|
1
|
|
|
<?php |
|
2
|
|
|
namespace Consolidation\OutputFormatters\StructuredData; |
|
3
|
|
|
|
|
4
|
|
|
/** |
|
5
|
|
|
* A structured data object may contains some elements that |
|
6
|
|
|
* are actually metadata. Metadata is not included in the |
|
7
|
|
|
* output of tabular data formatters (e.g. table, csv), although |
|
8
|
|
|
* some of these (e.g. table) may render the metadata alongside |
|
9
|
|
|
* the data. Raw data formatters (e.g. yaml, json) will render |
|
10
|
|
|
* both the data and the metadata. |
|
11
|
|
|
* |
|
12
|
|
|
* There are two possible options for the data format; either the |
|
13
|
|
|
* data is nested inside some element, and ever other item is |
|
14
|
|
|
* metadata, or the metadata may be nested inside some element, |
|
15
|
|
|
* and every other item is the data rows. |
|
16
|
|
|
* |
|
17
|
|
|
* Example 1: nested data |
|
18
|
|
|
* |
|
19
|
|
|
* [ |
|
20
|
|
|
* 'data' => [ ... rows of field data ... ], |
|
21
|
|
|
* 'metadata1' => '...', |
|
22
|
|
|
* 'metadata2' => '...', |
|
23
|
|
|
* ] |
|
24
|
|
|
* |
|
25
|
|
|
* Example 2: nested metadata |
|
26
|
|
|
* |
|
27
|
|
|
* [ |
|
28
|
|
|
* 'metadata' => [ ... metadata items ... ], |
|
29
|
|
|
* 'rowid1' => [ ... ], |
|
30
|
|
|
* 'rowid2' => [ ... ], |
|
31
|
|
|
* ] |
|
32
|
|
|
* |
|
33
|
|
|
* It is, of course, also possible that both the data and |
|
34
|
|
|
* the metadata may be nested inside subelements. |
|
35
|
|
|
*/ |
|
36
|
|
|
trait MetadataHolderTrait |
|
37
|
|
|
{ |
|
38
|
|
|
protected $dataKey = false; |
|
39
|
|
|
protected $metadataKey = false; |
|
40
|
|
|
|
|
41
|
|
|
public function getDataKey() |
|
42
|
|
|
{ |
|
43
|
|
|
return $this->dataKey; |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
public function setDataKey($key) |
|
47
|
|
|
{ |
|
48
|
|
|
$this->dataKey = $key; |
|
49
|
|
|
return $this; |
|
50
|
|
|
} |
|
51
|
|
|
|
|
52
|
|
|
public function getMetadataKey() |
|
53
|
|
|
{ |
|
54
|
|
|
return $this->metadataKey; |
|
55
|
|
|
} |
|
56
|
|
|
|
|
57
|
|
|
public function setMetadataKey($key) |
|
58
|
|
|
{ |
|
59
|
|
|
$this->metadataKey = $key; |
|
60
|
|
|
return $this; |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
public function extractData($data) |
|
64
|
|
|
{ |
|
65
|
|
|
if ($this->metadataKey) { |
|
66
|
|
|
unset($data[$this->metadataKey]); |
|
67
|
|
|
} |
|
68
|
|
|
if ($this->dataKey) { |
|
69
|
|
|
if (!isset($data[$this->dataKey])) { |
|
70
|
|
|
return []; |
|
71
|
|
|
} |
|
72
|
|
|
return $data[$this->dataKey]; |
|
73
|
|
|
} |
|
74
|
|
|
return $data; |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
public function extractMetadata($data) |
|
78
|
|
|
{ |
|
79
|
|
|
if (!$this->dataKey && !$this->metadataKey) { |
|
80
|
|
|
return []; |
|
81
|
|
|
} |
|
82
|
|
|
if ($this->dataKey) { |
|
83
|
|
|
unset($data[$this->dataKey]); |
|
84
|
|
|
} |
|
85
|
|
|
if ($this->metadataKey) { |
|
86
|
|
|
if (!isset($data[$this->metadataKey])) { |
|
87
|
|
|
return []; |
|
88
|
|
|
} |
|
89
|
|
|
return $data[$this->metadataKey]; |
|
90
|
|
|
} |
|
91
|
|
|
return $data; |
|
92
|
|
|
} |
|
93
|
|
|
} |
|
94
|
|
|
|
consolidation /
output-formatters
