DateSelectField   A
last analyzed

Complexity

Total Complexity 18

Size/Duplication

Total Lines 244
Duplicated Lines 0 %

Coupling/Cohesion

Components 1
Dependencies 6

Test Coverage

Coverage 93.9%

Importance

Changes 0
Metric Value
wmc 18
lcom 1
cbo 6
dl 0
loc 244
ccs 77
cts 82
cp 0.939
rs 10
c 0
b 0
f 0

7 Methods

Rating   Name   Duplication   Size   Complexity  
A __construct() 0 16 1
A setYearRange() 0 10 1
A parseInput() 0 21 3
A getValue() 0 16 3
B renderInput() 0 41 6
A createValidators() 0 8 1
A setValue() 0 20 3
1
<?php
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namespace mindplay\kissform\Fields;
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use DateTime;
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use DateTimeZone;
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use InvalidArgumentException;
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use mindplay\kissform\Facets\ParserInterface;
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use mindplay\kissform\Fields\Base\TimeZoneAwareField;
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use mindplay\kissform\InputModel;
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use mindplay\kissform\InputRenderer;
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use mindplay\kissform\Validators\CheckParser;
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use mindplay\lang;
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use UnexpectedValueException;
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/**
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 * This field type implements a date-picker using three (year/month/day) drop-downs.
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 */
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class DateSelectField extends TimeZoneAwareField implements ParserInterface
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{
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    const KEY_YEAR = 'year';
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    const KEY_MONTH = 'month';
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    const KEY_DAY = 'day';
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    /**
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     * @var int first year available for selection in year drop-down
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     */
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    public $year_min;
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    /**
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     * @var int last year available for selection in year drop-down
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     */
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    public $year_max;
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    /**
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     * @var string[] list of month names
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     */
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    public $months;
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    /**
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     * @var string label for the year drop-down
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     */
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    public $label_year;
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    /**
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     * @var string label for the year drop-down
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     */
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    public $label_month;
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    /**
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     * @var string label for the year drop-down
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     */
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    public $label_day;
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    /**
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     * @var string[] field order, e.g. KEY_* constants in the desired input order
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     */
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    public $order = [
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        self::KEY_DAY,
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        self::KEY_MONTH,
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        self::KEY_YEAR,
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    ];
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    /**
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     * @var string CSS class-name for the year drop-down
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     */
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    public $year_class = self::KEY_YEAR;
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    /**
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     * @var string CSS class-name for the year drop-down
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     */
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    public $month_class = self::KEY_MONTH;
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    /**
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     * @var string CSS class-name for the year drop-down
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     */
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    public $day_class = self::KEY_DAY;
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    /**
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     * @param string $name field name
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     * @param DateTimeZone|string|null $timezone input time-zone (or NULL to use the current default timezone)
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     */
83 2
    public function __construct($name, $timezone = null)
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    {
85 2
        parent::__construct($name);
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87 2
        $this->setTimeZone($timezone);
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89 2
        $this->setYearRange(0, -100);
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91 2
        $t = lang::domain("mindplay/kissform");
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        $this->months = explode('|', $t("months"));
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95 2
        $this->label_year = $t("year");
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        $this->label_month = $t("month");
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        $this->label_day = $t("day");
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    }
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    /**
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     * Set the range of years available in the year drop-down.
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     *
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     * Values are relative to current year - e.g. 0 is the current year, -1 is last
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     * year, 10 is 10 years from now, etc.
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     *
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     * @param int $min
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     * @param int $max
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     *
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     * @return void
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     */
111 2
    public function setYearRange($min, $max)
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    {
113 2
        $date = new DateTime();
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        $date->setTimezone($this->timezone);
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116 2
        $year = (int) $date->format('Y');
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        $this->year_min = $year + $min;
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        $this->year_max = $year + $max;
120 2
    }
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    /**
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     * Attempt to parse the given form input and convert to integer timestamp.
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     *
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     * @param string $input
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     *
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     * @return int|null integer timestamp on success; NULL on failure
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     */
129 1
    public function parseInput($input)
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    {
131 1
        if (!isset($input[self::KEY_YEAR], $input[self::KEY_MONTH], $input[self::KEY_DAY])) {
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            return null;
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        }
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135 1
        $year = (int) $input[self::KEY_YEAR];
136 1
        $month = (int) $input[self::KEY_MONTH];
137 1
        $day = (int) $input[self::KEY_DAY];
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139 1
        if (! checkdate($month, $day, $year)) {
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            return null; // invalid date
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        }
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143 1
        $date = new DateTime();
144 1
        $date->setTimezone($this->timezone);
145 1
        $date->setDate($year, $month, $day);
146 1
        $date->setTime(0, 0, 0);
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148 1
        return $date->getTimestamp();
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    }
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    /**
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     * @param InputModel $model
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     *
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     * @return int|null timestamp
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     *
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     * @throws UnexpectedValueException if the input is invalid (assumes valid input)
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     */
158 1
    public function getValue(InputModel $model)
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    {
160 1
        $input = $model->getInput($this);
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162 1
        if ($input === null) {
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            return null;
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        }
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166 1
        $value = $this->parseInput($input);
0 ignored issues
show
Bug introduced by
It seems like $input defined by $model->getInput($this) on line 160 can also be of type array; however, mindplay\kissform\Fields...lectField::parseInput() does only seem to accept string, maybe add an additional type check?

If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:

/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.

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167
168 1
        if ($value === null) {
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            throw new UnexpectedValueException("invalid date input");
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        }
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172 1
        return $value;
0 ignored issues
show
Bug Best Practice introduced by
The return type of return $value; (integer) is incompatible with the return type of the parent method mindplay\kissform\Field::getValue of type string|array|null.

If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design.

Let’s take a look at an example:

class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}

Our function my_function expects a Post object, and outputs the author of the post. The base class Post returns a simple string and outputting a simple string will work just fine. However, the child class BlogPost which is a sub-type of Post instead decided to return an object, and is therefore violating the SOLID principles. If a BlogPost were passed to my_function, PHP would not complain, but ultimately fail when executing the strtoupper call in its body.

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173
    }
174
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    /**
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     * @param InputModel $model
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     * @param int|null   $value timestamp
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     *
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     * @return void
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     *
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     * @throws InvalidArgumentException if the given value is unacceptable.
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     */
183 1
    public function setValue(InputModel $model, $value)
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    {
185 1
        if (is_int($value)) {
186 1
            $date = new Datetime();
187 1
            $date->setTimestamp($value);
188 1
            $date->setTimezone($this->timezone);
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190 1
            $model->setInput(
191 1
                $this, [
192 1
                    self::KEY_YEAR  => $date->format('Y'),
193 1
                    self::KEY_MONTH => $date->format('n'),
194 1
                    self::KEY_DAY   => $date->format('j'),
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                ]
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            );
197 1
        } elseif ($value === null) {
198 1
            $model->setInput($this, null);
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        } else {
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            throw new InvalidArgumentException("string expected");
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        }
202 1
    }
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    /**
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     * @inheritdoc
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     *
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     * @throws UnexpectedValueException
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     */
209 1
    public function renderInput(InputRenderer $renderer, InputModel $model, array $attr)
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    {
211 1
        $years = range($this->year_min, $this->year_max);
212 1
        $months = range(1, 12);
213 1
        $days = range(1, 31);
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215 1
        $year = new SelectField(self::KEY_YEAR, array_combine($years, $years));
216 1
        $month = new SelectField(self::KEY_MONTH, array_combine($months, $this->months));
217 1
        $day = new SelectField(self::KEY_DAY, array_combine($days, $days));
218
219 1
        if (! $this->isRequired()) {
220 1
            $year->disabled = $this->label_year;
221 1
            $month->disabled = $this->label_month;
222 1
            $day->disabled = $this->label_day;
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        }
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225 1
        $html = '';
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227 1
        $renderer->visit($this, function () use ($renderer, $year, $month, $day, &$html) {
228 1
            foreach ($this->order as $key) {
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                switch ($key) {
230 1
                    case DateSelectField::KEY_YEAR:
231 1
                        $html .= $renderer->render($year, ['class' => $this->year_class]);
232 1
                        break;
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234 1
                    case DateSelectField::KEY_MONTH:
235 1
                        $html .= $renderer->render($month, ['class' => $this->month_class]);
236 1
                        break;
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238 1
                    case DateSelectField::KEY_DAY:
239 1
                        $html .= $renderer->render($day, ['class' => $this->day_class]);
240 1
                        break;
241
242
                    default:
243 1
                        throw new UnexpectedValueException("expected 'year', 'month' or 'day' - got: {$key}");
244
                }
245
            }
246 1
        });
247
248 1
        return $html;
249
    }
250
251
    /**
252
     * {@inheritdoc}
253
     */
254 1
    public function createValidators()
255
    {
256 1
        $validators = parent::createValidators();
257
258 1
        $validators[] = new CheckParser($this, "datetime");
259
        
260 1
        return $validators;
261
    }
262
}
263