1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* This file contains the SodaDataset class |
5
|
|
|
* |
6
|
|
|
* @copyright 2015 Vladimir Jimenez |
7
|
|
|
* @license https://github.com/allejo/PhpSoda/blob/master/LICENSE.md MIT |
8
|
|
|
*/ |
9
|
|
|
|
10
|
|
|
namespace allejo\Socrata; |
11
|
|
|
|
12
|
|
|
use allejo\Socrata\Converters\Converter; |
13
|
|
|
use allejo\Socrata\Exceptions\InvalidResourceException; |
14
|
|
|
use allejo\Socrata\Utilities\StringUtilities; |
15
|
|
|
use allejo\Socrata\Utilities\UrlQuery; |
16
|
|
|
|
17
|
|
|
/** |
18
|
|
|
* An object provided to interact with a Socrata dataset directly. Provides functionality for fetching the dataset, an |
19
|
|
|
* individual row, or updating/replacing a dataset. |
20
|
|
|
* |
21
|
|
|
* @package allejo\Socrata |
22
|
|
|
* @since 0.1.0 |
23
|
|
|
*/ |
24
|
|
|
class SodaDataset |
25
|
|
|
{ |
26
|
|
|
/** |
27
|
|
|
* The client with all the authentication and configuration set |
28
|
|
|
* |
29
|
|
|
* @var SodaClient |
30
|
|
|
*/ |
31
|
|
|
private $sodaClient; |
32
|
|
|
|
33
|
|
|
/** |
34
|
|
|
* The object used to make URL jobs for common requests |
35
|
|
|
* |
36
|
|
|
* @var UrlQuery |
37
|
|
|
*/ |
38
|
|
|
private $urlQuery; |
39
|
|
|
|
40
|
|
|
/** |
41
|
|
|
* The 4x4 resource ID of a dataset |
42
|
|
|
* |
43
|
|
|
* @var string |
44
|
|
|
*/ |
45
|
|
|
private $resourceId; |
46
|
|
|
|
47
|
|
|
/** |
48
|
|
|
* The API version of the dataset being worked with |
49
|
|
|
* |
50
|
|
|
* @var int |
51
|
|
|
*/ |
52
|
|
|
private $apiVersion; |
53
|
|
|
|
54
|
|
|
/** |
55
|
|
|
* The API's cached metadata |
56
|
|
|
* |
57
|
|
|
* @var array |
58
|
|
|
*/ |
59
|
|
|
private $metadata; |
60
|
|
|
|
61
|
|
|
/** |
62
|
|
|
* Create an object for interacting with a Socrata dataset |
63
|
|
|
* |
64
|
|
|
* @param SodaClient $sodaClient The SodaClient with all of the authentication information and settings for access |
65
|
|
|
* @param string $resourceID The 4x4 resource ID of the dataset that will be referenced |
66
|
|
|
* |
67
|
|
|
* @throws InvalidResourceException If the given resource ID does not match the pattern of a resource ID |
68
|
|
|
* |
69
|
|
|
* @since 0.1.0 |
70
|
|
|
*/ |
71
|
|
|
public function __construct ($sodaClient, $resourceID) |
72
|
|
|
{ |
73
|
|
|
StringUtilities::validateResourceID($resourceID); |
74
|
|
|
|
75
|
|
|
if (!($sodaClient instanceof SodaClient)) |
76
|
|
|
{ |
77
|
|
|
throw new \InvalidArgumentException("The first variable is expected to be a SodaClient object"); |
78
|
|
|
} |
79
|
|
|
|
80
|
|
|
$this->apiVersion = 0; |
81
|
|
|
$this->sodaClient = $sodaClient; |
82
|
|
|
$this->resourceId = $resourceID; |
83
|
|
|
$this->urlQuery = new UrlQuery($this->buildResourceUrl(), $this->sodaClient->getToken(), $this->sodaClient->getEmail(), $this->sodaClient->getPassword()); |
84
|
|
|
|
85
|
|
|
$this->urlQuery->setOAuth2Token($this->sodaClient->getOAuth2Token()); |
86
|
|
|
} |
87
|
|
|
|
88
|
|
|
/** |
89
|
|
|
* Get the API version this dataset is using |
90
|
|
|
* |
91
|
|
|
* @since 0.1.0 |
92
|
|
|
* |
93
|
|
|
* @return double The API version number |
|
|
|
|
94
|
|
|
*/ |
95
|
|
|
public function getApiVersion () |
96
|
|
|
{ |
97
|
|
|
// If we don't have the API version set, send a dummy query with limit 0 since we only care about the headers |
98
|
|
|
if ($this->apiVersion == 0) |
99
|
|
|
{ |
100
|
|
|
$soql = new SoqlQuery(); |
101
|
|
|
$soql->limit(0); |
102
|
|
|
|
103
|
|
|
// When we fetch a dataset, the API version is stored |
104
|
|
|
$this->getDataset($soql); |
105
|
|
|
} |
106
|
|
|
|
107
|
|
|
return $this->apiVersion; |
108
|
|
|
} |
109
|
|
|
|
110
|
|
|
/** |
111
|
|
|
* Get the metadata of a dataset |
112
|
|
|
* |
113
|
|
|
* @param bool $forceFetch Set to true if the cached metadata for the dataset is outdata or needs to be refreshed |
114
|
|
|
* |
115
|
|
|
* @see SodaClient::enableAssociativeArrays() |
116
|
|
|
* @see SodaClient::disableAssociativeArrays() |
117
|
|
|
* |
118
|
|
|
* @since 0.1.0 |
119
|
|
|
* |
120
|
|
|
* @return array The metadata as a PHP array. The array will contain associative arrays or stdClass objects from |
121
|
|
|
* the decoded JSON received from the data set. |
122
|
|
|
*/ |
123
|
|
|
public function getMetadata ($forceFetch = false) |
124
|
|
|
{ |
125
|
|
|
if (empty($this->metadata) || $forceFetch) |
126
|
|
|
{ |
127
|
|
|
$metadataUrlQuery = new UrlQuery($this->buildViewUrl(), $this->sodaClient->getToken(), $this->sodaClient->getEmail(), $this->sodaClient->getPassword()); |
128
|
|
|
$metadataUrlQuery->setOAuth2Token($this->sodaClient->getOAuth2Token()); |
129
|
|
|
|
130
|
|
|
$this->metadata = $metadataUrlQuery->sendGet("", $this->sodaClient->associativeArrayEnabled()); |
|
|
|
|
131
|
|
|
} |
132
|
|
|
|
133
|
|
|
return $this->metadata; |
134
|
|
|
} |
135
|
|
|
|
136
|
|
|
/** |
137
|
|
|
* Fetch a dataset based on a resource ID. |
138
|
|
|
* |
139
|
|
|
* @param string|SoqlQuery $filterOrSoqlQuery A simple filter or a SoqlQuery to filter the results |
140
|
|
|
* |
141
|
|
|
* @see SodaClient::enableAssociativeArrays() |
142
|
|
|
* @see SodaClient::disableAssociativeArrays() |
143
|
|
|
* |
144
|
|
|
* @since 0.1.0 |
145
|
|
|
* |
146
|
|
|
* @return array The data set as a PHP array. The array will contain associative arrays or stdClass objects from |
147
|
|
|
* the decoded JSON received from the data set. |
148
|
|
|
*/ |
149
|
|
|
public function getDataset ($filterOrSoqlQuery = "") |
150
|
|
|
{ |
151
|
|
|
$headers = array(); |
152
|
|
|
|
153
|
|
|
if (!($filterOrSoqlQuery instanceof SoqlQuery) && StringUtilities::isNullOrEmpty($filterOrSoqlQuery)) |
154
|
|
|
{ |
155
|
|
|
$filterOrSoqlQuery = new SoqlQuery(); |
156
|
|
|
} |
157
|
|
|
|
158
|
|
|
$dataset = $this->urlQuery->sendGet($filterOrSoqlQuery, $this->sodaClient->associativeArrayEnabled(), $headers); |
|
|
|
|
159
|
|
|
|
160
|
|
|
$this->setApiVersion($headers); |
|
|
|
|
161
|
|
|
|
162
|
|
|
return $dataset; |
163
|
|
|
} |
164
|
|
|
|
165
|
|
|
/** |
166
|
|
|
* Delete an individual row based on their row identifier. For deleting more than a single row, use an upsert |
167
|
|
|
* instead. |
168
|
|
|
* |
169
|
|
|
* @param int|string $rowID The row identifier of the row to fetch; if no identifier is set for the dataset, the |
170
|
|
|
* internal row identifier should be used |
171
|
|
|
* |
172
|
|
|
* @link http://dev.socrata.com/publishers/direct-row-manipulation.html#deleting-a-row Deleting a Row |
173
|
|
|
* |
174
|
|
|
* @see SodaClient::enableAssociativeArrays() |
175
|
|
|
* @see SodaClient::disableAssociativeArrays() |
176
|
|
|
* @see upsert() |
177
|
|
|
* |
178
|
|
|
* @since 0.1.2 |
179
|
|
|
* |
180
|
|
|
* @return mixed An object with information about the deletion. The array will contain associative arrays or |
181
|
|
|
* stdClass objects from the decoded JSON received from the data set. |
182
|
|
|
*/ |
183
|
|
|
public function deleteRow ($rowID) |
184
|
|
|
{ |
185
|
|
|
return $this->individualRow($rowID, "delete"); |
186
|
|
|
} |
187
|
|
|
|
188
|
|
|
/** |
189
|
|
|
* Fetch an individual row from a dataset. |
190
|
|
|
* |
191
|
|
|
* @param int|string $rowID The row identifier of the row to fetch; if no identifier is set for the dataset, the |
192
|
|
|
* internal row identifier should be used |
193
|
|
|
* |
194
|
|
|
* @link http://dev.socrata.com/publishers/direct-row-manipulation.html#retrieving-an-individual-row Retrieving |
195
|
|
|
* An Individual Row |
196
|
|
|
* |
197
|
|
|
* @see SodaClient::enableAssociativeArrays() |
198
|
|
|
* @see SodaClient::disableAssociativeArrays() |
199
|
|
|
* |
200
|
|
|
* @since 0.1.2 |
201
|
|
|
* |
202
|
|
|
* @return array The data set as a PHP array. The array will contain associative arrays or stdClass objects from |
203
|
|
|
* the decoded JSON received from the data set. |
204
|
|
|
*/ |
205
|
|
|
public function getRow ($rowID) |
206
|
|
|
{ |
207
|
|
|
return $this->individualRow($rowID, "get"); |
208
|
|
|
} |
209
|
|
|
|
210
|
|
|
/** |
211
|
|
|
* Replace the entire dataset with the new payload provided |
212
|
|
|
* |
213
|
|
|
* Data will always be transmitted as JSON to Socrata even though different forms are accepted. In order to pass |
214
|
|
|
* other forms of data, you must use a Converter class that has a `toJson()` method, such as the CsvConverter. |
215
|
|
|
* |
216
|
|
|
* @param array|Converter|JSON $payload The data that will be upserted to the Socrata dataset as a PHP array, an |
217
|
|
|
* instance of a Converter child class, or a JSON string |
218
|
|
|
* |
219
|
|
|
* @link http://dev.socrata.com/publishers/replace.html Replacing a dataset with Replace |
220
|
|
|
* |
221
|
|
|
* @see Converter |
222
|
|
|
* @see CsvConverter |
223
|
|
|
* |
224
|
|
|
* @since 0.1.0 |
225
|
|
|
* |
226
|
|
|
* @return mixed |
227
|
|
|
*/ |
228
|
|
|
public function replace ($payload) |
229
|
|
|
{ |
230
|
|
|
$upsertData = $this->handleJson($payload); |
231
|
|
|
|
232
|
|
|
return $this->urlQuery->sendPut($upsertData, $this->sodaClient->associativeArrayEnabled()); |
233
|
|
|
} |
234
|
|
|
|
235
|
|
|
/** |
236
|
|
|
* Create, update, and delete rows in a single operation, using their row identifiers. |
237
|
|
|
* |
238
|
|
|
* Data will always be transmitted as JSON to Socrata even though different forms are accepted. In order to pass |
239
|
|
|
* other forms of data, you must use a Converter class that has a `toJson()` method, such as the CsvConverter. |
240
|
|
|
* |
241
|
|
|
* @param array|Converter|JSON $payload The data that will be upserted to the Socrata dataset as a PHP array, an |
242
|
|
|
* instance of a Converter child class, or a JSON string |
243
|
|
|
* |
244
|
|
|
* @link http://dev.socrata.com/publishers/upsert.html Updating Rows in Bulk with Upsert |
245
|
|
|
* |
246
|
|
|
* @see Converter |
247
|
|
|
* @see CsvConverter |
248
|
|
|
* |
249
|
|
|
* @since 0.1.0 |
250
|
|
|
* |
251
|
|
|
* @return mixed |
252
|
|
|
*/ |
253
|
|
|
public function upsert ($payload) |
254
|
|
|
{ |
255
|
|
|
$upsertData = $this->handleJson($payload); |
256
|
|
|
|
257
|
|
|
return $this->urlQuery->sendPost($upsertData, $this->sodaClient->associativeArrayEnabled()); |
258
|
|
|
} |
259
|
|
|
|
260
|
|
|
/** |
261
|
|
|
* Build the API URL that will be used to access the dataset |
262
|
|
|
* |
263
|
|
|
* @return string The apt API URL |
264
|
|
|
*/ |
265
|
|
|
private function buildResourceUrl () |
266
|
|
|
{ |
267
|
|
|
return $this->buildApiUrl("resource"); |
268
|
|
|
} |
269
|
|
|
|
270
|
|
|
/** |
271
|
|
|
* Build the API URL that will be used to access the metadata for the dataset |
272
|
|
|
* |
273
|
|
|
* @return string The apt API URL |
274
|
|
|
*/ |
275
|
|
|
private function buildViewUrl () |
276
|
|
|
{ |
277
|
|
|
return $this->buildApiUrl("views"); |
278
|
|
|
} |
279
|
|
|
|
280
|
|
|
/** |
281
|
|
|
* Build the URL that will be used to access the API for the respective action |
282
|
|
|
* |
283
|
|
|
* @param string $location The location of where to get information from |
284
|
|
|
* @param string|null $identifier The part of the URL that will end with .json. This will either be the resource |
285
|
|
|
* ID or it will be a row ID prepended with the resource ID |
286
|
|
|
* |
287
|
|
|
* @return string The API URL |
288
|
|
|
*/ |
289
|
|
|
private function buildApiUrl ($location, $identifier = NULL) |
290
|
|
|
{ |
291
|
|
|
if ($identifier === NULL) |
292
|
|
|
{ |
293
|
|
|
$identifier = $this->resourceId; |
294
|
|
|
} |
295
|
|
|
|
296
|
|
|
return sprintf("%s://%s/%s/%s.json", UrlQuery::DEFAULT_PROTOCOL, $this->sodaClient->getDomain(), $location, $identifier); |
297
|
|
|
} |
298
|
|
|
|
299
|
|
|
/** |
300
|
|
|
* Handle different forms of data to be returned in JSON format so it can be sent to Socrata. |
301
|
|
|
* |
302
|
|
|
* Data will always be transmitted as JSON to Socrata even though different forms are accepted. |
303
|
|
|
* |
304
|
|
|
* @param array|Converter|JSON $payload The data that will be upserted to the Socrata dataset as a PHP array, an |
305
|
|
|
* instance of a Converter child class, or a JSON string |
306
|
|
|
* |
307
|
|
|
* @return string A JSON encoded string available to be used for UrlQuery requsts |
|
|
|
|
308
|
|
|
*/ |
309
|
|
|
private function handleJson ($payload) |
310
|
|
|
{ |
311
|
|
|
$uploadData = $payload; |
312
|
|
|
|
313
|
|
|
if (is_array($payload)) |
314
|
|
|
{ |
315
|
|
|
$uploadData = json_encode($payload); |
316
|
|
|
} |
317
|
|
|
else if ($payload instanceof Converter) |
318
|
|
|
{ |
319
|
|
|
$uploadData = $payload->toJson(); |
320
|
|
|
} |
321
|
|
|
else if (!StringUtilities::isJson($payload)) |
322
|
|
|
{ |
323
|
|
|
throw new \InvalidArgumentException("The given data is not valid JSON"); |
324
|
|
|
} |
325
|
|
|
|
326
|
|
|
return $uploadData; |
327
|
|
|
} |
328
|
|
|
|
329
|
|
|
/** |
330
|
|
|
* Interact with an individual row. Either to retrieve it or to delete it; both actions use the same API endpoint |
331
|
|
|
* with the exception of what type of request is sent. |
332
|
|
|
* |
333
|
|
|
* @param string $rowID The 4x4 resource ID of the dataset to work with |
334
|
|
|
* @param string $method Either `get` or `delete` |
335
|
|
|
* |
336
|
|
|
* @return mixed |
337
|
|
|
*/ |
338
|
|
|
private function individualRow ($rowID, $method) |
339
|
|
|
{ |
340
|
|
|
$headers = array(); |
341
|
|
|
|
342
|
|
|
// For a single row, the format is the `resourceID/rowID.json`, so we'll use that as the "location" of the Api URL |
343
|
|
|
$apiEndPoint = $this->buildApiUrl("resource", $this->resourceId . "/" . $rowID); |
344
|
|
|
|
345
|
|
|
$urlQuery = new UrlQuery($apiEndPoint, $this->sodaClient->getToken(), $this->sodaClient->getEmail(), $this->sodaClient->getPassword()); |
346
|
|
|
$urlQuery->setOAuth2Token($this->sodaClient->getOAuth2Token()); |
347
|
|
|
|
348
|
|
|
$result = $this->sendIndividualRequest($urlQuery, $method, $this->sodaClient->associativeArrayEnabled(), $headers); |
349
|
|
|
|
350
|
|
|
$this->setApiVersion($headers); |
351
|
|
|
|
352
|
|
|
return $result; |
353
|
|
|
} |
354
|
|
|
|
355
|
|
|
/** |
356
|
|
|
* Send the appropriate request header based on the method that's required |
357
|
|
|
* |
358
|
|
|
* @param UrlQuery $urlQuery The object for the API endpoint |
359
|
|
|
* @param string $method Either `get` or `delete` |
360
|
|
|
* @param bool $associativeArrays Whether or not to return the information as an associative array |
361
|
|
|
* @param array $headers An array with the cURL headers received |
362
|
|
|
* |
363
|
|
|
* @return mixed |
364
|
|
|
*/ |
365
|
|
|
private function sendIndividualRequest ($urlQuery, $method, $associativeArrays, &$headers) |
366
|
|
|
{ |
367
|
|
|
if ($method === "get") |
368
|
|
|
{ |
369
|
|
|
return $urlQuery->sendGet("", $associativeArrays, $headers); |
370
|
|
|
} |
371
|
|
|
else if ($method === "delete") |
372
|
|
|
{ |
373
|
|
|
return $urlQuery->sendDelete($associativeArrays, $headers); |
374
|
|
|
} |
375
|
|
|
|
376
|
|
|
throw new \InvalidArgumentException("Invalid request method"); |
377
|
|
|
} |
378
|
|
|
|
379
|
|
|
/** |
380
|
|
|
* Determine and save the API version if it does not exist for easy access later |
381
|
|
|
* |
382
|
|
|
* @param array $headers An array with the cURL headers received |
383
|
|
|
*/ |
384
|
|
|
private function setApiVersion ($headers) |
385
|
|
|
{ |
386
|
|
|
// Only set the API version number if it hasn't been set yet |
387
|
|
|
if ($this->apiVersion == 0) |
388
|
|
|
{ |
389
|
|
|
$this->apiVersion = $this->parseApiVersion($headers); |
|
|
|
|
390
|
|
|
} |
391
|
|
|
} |
392
|
|
|
|
393
|
|
|
/** |
394
|
|
|
* Determine the version number of the API this dataset is using |
395
|
|
|
* |
396
|
|
|
* @param array $responseHeaders An array with the cURL headers received |
397
|
|
|
* |
398
|
|
|
* @return double The Socrata API version number this dataset uses |
|
|
|
|
399
|
|
|
*/ |
400
|
|
|
private function parseApiVersion ($responseHeaders) |
401
|
|
|
{ |
402
|
|
|
// A header that's unique to the legacy API |
403
|
|
|
if (array_key_exists('X-SODA2-Legacy-Types', $responseHeaders) && $responseHeaders['X-SODA2-Legacy-Types']) |
404
|
|
|
{ |
405
|
|
|
return 1; |
406
|
|
|
} |
407
|
|
|
|
408
|
|
|
// A header that's unique to the new API |
409
|
|
|
if (array_key_exists('X-SODA2-Truth-Last-Modified', $responseHeaders)) |
410
|
|
|
{ |
411
|
|
|
if (empty($this->metadata)) |
412
|
|
|
{ |
413
|
|
|
$this->getMetadata(); |
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
if ($this->metadata['newBackend']) |
417
|
|
|
{ |
418
|
|
|
return 2.1; |
419
|
|
|
} |
420
|
|
|
|
421
|
|
|
return 2; |
422
|
|
|
} |
423
|
|
|
|
424
|
|
|
return 0; |
425
|
|
|
} |
426
|
|
|
} |
427
|
|
|
|
This check compares the return type specified in the
@return
annotation of a function or method doc comment with the types returned by the function and raises an issue if they mismatch.