How to use Group by query in laravel? - database

Question

this is how the data is displayed but i want
Rhugveda desai -> flowers,Sarees,Prasad
In my application i need to use group by clause . But i am getting a syntax error.Also, What should i do if i want quantity column to be multiplied by amount to get the total? My tables are inkind and inkind_items, where inkind.id is foreign key in inkind_items table as inkind_id.
SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #11
of SELECT list is not in GROUP BY clause and contains nonaggregated
column
my inkind_items tabel is inkind_items
my inkind table is inkind
My query is:
$inkinds = DB::table('inkind')
->join('inkind_items', 'inkind.id', '=', 'inkind_items.inkind_id')
->select('inkind.*', 'inkind_items.*')
->groupBy('inkind_items.inkind_id')
->get();

Answer 1

Try using group_concat()
$inkinds = DB::table('inkind')
->join('inkind_items', 'inkind.id', '=', 'inkind_items.inkind_id')
->select('inkind.*', DB::raw('group_concat(inkind_items.name) as items'))
->groupBy('inkind_items.inkind_id')
->get();
Here I'm assuming inkind have field name and inkind_items has fields items.

Answer 2

You can use Laravel collection methods for that.
Just call:
$inkinds->groupBy('inkind_id');
after ->get(). Considering that inkind_id is unique column for both tables

Answer 3

Hi. You asked another question earlier today (about displaying an input when a particular checkbox is checked) but deleted it before I submitted my answer, so I thought I would paste the answer here instead:
Just to get you started, here is an explanation of how to use
addEventListener and createElement to achieve your desired result.
If any part of it is still unclear after studying the code and the
accompanying comments, please search for the name of the still-unclear function on
MDN.
(For example, https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName.)
// Sets `box1` to refer to the first element on the page with the class "box".
const box1 = document.getElementsByClassName("box")[0];
// Sets `container` to be the element whose id attribute has the value "container".
// (This is where our new input element, inside a new label element, will be added.)
const container = document.getElementById("container");
// Begins listening for clicks. From now on, whenever the user clicks anywhere
// on the page, our listener will call the `noticeClick` function.
document.addEventListener("click", noticeClick);
function noticeClick(event){
// Because this function's name is the second argument in
// the call to `document.addEventListener`, above, it is
// automatically called every time a 'click' event happens on the
// page (and it automatically receives that event as an argument.)
// The "target" of the event is whatever the user clicked on.
// So we set the variable `targ` to refer to this target, and we check whether:
// 1) the clicked target is our checkbox,
// 2) this click caused the checkbox to gain the "checked" attribute, and
// 3) we have not already given the checkbox the "added" class
const targ = event.target;
if(targ.id == "box1" && targ.checked && !targ.classList.contains("added")){
// If all three conditions are met, we...
// ...set two variables, `label` and `val`
const label = event.target.id;
const val = event.target.value;
// ...call the `createInput` function, passing these variables as its two arguments
createInput(label, val);
// ...give the checkbox the "added" class (so we can avoid accidentally adding it again)
targ.classList.add("added");
}
}
function createInput(newLabel, newValue){
// When the user has checked our checkbox, the `noticeClick` function
// will call this function, which receives two arguments (which we can
// see, by examining the `noticeClick` function, are two strings: the
// `id` attribute of box1 and the `value` attribute of box1.)
// We use `document.creatElement` to create an `input` element and a
// `label` element, and `document.createTextNode` to set some text
// to be used in the label (using the "newLabel" argument.)
const myInput = document.createElement("input");
const myLabel = document.createElement("label");
const myLabelText = document.createTextNode(newLabel + " ");
// We set our new `input` element's value using the "newValue" argument.
myInput.value = newValue;
// We use `appendChild` to put both the text and the input element
// inside the label, and to put the label inside `container`.
myLabel.appendChild(myLabelText);
myLabel.appendChild(myInput);
container.appendChild(myLabel);
}
// This process can be applied to multiple checkboxes on the same page
// by adding a loop inside the `noticeClick` function, where the string
// "box1" should be replaced with a variable that can refer to the id of a
// different checkbox's `id` for each iteration of the loop.
<label>
<input type="checkbox" id="box1" class="box" value="value1" />
Label for box1
</label>
<hr />
<div id="container"></div>