Completed
Push — master ( 7ba73a...cfde8a )
by Steve
29s
created

ParentDelegationBuilder::setParentContext()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 4
c 0
b 0
f 0
rs 10
cc 1
eloc 2
nc 1
nop 1
1
<?php
2
3
namespace StoutLogic\AcfBuilder;
4
5
/**
6
 * Builds a configuration.
7
 * Can have parent contexts to delegate missing methods to.
8
 */
9
abstract class ParentDelegationBuilder implements Builder
10
{
11
    /**
12
     * The parent Builder, if this is a child Builder
13
     * @var Builder
14
     */
15
    private $parentContext;
16
17
    /**
18
     * Builds the configuration
19
     * @return array configuration
20
     */
21
    abstract public function build();
22
23
    /**
24
     * @param Builder $builder
25
     */
26
    public function setParentContext(Builder $builder)
27
    {
28
        $this->parentContext = $builder;
29
    }
30
31
    /**
32
     * @return Builder
33
     */
34
    public function getParentContext()
35
    {
36
        return $this->parentContext;
37
    }
38
39
    /**
40
     * Returns the root context
41
     * @return Builder
42
     */
43
    public function getRootContext()
44
    {
45
        if ($parentContext = $this->getParentContext()) {
46
            if ($parentContext instanceof ParentDelegationBuilder) {
47
                return $parentContext->getRootContext();
48
            }
49
            return $parentContext;
50
        }
51
52
        return $this;
53
    }
54
55
    /**
56
     * If a method is missing, check to see if it exist on the $parentContext
57
     * and delegate the call to it.
58
     * @param  string $method
59
     * @param  array $args
60
     * @throws \Exception when a method is not found on the $parentContext
61
     * @return mixed
62
     */
63
    public function __call($method, $args)
64
    {
65
        if ($this->parentContext) {
66
            return call_user_func_array([$this->parentContext, $method], $args);
67
        }
68
69
        throw new \Exception('No such function: '.$method);
70
    }
71
}
72