I have a problem, I want to get all the data from the list, so I want to loop through each data in the selected item and insert it into the database,
Currently when I print ['[object Object]', '[object Object]'], it returns data like this,
How to insert these data one by one? Or just print them one by one?
I have this list which is selected_items I loop the data and then pass it to ajax
selected_items = [];
for (var i = 0; i < checkBoxes.length; i++) {
var selected_obj ={
stock_id: checkBoxes[i].id,
quantity: row.cells[3].innerHTML
}
selected_items.push(selected_obj);
}
When the console selected_items is like this
So now I want to pass these lists to django using ajax
console.log(selected_items);
$.ajax({
type: "POST",
url: "{% url 'sales-item' %}",
data:{
multiple_list: selected_items.join(','), item_size: selected_items.length
}
}).done(function(data){...
views.py
out_items = request.POST.getlist('multiple_list[]')
print(out_items)
It prints out like this
['[object Object]', '[object Object]']
Update codeHow to loop data? This is what I tried but it doesn't reflect the data at all
multiple_list: JSON.stringify(selected_items)
view.py
out_items = request.POST.get('multiple_list')
for i in out_items:
print(out_items1[i])
**How to print or insert into database?
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When you do
selected_items.join(','), you are getting the__str__# of{'stock_id': 5, 'quantity': 15}## (or equivalent js), which happens to be[object Object ]So I recommend just using Json, which will encode the entire nested list dictionary and will be loaded as a normal list dictionary in python
Javascript
Python$.ajax({ type: "POST", url: "{% url 'sales-item' %}", data:{ multiple_list: JSON.stringify(selected_items), item_size: selected_items.length, } }).done(function(data){...stock_list = json.loads(request.POST.get('multiple_list')) print(type(stock_list)) #
print(stock_list)
# [
# {'stock_id': 5, 'quantity': 15},
# ]
edit
Yes! , you just loop over it like a normal nested list dictionarystock_list = json.loads(request.POST.get('multiple_list')) for stock_list_item in stock_list: obj, was_created_bool = MyModel.objects.get_or_create( stock_id=stock_list_item['stock_id'], quantity=stock_list_item['quantity'] )but! If you know that you are going to create each project, I recommend using bulk_create
stock_list = json.loads(request.POST.get('multiple_list')) bulk_create_list = [] for stock_list_item in stock_list: bulk_create_list.append( MyModel( # Note: NO .object stock_id=stock_list_item['stock_id'], quantity=stock_list_item['quantity'] ) ) # Creates all items in one query MyModel.objects.bulk_create(bulk_create_list)&Additional Highlights
The working principles of these are the same!(It is very convenient to create filters dynamically ;))
# setup stock_list_item = {'stock_id': 5, 'quantity': 15} # ---- MyModel.objects.get_or_create( stock_id=stock_list_item['stock_id'], quantity=stock_list_item['quantity'] ) # == MyModel.objects.get_or_create(**{'stock_id': 5, 'quantity': 15}) # == MyModel.objects.get_or_create(**stock_list_item)