Expression::__toString()

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by BENOIT

created 2018-04-05 11:12 UTC

↳ Parent: Expression

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<?php
declare(strict_types=1);

namespace BenTools\Where\Expression;

abstract class Expression
{

    /**
     * @param       $expression
     * @param array ...$values
     * @return CompositeExpression
     * @throws \InvalidArgumentException
     */
    final public function and($expression, ...$values): CompositeExpression
    {
        $expression = $this->where($expression, ...$values);
        return new CompositeExpression(' AND ', $this, $expression);
    }

    /**
     * @param       $expression
     * @param array ...$values
     * @return CompositeExpression
     * @throws \InvalidArgumentException
     */
    final public function or($expression, ...$values): CompositeExpression
    {
        $expression = $this->where($expression, ...$values);
        return new CompositeExpression(' OR ', $this, $expression);
    }

    /**
     * @param       $expression
     * @param array ...$values
     * @return CompositeExpression
     * @throws \InvalidArgumentException
     */
    final public function plus($expression, ...$values): CompositeExpression
    {
        $expression = $this->where($expression, ...$values);
        return new CompositeExpression(', ', $this, $expression);
    }

    /**
     * @param       $expression
     * @param array ...$values
     * @return CompositeExpression
     * @throws \InvalidArgumentException
     */
    final public function as($expression, ...$values): CompositeExpression
    {
        $expression = $this->where($expression, ...$values);
        return new CompositeExpression(' AS ', $this, $expression);
    }

    /**
     * @return GroupExpression
     */
    final public function asGroup(): GroupExpression
    {
        return $this instanceof GroupExpression ? $this : new GroupExpression($this);
    }

    /**
     * @return Expression|NegatedExpression
     */
    final public function negate(): Expression
    {
        return $this instanceof NegatedExpression ? clone $this->expression : new NegatedExpression($this);
class MyClass { }

$x = new MyClass();
$x->foo = true;
    }

    /**
     * @param       $expression
     * @param array ...$values
     * @return Expression
     * @throws \InvalidArgumentException
     */
    final public static function where($expression, ...$values): self
    {
        if (is_scalar($expression)) {
            return new Condition($expression, self::valuesFactory($values));
        }
        if ($expression instanceof self) {
            if (1 !== func_num_args()) {
                throw new \InvalidArgumentException("Cannot pass values to an existing Expression object.");
            }
            return $expression;
        }
        throw new \InvalidArgumentException(sprintf('Expected string or Expression object, %s given', is_object($expression) ? get_class($expression) : gettype($expression)));
    }

    /**
     * @param       $expression
     * @param array ...$values
     * @return GroupExpression
     * @throws \InvalidArgumentException
     */
    final public static function group($expression, ...$values): GroupExpression
    {
        return new GroupExpression(self::where($expression, ...$values));
    }

    /**
     * @param       $expression
     * @param array ...$values
     * @return NegatedExpression
     * @throws \InvalidArgumentException
     */
    final public static function not($expression, ...$values): NegatedExpression
    {
        return new NegatedExpression(self::where($expression, ...$values));
    }

    /**
     * @param array $values
     * @return array
     * @throws \InvalidArgumentException
     */
    final private static function valuesFactory(array $values): array
    {
        if (0 === count($values)) {
            return [];
        }
        if (1 === count($values) && is_array($values[0])) {
            return $values[0];
        }
        foreach ($values as $value) {
            if (is_array($value)) {
                throw new \InvalidArgumentException("Cannot construct expression with multiple array values.");
            }
        }
        return $values;
    }

    /**
     * @return string
     */
    abstract public function __toString(): string;

    /**
     * @return array
     */
    abstract public function getValues(): array;

    /**
     * @param Expression[] ...$expressions
     * @return array
     */
    final public static function valuesOf(self ...$expressions): array
    {
        $generator = function (Expression ...$expressions) {
            foreach ($expressions as $expression) {
                foreach ($expression->getValues() as $key => $value) {
                    if (is_numeric($key)) {
                        yield $value;
                    } else {
                        yield $key => $value;
                    }
                }
            }
        };
        return iterator_to_array($generator(...$expressions));
    }
}


1			<?php
2			declare(strict_types=1);
3
4			namespace BenTools\Where\Expression;
5
6			abstract class Expression
7			{
8
9			/**
10			* @param $expression
11			* @param array ...$values
12			* @return CompositeExpression
13			* @throws \InvalidArgumentException
14			*/
15			final public function and($expression, ...$values): CompositeExpression
16			{
17			$expression = $this->where($expression, ...$values);
18			return new CompositeExpression(' AND ', $this, $expression);
19			}
20
21			/**
22			* @param $expression
23			* @param array ...$values
24			* @return CompositeExpression
25			* @throws \InvalidArgumentException
26			*/
27			final public function or($expression, ...$values): CompositeExpression
28			{
29			$expression = $this->where($expression, ...$values);
30			return new CompositeExpression(' OR ', $this, $expression);
31			}
32
33			/**
34			* @param $expression
35			* @param array ...$values
36			* @return CompositeExpression
37			* @throws \InvalidArgumentException
38			*/
39			final public function plus($expression, ...$values): CompositeExpression
40			{
41			$expression = $this->where($expression, ...$values);
42			return new CompositeExpression(', ', $this, $expression);
43			}
44
45			/**
46			* @param $expression
47			* @param array ...$values
48			* @return CompositeExpression
49			* @throws \InvalidArgumentException
50			*/
51			final public function as($expression, ...$values): CompositeExpression
52			{
53			$expression = $this->where($expression, ...$values);
54			return new CompositeExpression(' AS ', $this, $expression);
55			}
56
57			/**
58			* @return GroupExpression
59			*/
60			final public function asGroup(): GroupExpression
61			{
62			return $this instanceof GroupExpression ? $this : new GroupExpression($this);
63			}
64
65			/**
66			* @return Expression\|NegatedExpression
67			*/
68			final public function negate(): Expression
69			{
70			return $this instanceof NegatedExpression ? clone $this->expression : new NegatedExpression($this);
			0 ignored issues – show Bug introduced 2017-10-06 11:26 UTC by Report Bug Copy Issue Report The property `expression` 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...
71			}
72
73			/**
74			* @param $expression
75			* @param array ...$values
76			* @return Expression
77			* @throws \InvalidArgumentException
78			*/
79			final public static function where($expression, ...$values): self
80			{
81			if (is_scalar($expression)) {
82			return new Condition($expression, self::valuesFactory($values));
83			}
84			if ($expression instanceof self) {
85			if (1 !== func_num_args()) {
86			throw new \InvalidArgumentException("Cannot pass values to an existing Expression object.");
87			}
88			return $expression;
89			}
90			throw new \InvalidArgumentException(sprintf('Expected string or Expression object, %s given', is_object($expression) ? get_class($expression) : gettype($expression)));
91			}
92
93			/**
94			* @param $expression
95			* @param array ...$values
96			* @return GroupExpression
97			* @throws \InvalidArgumentException
98			*/
99			final public static function group($expression, ...$values): GroupExpression
100			{
101			return new GroupExpression(self::where($expression, ...$values));
102			}
103
104			/**
105			* @param $expression
106			* @param array ...$values
107			* @return NegatedExpression
108			* @throws \InvalidArgumentException
109			*/
110			final public static function not($expression, ...$values): NegatedExpression
111			{
112			return new NegatedExpression(self::where($expression, ...$values));
113			}
114
115			/**
116			* @param array $values
117			* @return array
118			* @throws \InvalidArgumentException
119			*/
120			final private static function valuesFactory(array $values): array
121			{
122			if (0 === count($values)) {
123			return [];
124			}
125			if (1 === count($values) && is_array($values[0])) {
126			return $values[0];
127			}
128			foreach ($values as $value) {
129			if (is_array($value)) {
130			throw new \InvalidArgumentException("Cannot construct expression with multiple array values.");
131			}
132			}
133			return $values;
134			}
135
136			/**
137			* @return string
138			*/
139			abstract public function __toString(): string;
140
141			/**
142			* @return array
143			*/
144			abstract public function getValues(): array;
145
146			/**
147			* @param Expression[] ...$expressions
148			* @return array
149			*/
150			final public static function valuesOf(self ...$expressions): array
151			{
152			$generator = function (Expression ...$expressions) {
153			foreach ($expressions as $expression) {
154			foreach ($expression->getValues() as $key => $value) {
155			if (is_numeric($key)) {
156			yield $value;
157			} else {
158			yield $key => $value;
159			}
160			}
161			}
162			};
163			return iterator_to_array($generator(...$expressions));
164			}
165			}
166

bpolaszek / where

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Expression::__toString()

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