is there a way to make a laravel trigger for this sql command? sorry I am new to laravel and having a hard time figuring it out.
So what should happen is when the table.a get its content, it will automactically fill the column with ids from the other table. is it possible for laravel? Thank you so much.
UPDATE table_a
INNER JOIN table.b ON table_a.account_code =
table.ac_code
SET table_a.ut_id = table.ut_id, table_a.pj_id
= table.pj_id
I used to use laravel event for trigger stuff in laravel (it assumes you have models on this). In your to be listened Model_B (table_b), you can define something like :
public function boot()
{
parent::boot();
static::created(function ($model) {
/*update table a here*/
$ut_id = $model->ut_id;
$pj_id = $model->pj_id;
Table_A::customUpdate($ut_id, $pj_id);
});
}
Please define your public customUpdate( ) as you want.
Check laravel doc above to see other possibilities for boot methods: creating, created, updating, updated, saving, saved, deleting, deleted, restoring, restored
Related
I want to store in my database all the user actions done about an entity.
For example, for 1 entity, I want to store :
Created by (= author)
Updated by
Date of creation
Date of update
I want to store the history of the actions of a user, not the last ones. I thought I could create a table with these columns :
log_id
user_id
entity_id
action (= "create" or "update" or something else)
date
And then, I could easily get the last update of my entity and display the date and the user who did it.
Is there a Symfony bundle to do this ? Should I use Monolog ?
I will do this for many entities and I'm not sure if this is the correct way to do...
Is it possible to create only one logs table to store each log about each entity ? It bothers me to create 1 logs table per entity.
Since Doctrine is event based, it's easy:
Either use an extension, like Gedmo Loggable
Or hook into Doctrine's events and log, using Monolog, everything that happens in your app.
Personally I would prefer option 2 since I'm a control maniac, it's a little more complex though. Personally I would also use Monolog so I could abstract away the way how and where the log entries are stored.
When you decide how to approach this and you will need any assistance along the way, please ask another question.
Good luck.
I don't know if that would fit what you need, but you could easily add a Listener to the symfony kernel to log every controller used.
Something like this :
class UserLogListener {
protected $authChecker;
protected $tokenStorage;
protected $entityManager;
public function __construct(TokenStorageInterface $tokenStorage, AuthorizationChecker $authChecker, EntityManager $entityManager)
{
$this->authChecker = $authChecker;
$this->tokenStorage = $tokenStorage;
$this->entityManager = $entityManager;
}
public function onKernelRequest(GetResponseEvent $event)
{
if( $this->tokenStorage->getToken() != null){
$user = $this->tokenStorage->getToken()->getUser();
$currentDate = new \Datetime();
$action = $event->getRequest()->attributes->get('_controller');
$method = $event->getRequest()->getMethod();
$userIp = $event->getRequest()->getClientIp();
$userLogRepository = $this->entityManager->getRepository(UserLog::class);
if($user instanceof User){
$userLog = new UserLog();
$userLog->setUser($user);
$userLog->setIp($userIp);
$userLog->setAction($action);
$userLog->setMethode($method);
$userLog->setDate($currentDate);
if($event->getRequest()->request && $methode=='POST'){
$userLog->setData(json_encode($event->getRequest()->request->all()));
}else{
$userLog->setData($event->getRequest()->getPathInfo());
}
$this->entityManager->persist($userLog);
$this->entityManager->flush();
}
}
}
}
What it does is add to the database (with an entity called UserLog) information about every page called. So you can know which action is made by knowing which controller is called, and you can also log the request data so you can find out what modification/creation the user did.
I have two table witch named users & Inbox
In the Inbox table I have a column named sender_id that have the user_id of the sender
I want to show this message in the view. I need a query to get the sender_id from the inbox table and use that to select a certain user from the users table
I need to do this with all messages and all users.
Laravel is basicly straith foward when you use eloquent. You can always customise it.
First, almost all the time, I create a model and a migration at the same time using this : php artisan make:model Something --migration
I know you already make some models and/or migrations, but I'll go step by step to help you understand it.
So, in your case, it'll be php artisan make:model User --migration and php artisan make:model Inbox --migration. Doing this, you get two model named User and Inbox and two migration named date_create_users_table.php and date_create_inboxs_table.php. Maybe you already did the default user table with php artisan make:auth. If it's the case, don't remake one.
I'm not sure about how laravel will name the Inbox model migration... Since, I think, Laravel 5.3, the plurialisation changed and don't always just add an "S" at the end.
Then, now you got your models and migrations, let's add some line into your migration files. Since you want to do a one to many relationship. You don't need to touch the user one. Only the Inbox migration. Each Inbox is related to one User and Users can have many Inboxs. Add something like this in your migration:
public function up()
{
Schema::create('inboxs', function (Blueprint $table) {
$table->increments('id');
$table->integer('user_id');
$table->foreign('user_id')->references('id')->on('users');
all other columns...
});
}
There, you can change the column's name if you need to have a sender, a recipient, etc... Do this instead :
public function up()
{
Schema::create('inboxs', function (Blueprint $table) {
$table->increments('id');
$table->integer('sender_id');
$table->foreign('sender_id')->references('id')->on('users');
$table->integer('recipient_id');
$table->foreign('recipient_id')->references('id')->on('users');
all other columns...
});
}
What we just did, it's creating the Foreign key that Laravel will use to build the query. There is one last part before the fun one. We need to create the relation in our Model. Begin with the user one:
App/User.php
public function inboxs() {
return $this->hasMany(Inbox::class);
}
And now into the App/Inbox.php model:
public function user() {
return $this->belongsTo(User::class);
}
If you need to have a Sender/Recipient/etc... go this way instead:
public function sender() {
return $this->belongsTo(User::class);
}
public function recipient() {
return $this->belongsTo(User::class);
}
Note that each of your function need to be writen in the same way it's into your migration. sender_id need a relation named sender().
Now, that our relations are done, we can simply call everything using eloquent.
$inboxs = Inbox::with('sender')->get();
This will return an array of all your Inbox into the inboxs table. You can access the sender this way: $inboxs[0]->sender();
You need the id, do this: $sender_id = $inboxs[0]->sender_id;
The sender name : $sender_name = $inboxs[0]->sender->name;
If you want to get one Inbox and you have the id, just do this $inbox = Inbox::with('sender')->find($id);
This way you don't get an array, only one result and can access the sender directly using $sender_name = $inbox->sender->name; instead of having to add [0] or using a foreach loop.
You can get all messages sended by a user using something like this:
$inboxs = Inbox::where('sender_id', $sender_id)->get();
Finally, you can pass your data to the view using:
return view('path.to.view')->with('inbox',$inbox);
Into the view you do this to show the sender's name:
//If view.blade.php
{{$inbox['sender']['name']}} //work a 100%
{{$inbox->sender->name}} //I'm not sure about this one
//If not using blade
<?php echo $inbox['sender']['name']; ?>
There is a lot of thing you can do using Eloquent and you can add as much condition you want. The only thing I suggest you to really do if you want to use Eloquent, be aware about the n+1 problem. There is a link where I explain it. Look for the EDIT section of my answer.
If you need some documentation:
Laravel 5.3 Relationships
Laravel 5.3 Migrations
Laravel 5.3 Eloquent
I think you should update your code like:
$user_messages = DB::table('messages')
->select('messages.id as msgId','messages.message as message','users.id as userId','users.user_name as user_name')
->join('messages','messages.user_id','=','users.id')
->where('messages.user_id',$user_id)
->get();
return view("view.path")
->with('messages',$user_messages);
Hope this work for you!
In Model :
namespace App;
use Illuminate\Database\Eloquent\Model;
class Messages extends Model
{
protected $table = 'table_name';
public function sender()
{
return $this->belongsTo('App\User', 'sender_id', 'id');
}
}
In Controller :
public function functionName($user_id){
$messages = Messages::where('sender_id', $user_id)->get();
return view("view.path")
->with('messages',$messages);
}
In view, you can access seder details like this $message->sender->name for name for id $message->sender->id
I'm creating an online tool for companies that each have a set of users in Laravel.
When a user is connected, he has a $connected_company_id variable
For every SELECT request (called by ::all(), find(), ...), i would like to add the condition: where company_id = $connected_company_id. I have found this post: laravel set an automatic where clause, but it doesn't work by overriding newQuery().
For every INSERT request, i would like to add the company_id.
Is this possible without changing my code inside all the controllers ?
I thought about extending Eloquent with customEloquent, and then make my models extend customEloquent, but I don't know how to write the code for customEloquent and if it could work.
Well, you could make use of the Eloquent Model Events. I assume you have the connected_company_id stored in the Session company_id
class BaseModel extends Eloquent{
public static function boot(){
parent::boot();
//Column to inject when inserting
static::creating(function ($obj){
$obj->company_id = Session::get('company_id');
});
//Column to inject when updating
static::updating(function ($obj){
$obj->company_id = Session::get('company_id');
});
}
}
You can extend the BaseModel class on all the models that you want the company_id to be inserted or updated. Take a look at Eloquent Model Events for more information.
The above code will automatically insert or update the company_id to the model that you extend the BaseModel to. When you do a Model::all() or Model::get(), you automatically get the company_id on that Model and you can also perform searches as you requested on Point `
Hope this helps.
well, you can just add the company id to the find query.
Model::where("company_id","=",$company_id):
Or you can create a scope:
class theModel extends Eloquent {
static $company_id;
static for_company($company_id){
self::company_id=$company_id;
return __CLASS__;
}
public function scopeCompany($query)
{
return $query->where('company_id', '=', self::company_id);
}
}
//And later
$scope=theModel::for_company($company_id);
$res=$scope::company->where(...);
Disclaimer: I haven't tried this. Just a solution I constructed. Let me know if this works. This will not work under PHP 5.3
So the situation is that I am using Doctrine as the ORM for one of my projects.
Now I want to be able to track the changes happening on certain tables of my website without having to much extra coding for that.
For eg. I have a database which has many tables. out of that i have a table users on which I want to track the changes done
1. users has column name with value 'Raman'
2. Using update sql below i modify the row
update users set name = 'Raman Joshi' where name='Raman'
Is there any in built feature in doctrine that allows to create a log table tracking all the data level changes log that was done?
You can use a Doctrine preUpdate event listener to do this. Here's a simple example that will send changes to a logger:
use Psr\Log\LoggerInterface as Logger;
use Doctrine\ORM\Event\PreUpdateEventArgs;
class ChangeLoggerListener
{
protected $logger;
public function __construct(Logger $logger)
{
$this->logger = $logger;
}
public function preUpdate(PreUpdateEventArgs $eventArgs)
{
//find out class and id of object being updated
$obj=$eventArgs->getEntity();
$class=get_class($eventArgs->getEntity());
$id=$obj->getId();
$log="$class($id) updated: ";
//find out what has changed...
$changes=$eventArgs->getEntityChangeSet();
$separator='';
foreach ($changes as $field => $values) {
$log.=$separator."$field changed from {$values[0]} to {$values[1]}";
$separator=", ";
}
//send it to logger
$this->logger->info($log);
}
}
The manual page shows how to register the listener, but if you're using Symfony, you can register the listener as a service with this in your services.yml
my.change_logger:
class: My\ExampleBundle\Listener\ChangeLoggerListener
arguments: [#logger]
tags:
- { name: doctrine.event_listener, event: preUpdate }
I have a linq query to insert data in table. but its not working. I saw some example on internet tried to do like that but doesn't seems to work.
Tablename: login has 3 columns userid, username and password. I set userid as autoincrementing in database. So I have to insert only username and password everytime.Here's my code.
linq_testDataContext db = new linq_testDataContext();
login insert = new login();
insert.username = userNameString;
insert.Password = pwdString;
db.logins.Attach(insert);// tried to use Add but my intellisence is not showing me Add.I saw attach but dosent seems to work.
db.SubmitChanges();
have a look on http://www.codeproject.com/KB/linq/LINQToSQLBaseCRUDClass.aspx
linq_testDataContext db = new linq_testDataContext();
login insert = new login();
insert.username = userNameString;
insert.Password = pwdString;
db.logins. InsertOnSubmit(insert);
db.SubmitChanges();
If you Attach - It should attach to the particular object Context .But it wont reflect in database .If you want to insert any values try with InsertOnSubmit(object) and do
SubmitChanges() to save it in database
Attach() is the wrong method, you need to call InsertOnSubmit() to let Linq-To-Sql generate an insert statement for you. Attach() is for distributed scenarios, where your entity has not been retrieved via the same data-context that is used for submitting changes.
linq_testDataContext db = new linq_testDataContext();
login insert = new login();
insert.username = userNameString;
insert.Password = pwdString;
db.logins.InsertOnSubmit(insert);// tried to use Add but my intellisence is not showing me Add.I saw attach but dosent seems to work.
db.SubmitChanges();
Method to save employee details into Database.
Insert, Update & Delete in LINQ C#
Employee objEmp = new Employee();
// fields to be insert
objEmp.EmployeeName = "John";
objEmp.EmployeeAge = 21;
objEmp.EmployeeDesc = "Designer";
objEmp.EmployeeAddress = "Northampton";
objDataContext.Employees.InsertOnSubmit(objEmp);
// executes the commands to implement the changes to the database
objDataContext.SubmitChanges();