I am using the "elastica" php client for ElasticSearch.
I'm a bit new to OO-programming, especially in php.
However, I have managed to search my elasticsearch server using the elastica php client and store the response in an "Elastica_ResultSet" object. I have had no luck accessing the contents of that object whatsoever.
I would like to be able to list the total number of results, find an elasticsearch record id of a result and get the full content of an elasticsearch record for that result.
The Elastica class reference can be found here http://ruflin.github.com/Elastica/api/index.html , although I don't know what to do with it.
Here is the php code I have been using to get this far:
<?php
function __autoload_elastica ($class) {
$path = str_replace('_', '/', $class);
if (file_exists('extentions/' . $path . '.php')) {
require_once('extentions/' . $path . '.php');
//echo "$path EXISTS!!!";
}
}
spl_autoload_register('__autoload_elastica');
// New ES Client
$client = new Elastica_Client();
// Set Index
$index = $client->getIndex('test1');
// Set Document Type
$type = $index->getType('user');
// Perform Search
$resultSet = $index->search('halo');
?>
So basicaly you can use var_export to output your resultset
But in general the elastica search returns a Elastica_ResultSet object which has several attributes you can use like count, totalHits facets and so on.
and also holds an array of Elastica_Result objects these can be accessed either by calling the Elastica_ResultSet getResults() method or by using the current() and next() methods or by simply using the php foreach function
The Elastica_Result the data of the results and also has several methods you can use.
getId(), getVersion(), getData() and so on.
// Set Document Type
$type = $index->getType('user');
// Perform Search
$resultSet = $index->search('halo');
// Get IDs
$resultIDs = array();
foreach($resultSet as $result){
$resultIDs[] = $result->getId();
}
I would like to let you know something that was a bit hard for me to get.
The query and the sorting of results
// Set the query terms for your search
$queryTerm = new Elastica_Query_Terms();
$queryTerm->setTerms('user', array("test", "test1"));
// Create the sorting array
$sort = array("user" => array("order" => "desc"));
// Create the query
$query = Elastica_Query::create($queryTerm);
// Set the sorting to the query
$query->setSort($sort);
// Perform the search
$resultSet = $index->search($query);
Hope this helps
After a couple of months OO practise, it seemed performing a simple var_dump($resultSet) would have provided me with the structure and contents of the returned object... can't believe that nobody made any suggestions for such a basic question ;)
Related
When i use the following php code with the 2016 Netsuite toolkit to retrieve an invoice, the returned object has the properties amountPaid & amountRemaining but they are both Null. Why are they not showing the values they should be, why include them if only always empty, and whats the best way around this ?
$search = new TransactionSearchBasic();
$SearchLongField = new SearchLongField();
$SearchLongField->searchValue = $internalId;
$SearchLongField->operator = "equalTo";
$search->internalIdNumber = $SearchLongField;
$_csearch = new RecordRef();
$_csearch->type = 'customer';
$_csearch->internalId = $customerId;
$custSearchField = new SearchMultiSelectField();
$custSearchField->searchValue[] = $_csearch;
$custSearchField->operator = "anyOf";
$search->entity = $custSearchField;
$request = new SearchRequest();
$request->searchRecord = $search;
$searchResponse = $this->service->search($request);
$result = json_decode(json_encode($searchResponse), true);
// Return results
return $result;
So though I have not received any outside responses yet, after further research and experimentation Ive come tho the belief that NS will return a full object structure for each data type whether all the properties (keys) are set or not.
And in the case of TransactionSearchBasic and other SearchBasic extensions it only returns a 'basic' subset of common fields used, the others just have Null as their value.
To get these extra data fields populated you have to request them with TransactionSearchAdvanced, and either a saved search or using the columns field. The flip side of this is as far as i can tell, you have to specify all columns you want, there's no way to just add a few extra fields to a Basic search.
NS API documentation is almost non-existent, but i work off this:
http://www.netsuite.com/help/helpcenter/en_US/srbrowser/Browser2016_2/schema/search/transactionsearchadvanced.html?mode=package
and recently found this:
https://usergroup.netsuite.com/users/
I am working PHP MongoDB. I am looking for a way to search for a list of documents and find the bsonsize of them in one value. The code below only calculates a single document size. Even if I use Object.bsonsize(db.{$collectionName}.find(), it only gets the cursor right? Is there any way to calculate this without iterating the cursor?
Iterating the cursor to do this is too slow.
Thanks
function documentSizeChecker($collectionName,Array $Criteria){
$connection = db_connect();
$jsonCriteria = json_encode($Criteria);
$code = "function(){
return Object.bsonsize(db.{$collectionName}.findOne({$jsonCriteria}))
}";
$resp = $connection->execute($code);
return $resp["retval"];
}
Im trying to create a rest api in slim.php. What i want is actually just two function. one for retrieving all records from a table as JSON. and one for retrieving a record by its ID.
This far my index/api file looks like this below. Now how do i connects do the database? How do i return it as json?
<?php
require 'Slim/Slim.php';
\Slim\Slim::registerAutoloader();
$app = new \Slim\Slim();
$app->get(
'/',
function () {
echo "hola!";
}
);
$app->run();
I have manage to get something going. I get the result back, but not as pure json. I can't see it as son in the console. Even tjo it gets written out in the browser. Current code:
$app->get('/', function () {
$db = connect_db();
$result = $db->query( 'SELECT * FROM test;' );
while ( $row = $result->fetch_array(MYSQLI_ASSOC)){
$data[] = $row;
}
echo json_encode($data);
});
A restfull route will look something like :
api/resources // to get all records
api/resources/{id} // to get a specific record
If you're using MVC architecture then in your controller you'll have two methods, one to get all records and the other to get a specific record. I'm not sure which interface Slim implements to connect to database but you can google it.
to return your result as json, you can use PHP's built-in function json_encode :
// $result = SQL query
return json_encode($result);
And I think you should think about paginating your recovered data, because returning a big number of data as json is not a good practice.
Good luck.
I have made a small script which uses the Twitch API. The API only allows a maximum of 100 results per query. I would like to have this query carry on until there are no more results.
My theory behind this, is to run a foreach or while loop and increment the offset by 1 each time.
My problem however, is that I cannot change the foreach parameters within itself.
Is there anyway of executing this efficiently without causing an infinite loop?
Here is my current code:
<?php
$newcurrentFollower = 0;
$offset=0;
$i = 100;
$json = json_decode(file_get_contents("https://api.twitch.tv/kraken/channels/greatbritishbg/follows?limit=25&offset=".$offset));
foreach ($json->follows as $follow)
{
echo $follow->user->name . ' (' . $newcurrentFollower . ')' . "<br>";
$newcurrentFollower++;
$offset++;
$json = json_decode(file_get_contents("https://api.twitch.tv/kraken/channels/greatbritishbg/follows?limit=25&offset=".$offset));
}
?>
Using a While loop:
while($i < $total)
{
$json = json_decode(file_get_contents("https://api.twitch.tv/kraken/channels/greatbritishbg/follows?limit=25&offset=".$offset));
echo $json->follows->user->name . ' (' . $newcurrentFollower . ')' . "<br>";
$newcurrentFollower++;
$offset++;
$i++;
}
Ends up echoing this (No names are successfully being grabbed):
Here is the API part for $json->follows:
https://github.com/justintv/Twitch-API/blob/master/v2_resources/channels.md#get-channelschannelfollows
You can use this:
$offset = 0;
$count = 1;
do {
$response = json_decode(file_get_contents(
'https://api.twitch.tv/kraken/channels/greatbritishbg/follows?limit=100&offset=' . $offset
));
foreach($response->follows as $follow) {
echo $follow->user->name . ' (' . ($count++) . ')' . "</br>";
}
$offset+=25;
} while (!empty($response->follows));
You want to use a while loop here, not just a foreach. Basically:
while (the HTTP request returns results)
{
foreach ($json->follows as $follow)
{
do stuff
}
increment offset so the next request returns the next one not already processed
}
The trickiest part is going to be getting the while condition right so that it returns false when the request gets no more results, and will depend on what the API actually returns if there are no more results.
Also important, the cleanest way would be to have the HTTP request occur as part of the while condition, but if you need to do some complicated computation of the JSON return to check the condition, you can put an initial HTTP request before the loop, and then do another request at the end of each while loop iteration.
The problem is you're only capturing the key not the value. Place it into a datastructure to access the information.
Honestly I find a recursive function much more effective than a iterative/loop approach then just update a datatable or list before the next call. It's simple, uses cursors, lightweight and does the job. Reusable if you use generics on it too.
This code will be in c#, however I know with minor changes you'll be able to get it working in php with ease.
query = //follower object get request//
private void doProcessFollowers(string query)
{
HTTPParse followerData = new HTTPParse(); //custom json wrapper. using the basic is fine. Careful with your cons though
var newRoot = followerData.createFollowersRoot(query); // generates a class populated by json
if (newRoot[0]._cursor != null)
{
populateUserDataTable(newRoot); //update dataset
doProcessFollowers(newRoot[0]._links.next); //recurse
}
}
Anyway - This just allows you to roll through the cursors without needing to worry about indexes - unless you specifically want them for whatever reason. If you're working with generics you can just reuse this code without issue. Find a generic example below. All you need to do to make it reuseable is pass the correct class within the <> of the method call. Can work for any custom class that you use to parse json data with. Which is basically what the 'createfollowerroot()' is in the above code, except that's hard typed.
Also I know it's in c# and the topic is php, with a few minor changes to syntax you'll get it working easily.
Anyway Hope this helped somebody
Generic example:
public static List<T> rootSerialize<T>(JsonTextReader reader)
{
List<T> outputData = new List<T>();
while (reader.Read())
{
JsonSerializer serializer = new JsonSerializer();
var tempData = serializer.Deserialize<T>(reader);
outputData.Add(tempData);
}
return outputData;
}
I'm building a script that takes the contents of several (~13) news feeds and parses the XML data and inserts the records into a database. Since I don't have any control over the structure of the feeds, I need to tailor an object operator for each one to drill down into the structure in order to get the information I need.
The script works just fine if the target node is one step below the root, but if my string contains a second step, it fails ( 'foo' works, but 'foo->bar' fails). I've tried escaping characters and eval(), but I feel like I'm missing something glaringly obvious. Any help would be greatly appreciated.
// Roadmaps for xml navigation
$roadmap[1] = "deal"; // works
$roadmap[2] = "channel->item"; // fails
$roadmap[3] = "deals->deal";
$roadmap[4] = "resource";
$roadmap[5] = "object";
$roadmap[6] = "product";
$roadmap[8] = "channel->deal";
$roadmap[13] = "channel->item";
$roadmap[20] = "product";
$xmlSource = $xmlURL[$fID];
$xml=simplexml_load_file($xmlSource) or die(mysql_error());
if (!(empty($xml))) {
foreach($xml->$roadmap[$fID] as $div) {
include('./_'.$incName.'/feedVars.php');
include('./_includes/masterCategory.php.inc');
$test = sqlVendors($vendorName);
} // end foreach
echo $vUpdated." records updated.<br>";
echo $vInserted." records Inserted.<br><br>";
} else {
echo $xmlSource." returned an empty set!";
} // END IF empty $xml result
While Fosco's solution will work, it is indeed very dirty.
How about using xpath instead of object properties?
$xml->xpath('deals/deal');
PHP isn't going to magically turn your string which includes -> into a second level search.
Quick and dirty hack...
eval("\$node = \"\$xml->" . $roadmap[$fID] . "\";");
foreach($node as $div) {