PHP convert functions to MongoDB - php

Question

Im trying to convert some of my PHP functions to mongodb, but cant figure it out, could someone help me out?
PHP function applications:
function applications($gangId) {
$applications = $this->db->query("SELECT * FROM `gang_applications` where `status`='avaliable' and `gangid`='$gangId'");
return ($applications ? $applications : false);
}
my attempt on function applications:
gangshema.methods.applications(thisid) {
// some sort of callback?
db.gang_applications.find({status:avaliable, gangid: thisid}, function(err, cursor) {
if (cursor != 0) {
console.log(cursor);
}
});
}
PHP function application_done
function application_done($applicationId) {
$applications = $this->db->query("SELECT * FROM `gang_applications` where `id`='$applicationId'")->row();
return ($applications->status == 'avaliable' ? false : true);
}
my attempt on function application_done
gangshema.methods.application_done(applicationid) {
db.gang_applications.find({id:applicationid}, function(err,cursor) {
// return ($applications->status == 'avaliable' ? false : true);
});
}
but my main consern is a function called accept_applications. I have no clue on how to do this part, including calling other functions for their response.
function accept_application($userid,$applicationId) {
$box = 'failure';
if (empty($applicationId)) {
$message = "applicationId is empty";
} elseif ($this->application_done($applicationId)) {
$message = "Already registred!";
} else {
$application = $this->getApplication($applicationId);
$test = true;
if(!($test)) {
$message = "false test";
} else {
$this->db->query("UPDATE `gang_applications` SET `status`='accepted', `by`='$userid' where `id`='$applicationId'");
$this->gangs->add_member($application->userid,'gang','member',$application->gangid);
$message = "Accept!";
}
}
return $message;
}

Answer 1

Using this at the beginning of the Node.js script:
var MongoClient = require('mongodb').MongoClient;
var url = 'mongodb://localhost:27017/test';
First snippet:
function applications($gangId) {
$applications = $this->db->query("SELECT * FROM `gang_applications` where `status`='avaliable' and `gangid`='$gangId'");
return ($applications ? $applications : false);
}
becomes:
var findApplications = function(db, gangId) {
var cursor = db.collection('gang_application').find({
"status": "available"
"gangId": gangId
});
var results = [];
cursor.each(function(err, doc) {
if (err) console.log("Error: " + err);
} else if (doc != null) {
console.log("Null document.");
} else {
results.push(doc);
}
});
return results;
};
Second snippet:
function application_done($applicationId) {
$applications = $this->db->query("SELECT * FROM `gang_applications` where `id`='$applicationId'")->row();
return ($applications->status == 'avaliable' ? false : true);
}
becomes:
function applications(gangId) {
db.gang_application
}
var applicationsDone = function(db, applicationId) {
var cursor = db.collection('gang_application').find({
"id": applicationId
});
var results = [];
cursor.each(function(err, doc) {
if (err) {
console.log("Error: " + err);
} else if (doc != null) {
console.log("Null document.");
} else {
results.push(doc.status);
}
});
return results;
};
Call both as follows:
MongoClient.connect(url, function(err, db) {
if (!db) {
console.log("Database did not connect.");
}
else {
findApplications(db, "102"); // Replace "102" with gangId
applicationsDone(db, "104"); // Replace "104" with applicationId
}
});
EDIT per comments, here's how to include a callback:
// Note extra `callback` parameter
var applicationsDone = function(db, applicationId, callback) {
var cursor = db.collection('gang_application').findOne({
"id": applicationId
});
cursor.each(function(err, doc) {
if (err) {
console.log("Error: " + err);
} else if (doc != null) {
console.log("Null document.");
} else {
return (doc.status == "available");
}
});
};
To call:
MongoClient.connect(url, function(err, db) {
if (!db) {
console.log("Database did not connect.");
}
else {
var callback = function(doc) { console.log(doc.status); };
applicationsDone(db, "104", callback);
}
});
EDIT Third snippet:
function accept_application($userid, $applicationId) {
$box = 'failure';
if (empty($applicationId)) {
$message = "applicationId is empty";
} elseif ($this->application_done($applicationId)) {
$message = "Already registred!";
} else {
$application = $this->getApplication($applicationId);
$test = true;
if(!($test)) {
$message = "false test";
} else {
$this->db->query("UPDATE `gang_applications` SET `status`='accepted', `by`='$userid' where `id`='$applicationId'");
$this->gangs->add_member($application->userid,'gang','member',$application->gangid);
$message = "Accept!";
}
}
return $message;
}
becomes this. Note some changes to the functions above to get this to work, such as returning an array of documents from applications, and using .findOne() for applicationDone():
function acceptApplication(userId, applicationId) {
if (!applicationId) return "No application ID";
if (applicationDone(db, applicationId)) return "Application already submitted.";
// Left out `if (!$test)`
db.gang_applications.update({
"id": applicationId,
"userId": userId
}, {
"status": "accepted"
}, upsert: false);
// $this->gangs->add_member($application->userid,'gang','member',$application->gangid);
return "Accepted!";
}