I have two tables users and cars, the cars has a column owner that is the id of an user and I need to join them. Both users and cars has a column called name and it's overriding. I want to keep both but with different names, like car_name and user_name on the return.
Here is how I'm doing:
$columns = [
DB::raw('cars.name as car_name')
];
$cars = Cars::join('users', 'users.id', '=', 'cars.owner')->get($columns);
It works if I try to print car_name but it still overriding the name and if I print name it still returns the name of the user instead of the car.
Is there a way for doing this right?
You can use the select() clause directly in your query.. no need to use DB::raw():
$cars = Cars::join('users', 'users.id', '=', 'cars.owner')
->select('*','cars.name as car_name')
->get();
The problem with this is that you will end up with a repeated column as you are asking the DB for everything, plus the field with a new name. That may not be a problem for you, but might be better to specify explicitly the fields you want to select:
$cars = Cars::join('users', 'users.id', '=', 'cars.owner')
->select('users.name as user_name','cars.name as car_name', 'whatever_else')
->get();
I don't think you can do what you want with gets - but you can with select. This should hopefully work:
$columns = [
'*',
'users.name as user_name',
'cars.name as car_name'
];
$cars = Cars::join('users', 'users.id', '=', 'cars.owner')->select($columns)->get();
Related
Say I have 3 tables in my database.
'my_recipe', 'my_inventory' and 'ingredient'.
The 'my_recipe' table stores a list of raw_id's based on the 'ingredient' table and the 'quantity' need for the recipe. The 'my_inventory' table stores a list of raw_id's and 'have_quantity'.
So let's take a look at what I currently have at the moment. I have the following 2 queries:
First Query:
$recipe = DB::table('my_recipe as tA')
->leftJoin('ingredient as tB', 'tA.raw_id', '=', 'tB.raw_id')
->select('tA.user as user', 'tA.raw_id as raw_id', 'tA.quantity as quantity',
'tB.ingredient_name as ingredient_name')
->where('user', '=', $user)
->where('raw_id', '=', $raw_id)
->get();
Second Query:
$inventory = DB::table('my_inventory as tA')
->leftJoin('ingredient as tB', 'tA.raw_id', '=', 'tB.raw_id')
->select('tA.user as user', 'tA.have_quantity as have_quantity',
'tB.ingredient_name as ingredient_name')
->where('user', '=', $user)
->get();
The first query returns results that look something like this:
{"user":"jack","raw_id":"853","quantity":2,"ingredient_name":"apple"},
{"user":"jack","raw_id":"853","quantity":4,"ingredient_name":"peach"}
The second query returns results that look something like this:
{"user":"jack","have_quantity":30,"ingredient_name":"apple"},
{"user":"jack","have_quantity":20,"ingredient_name":"apple"},
{"user":"jack","have_quantity":10,"ingredient_name":"apple"},
{"user":"jack","have_quantity":1,"ingredient_name":"peach"},
{"user":"jack","have_quantity":1,"ingredient_name":"peach"}
Notice in the second query results I have to get the sum of the ingredients based on the 'ingredient_name' for my ideal output.
How can I get my ideal output in a single query?
My ideal output would look something like this:
{"user":"jack","raw_id":"853","quantity":2,"ingredient_name":"apple","have_quantity":60},
{"user":"jack","raw_id":"853","quantity":4,"ingredient_name":"peach","have_quantity":2}
It's basically the results of the first query with 'have_quantity' totals from the second query.
EDIT:
my_recipe Model:
'user', 'raw_id', 'quantity'
my_inventory Model:
'user', 'raw_id', 'have_quantity'
ingredient Model:
'raw_id', 'ingredient_name'
Note: In the ingredient model there can be rows with the same 'ingredient_name' but have different 'raw_id'.
Based on our chat conversation I managed to get some extra information on the table structure and what was needed to do to get the wanted results.
For those interested the information can be found here
Anyway I ended up creating the query like this:
SELECT
my_recipe.user AS user,
my_recipe.raw_id AS raw_id,
my_recipe.quantity AS quantity,
ingredient.ingredient_name AS ingredient_name,
IFNULL(SUM(my_inventory.have_quantity),0) AS have_quantity
FROM my_recipe
LEFT JOIN ingredient USING(raw_id)
LEFT JOIN ingredient AS ingredients USING(ingredient_name)
LEFT JOIN my_inventory ON my_inventory.raw_id = ingredients.raw_id
WHERE my_recipe.recipe_id = 853
AND my_recipe.user = 'jack'
AND my_inventory.user = 'jack'
GROUP BY ingredient_name;
Now converting into the needed structure:
$inventory = DB::table('my_recipe')
->leftJoin('ingredient', 'my_recipe.raw_id', '=', 'ingredient.raw_id')
->leftJoin('ingredient AS ingredients', 'ingredient.ingredient_name', '=', 'ingredients.ingredient_name')
->leftJoin('my_inventory', 'my_inventory.raw_id', '=', 'ingredients.raw_id')
->select(DB::raw('my_recipe.user AS user,my_recipe.raw_id AS raw_id,my_recipe.quantity AS quantity,ingredient.ingredient_name AS ingredient_name,IFNULL(SUM(my_inventory.have_quantity),0) AS have_quantity'))
->where('my_recipe.recipe_id', '=', $recipe_id)
->where('my_recipe.user', '=', $user)
->where('my_inventory.user', '=', $user)
->groupBy('ingredient_name')
->get();
Maybe this can solve you problem
//replace count by sum
$inventory = DB::table('my_inventory as tA')
->leftJoin('ingredient as tB', 'tA.raw_id', '=', 'tB.raw_id')
->leftJoin('my_recipe as tC', 'tC.raw_id', '=', 'tB.raw_id')
->select(DB::raw('tA.user as user, tB.ingredient_name as ingredient_name, SUM(tA.have_quantity) have_quantity'))
->where('user', '=', $user)
->groupBy('tB.ingredient_name, tA.user')
->get();
Let's try this:
$result = DB::table('ingredient as ing')
->rightJoin('my_recipe as rcp', 'ing.raw_id', '=', 'rcp.raw_id')
->rightJoin('my_inventory as inv', 'ing.raw_id', '=', 'inv.raw_id')
->select(DB::raw('
rcp.user as user,
ing.ingredient_name as ingredient_name,
rcp.have_quantity quantity,
SUM(inv.have_quantity) have_quantity
'))
->where('rcp.user', '=', $user)
->where('rcp.raw_id', '=', $raw_id)
->groupBy('rcp.user, ing.ingredient_name')
->get();
Here's my situation I have joined tables but the problem is some of those columns have the same name from other tables. What I want to know is how I can prevent this from happening. The columns that have the same name are created_at but I only want to use methods' table created_at (methods.created_at). Here is my code to explain my situation better
$filtered_table = Method::leftJoin('users', 'users.id', '=', 'methods.created_by')
->leftJoin('roles', 'roles.id', '=', 'users.role_id')
->leftJoin('types', 'types.id', '=', 'methods.type_id')
->where($request->filters)//will act as a searchmap
->get([ 'users.username', 'users.id AS users_id', 'methods.*', 'methods.id AS method_id', 'methods.name AS method_name', 'roles.id AS role_id', 'roles.name AS role_name',
'types.id AS type_id_typetable', 'types.name AS type_name']);
notice how ->where is an array of objects, I am using it as a searchmap for the clause. But my problem is like what I said above that the tables has the same name on some columns like for example created_at, the other columns doesn't matter since I am not using it.
The question is how do I explicitly tell the query that I am using the methods.created_at when I am searching it through the searchmap (In this case, $request->filters['created_at']. Please, let me know if you need any more details.
EDIT
if($("#date_select_off").val() == "daily") {
let day = $("#day_date").val();
filter_list.created_at = day;
}
in this code in jquery I am naming the key the same as the column so that I can use it as parameter in the php query. But my like my initial problem I simply can't name it filter_list.methods.created_at any help with this is greatly appreciated.
EDIT 2
How would I use a 'LIKE' query to that particular key value pair?
->where($request->filters)//will act as a searchmap
->orWhere('methods.created_at', 'LIKE', $request->filters['methods.created_at'])
I tried doing this but it is just wrong since the key value pair is already hitting on the first where clause.
EDIT 3
It could use some improvements but yeah
$filtered_table = Method::leftJoin('users', 'users.id', '=', 'methods.created_by')
->leftJoin('roles', 'roles.id', '=', 'users.role_id')
->leftJoin('types', 'types.id', '=', 'methods.type_id')
->where($request->filters)//will act as a searchmap
->orWhere('methods.created_at', 'LIKE', '%' . $request->filters['methods.created_at'] . '%')
->get([ 'users.username', 'users.id AS users_id', 'methods.id AS method_id', 'methods.name AS method_name', 'methods.created_at AS method_created_at', 'roles.id AS role_id', 'roles.name AS role_name',
'types.id AS type_id_typetable', 'types.name AS type_name']);
Change your model class as per your requirements to specify what columns you want selected:
public function someModel() {
return $this->belongs_to('otherModel')->select(array('id', 'name'));
}
In this case pass the fully qualified column name in where clause like:
->where('methods.created_at', '=', $request->filters)
or create a table alias and use the alias like:
SELECT col from methods as t1,
...
WHERE t1.col = 'some value';
I need to select a table which contains id, name and some more. Now i want to select everything, but just change the column name 'name' to 'user_name'. How can i do this without selecting and declaring everything?
I tried it like this, but this is not working.
return $query
->select(
'user.*',
'user.name as user_name'
)
Your issue starts from your joins. Because you join without aliasing, then the second one overwrites the first. I give you a sample query to show how you can alias your joined table, and thus alias the 'name' from the second table. Sample code:
$query = DB::table('users')
->leftjoin('users as child', 'users.id', '=', 'users.parent_id')
->select('users.*', 'child.name as child_name')
->get();
I have two tables: a relationship table and a users table.
Relationship table looks like: 'user_one_id', 'user_two_id', 'status', 'action_user_id'.
Users table looks like: 'id', 'username'.
I would like to query the relationship table first and return an array of all the rows where the 'status' column = 0.
Then I would like to query the users table and return an array of ids and usernames where 'user_one_id' matches 'id'.
My code so far:
public function viewRequests()
{
$currentUser = JWTAuth::parseToken()->authenticate();
$friendRequests = DB::table('relationships')
->where('user_two_id', '=', $currentUser->id)
->where('status', '=', '0')
->get();
$requestWithUsername = DB::table('users')
->where('id', '=', $friendRequests->user_one_id)
->get();
return $requestWithUsername;
}
It's not working and I'm not sure what method is easiest to reach my desired output. How can I change these queries?
EDIT:
After reviewing the response, this is the working code:
$friendRequests = DB::table('users')
->select('users.id','users.username')
->join('relationships', 'relationships.user_one_id','=','users.id')
->where('relationships.status','=',0)
->where('relationships.user_two_id', '=', $currentUser->id)
->get();
Your SQL seems to be this:
SELECT id, username
FROM users
JOIN relationships
ON relationships.user_one_id = id
WHERE relationships.status = 0
Then the Laravel way:
DB::table('users')
->select('id','username')
->join('relationships', 'relationships.user_one_id','=','id')
->where('relationships.status','=',0)
->get();
I'm trying to fetch following things from the database:
user name
user avatar_name
user avatar_filetype
complete conversation_messages
with the following query:
static public function getConversation($id)
{
$conversation = DB::table('conversation_messages')
->where('belongsTo', $id)
->join('users', 'conversation_messages.sender', '=', 'users.id')
->join('user_avatars', 'conversation_messages.sender', '=', 'user_avatars.id')
->select('users.name', 'conversation_messages.*', 'user_avatars.name', 'user_avatars.filetype')
->get();
return $conversation;
}
It works fine so far, but the avatar's column name is 'name' like the column name from the 'users' table.
So if I'm using this query the to get the output via $conversation->name, the avatar.name overwrites the users.name
Is there a way to rename the query output like the mysql "as" feature at laravel 5.1?
For example:
$conversation->avatarName
$conversation->userName
Meh okay.. i've found a simple solution here
->select('users.name as userName', 'conversation_messages.*', 'user_avatars.name as avatarName', 'user_avatars.filetype')
As you can mention I've added the requested "as-Feature" next to the table.columnName
Take a look at this example of trying to join three tables staffs, customers and bookings(pivot table).
$bookings = \DB::table('bookings')
->join('staffs', 'staffs.id' , '=', 'bookings.staff_id')
->join('customers', 'customers.id' , '=', 'bookings.customer_id')
->select('bookings.id', 'bookings.start_time', 'bookings.end_time', 'bookings.service', 'staffs.name as Staff-Name', 'customers.name as Customer-Name')
->orderBy('customers.name', 'desc')
->get();
return view('booking.index')
->with('bookings', $bookings);
I had the following problem, simplified example:
$result = Donation::join('user', 'user.id', '=', 'donation.user_id')->where('user.email', 'hello#papabello.com')->first();
$result is a collection of Donation models. BUT CAREFUL:
both tables, have a 'created_at' column. Now which created_at is displayed when doing $result->created_at ? i don't know. It seems that eloquent is doing an implicit select * when doing a join, returning models Donation but with additional attributes. created_at seems random. So what I really wanted, is a return of all Donation models of the user with email hello#papabello.com
solution is this:
$result = Donation::select('donation.*')->join('user', 'user.id', '=', 'donation.user_id')->where('user.email', 'hello#papabello.com')->first();
Yeah, simply rename the column on either table and it should work.
Also what you can do is, rename the user.name column to anything, also rename sender column of conversation_messages to id and perform a natural join.