = $this->limit;
117		} elseif (is_array($this->limit) && count($this->limit) == 2) {
118		$offset = $this->limit[0];
119		$count = $this->limit[1];
120		if (Tools::isInteger($offset) && Tools::isInteger($count)) {
121		$this->query.= " LIMIT " . $offset . ", " . $count;
122		} else {
123		throw new DBCoreException("Invalid LIMIT param in select() method.");
124		}
125		} else {
126		throw new DBCoreException("Invalid LIMIT param in select() method.");
127		}
128		}
129
130		return $count;
131		}
132
133		/**
134		* Prepares SQL query to the execution.
135		*
136		* @param string $query Initial SQL query string.
137		* @param array $conditions Conditions list.
138		* @param array $order List of order conditions (fieldName => order),
139		* order may be 'ASC' OR 'DESC'.
140		* @param int $offset Limit offset value (or count if this is single
141		* parameter).
142		* @param int $count Number of records to select.
143		*
144		* @return DBPreparedQuery Oneself after modifications.
145		* @throws DBCoreException If some error occurred.
146		*/
147		public function prepare($query, $conditions = null, $order = null, $offset = null, $count = null) {
148		if (empty($query)) {
149		throw new DBCoreException("Nothing to run, SQL query is not initialized");
150		}
151		$this->query = $query;
152
153		if (!is_null($conditions)) {
154		if (!is_array($conditions)) {
155		throw new DBCoreException("Invalid conditions array");
156		}
157		$this->conditions = $conditions;
158		}
159		$this->prepareConditions();
160
161		if (!is_null($order)) {
162		$this->order = $order;
163		}
164		$this->prepareOrder();
165
166	View Code Duplication	if (!is_null($offset)) {
		0 ignored issues – show Duplication introduced 2016-09-06 12:46 UTC by Report Bug Copy Issue Report This code seems to be duplicated across 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. Loading history...
167		if (is_null($count)) {
168		$this->dbQuery->limit = $offset;
		0 ignored issues – show Bug introduced 2016-09-06 12:46 UTC by Report Bug Copy Issue Report The property `dbQuery` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
169		} else {
170		$this->dbQuery->limit = [$offset, $count];
171		}
172		}
173		$this->prepareLimit();
174
175		return $this;
176		}
177
178		/**
179		* Executes SQL query.
180		*
181		* @param bool $debug Debug mode flag.
182		*
183		* @return mixed Statement object or FALSE if an error occurred if SELECT
184		* query executed or number of affected rows on success if other
185		* type of query executed.
186		*/
187		public function go($debug = false) {
188		if ($debug) {
189		$this->debug();
190		} else {
191		if ($this->isSelector()) {
192		return DBCore::doSelectQuery($this);
193		}
194
195		return DBCore::doUpdateQuery($this);
		0 ignored issues – show Documentation introduced 2016-07-26 12:49 UTC by Report Bug Copy Issue Report `$this` is of type `this<Asymptix\db\DBPreparedQuery>`, but the function expects a `string`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
196		}
197		}
198
199		/**
200		* Shows debug information for the SQL query without execution.
201		*/
202		public function debug() {
203		self::showQueryDebugInfo($this->query, $this->types, $this->params);
204		}
205
206		/**
207		* Checks query parameters types correspondence.
208		*
209		* @param array $params Parameters of the query.
210		* @param string $types Types of the parameters ("idsb").
211		*
212		* @throws DBCoreException
213		*/
214		private static function checkParameterTypes($params, $types) {
215		if (count($params) != strlen($types)) {
216		throw new DBCoreException(
217		"Number of types is not equal parameters number"
218		);
219		}
220
221		foreach ($params as $key => $value) {
222		$type = $types[$key];
223
224		if (!in_array($type, ['i', 'd', 's', 'b'])) {
225		throw new DBCoreException(
226		"Invalid query parameters types string (type '" . $type .
227		"' is undefined, only 'i', 'd', 's' and 'b' types are acceptable)"
228		);
229		}
230
231		$typeByValue = DBField::getType($value);
232		if ($typeByValue != 's') {
233		if ($type != $typeByValue && !(
234		($type == 'd' && $typeByValue == 'i') \|\| // We can put integer as double
235		($type == 's' && $typeByValue == 'i') // We can put integer as string
236		)
237		) {
238		throw new DBCoreException(
239		"Invalid query parameters types string ('" . $value .
240		"' is not '" . $type . "' type but '" . $typeByValue . "' detected)"
241		);
242		}
243		} else { // in case if we try send non-string parameters as a string value
244		switch ($type) {
245		case 'i':
246		if (!(Tools::isNumeric($value) && ((string)(int)$value === $value))) {
247		throw new DBCoreException(
248		"Invalid query parameters types string ('" . $value . "' is not '" . $type . ")"
249		);
250		}
251		break;
252		case 'd':
253		if (!Tools::isDoubleString($value)) {
254		throw new DBCoreException(
255		"Invalid query parameters types string ('" . $value . "' is not '" . $type . ")"
256		);
257		}
258		break;
259		case 'b':
260		if (!in_array(strtolower($value), ['true', 'false'])) {
261		throw new DBCoreException(
262		"Invalid query parameters types string ('" . $value . "' is not '" . $type . ")"
263		);
264		}
265		break;
266		}
267		}
268		}
269		}
270
271		/**
272		* Return qwestion marks string for IN(...) SQL construction.
273		*
274		* @param int $length Length of the result string.
275		*
276		* @return string
277		*/
278		public static function sqlQMString($length) {
279		return implode(",", array_fill(0, $length, "?"));
280		}
281
282		/**
283		* Return fields and qwestion marks string for SET field1=?, ... SQL construction.
284		*
285		* @param array<mixed> $fieldsList List of the table fields (syntax: array[fieldName] = fieldValue)
286		* @param string $idFieldName Name of the primary key field.
287		*
288		* @return string
289		*/
290		public static function sqlQMValuesString($fieldsList, $idFieldName = "") {
291		$chunks = [];
292		foreach (array_keys($fieldsList) as $fieldName) {
293		if ($fieldName != $idFieldName) {
294		$chunks[] = "`" . $fieldName . "` = ?";
295		}
296		}
297
298		return implode(", ", $chunks);
299		}
300
301		/**
302		* Return fields and values string for SET field1=value1, ... SQL construction.
303		*
304		* @param array<mixed> $fieldsList List of the table fields (syntax: array[fieldName] = fieldValue)
305		* @param string $idFieldName Name of the primary key field.
306		*
307		* @return string
308		*/
309		public static function sqlValuesString($fieldsList, $idFieldName) {
310		$chunks = [];
311		foreach ($fieldsList as $fieldName => $fieldValue) {
312		if ($fieldName != $idFieldName) {
313		$chunks[]= "`" . $fieldName . "` = '" . $fieldValue . "'";
314		}
315		}
316
317		return implode(", ", $chunks);
318		}
319
320		/**
321		* Returns SQL types string.
322		* Type specification chars:
323		* i - corresponding variable has type integer
324		* d - corresponding variable has type double
325		* s - corresponding variable has type string
326		* b - corresponding variable is a blob and will be sent in packets.
327		*
328		* @param array<mixed> $fieldsList List of the table fields (syntax: array[fieldName] = fieldValue)
329		* @param string $idFieldName Name of the primary key field.
330		* @return string
331		*/
332		public static function sqlTypesString($fieldsList, $idFieldName = "") {
333		$typesString = "";
334		foreach ($fieldsList as $fieldName => $fieldValue) {
335		if ($fieldName != $idFieldName) {
336		if (Tools::isDouble($fieldValue)) {
337		$typesString.= "d";
338		} elseif (Tools::isInteger($fieldValue)) {
339		$typesString.= "i";
340		} else {
341		$typesString.= "s";
342		}
343		}
344		}
345
346		return $typesString;
347		}
348
349		/**
350		* Returns SQL types string of single type.
351		*
352		* @param string $type SQL type.
353		* @param int $length Length of the SQL types string.
354		*
355		* @return string
356		* @throws DBFieldTypeException If invalid type passed.
357		*/
358		public static function sqlSingleTypeString($type, $length) {
359		$type = DBField::castType($type);
360		$typesString = "";
361		while ($length > 0) {
362		$typesString.= $type;
363		$length--;
364		}
365
366		return $typesString;
367		}
368
369		/**
370		* Push values to the DBPreparedQuery SQL query field end.
371		*
372		* @param array $values List of pairs key => value or SQL query parts with
373		* parameters.
374		* @param string $separator Join separator.
375		*/
376		public function sqlPushValues($values, $separator = ", ") {
377		$chunks = [];
378		foreach ($values as $fieldName => $fieldValue) {
379		if (!is_array($fieldValue)) {
380		if (!is_null($fieldValue)) {
381		$chunks[] = $fieldName . " = ?";
382		$this->types.= DBField::getType($fieldValue);
383		$this->params[] = $fieldValue;
384		} else {
385		$chunks[] = $fieldName;
386		}
387		} else {
388		$condition = $fieldName;
389		$localParams = $fieldValue;
390
391		$chunks[] = $condition;
392		foreach ($localParams as $param) {
393		$this->types.= DBField::getType($param);
394		$this->params[] = $param;
395		}
396		}
397		}
398		$this->query.= implode($separator, $chunks);
399		}
400
401		}
402

Asymptix / Framework

DBPreparedQuery::isBindable() A last analyzed 2018-07-31 14:35 UTC

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DBPreparedQuery::isBindable() A
last analyzed 2018-07-31 14:35 UTC