I am new to Mongo DB and queries. It will be highly appreciated if someone can help me querying the relevant data. I have 2 collections: Order & ReturnRequest. Order has an array of OrderItems and ReturnRequest has reference to orderID and an array of returnItems. I need to get all the returnItems , but the price of item is in OrderItem array of Order Collection
The Order Collection is as below
{
"_Orderid": "d991e92a-766c-054e-9ad8-1c902acc6efc",
"OrderItems": {
"id": "d991e92a46831",
"ProductID": "abc.",
"VendorID": "abv",
"Quantity": "5",
"UnitPrice": "220",
"Currency": "USD"
}
}
The ReturnRequest collection is as below
{
"_returnid": "1qqwerda-766c-054e-9ad8-1c902acc6efc",
"vendorID": "abv",
"orderId": "d991e92a-766c-054e-9ad8-1c902acc6efc"
"ReturnItems": {
"returnItemid": "AAARTY92a46831",
"ProductID": "abc",
"Quantity": "2",
}
}
I need to get the result as
{
"Orderid": "1qqwerda-766c-054e-9ad8-1c902acc6efc",
"vendorID": "abv",
"Currency":"USD",
"ReturnRequestid": "1qqwerda-766c-054e-9ad8-1c902acc6efc",
"ReturnItemid": "AAARTY92a46831",
"ProductID": "abc",
"Quantity": "2",
"Price" :"220"
}
Conditions are to join VendorID, OrderID, ProductID between the said collections
Use MongoDB aggregate for this purpose.
ReturnRequest.aggregate([
{
$lookup: {
from: "Order",
localField:"orderId",
foreignField: "_id",
as: "orderDetails"
},
{
$unwind: {
path: "orderDetails",
preserveNullAndEmptyArrays: true
}
},
{
$group: {
_id: "$_id", //ReturnRequest will have _id. if not then you can put $_returnid here instead of $_id.
"Orderid": { $first: "$_returnid" },
"vendorID": { $first: "$vendorID" },
"Currency": { $first: "$orderDetails.OrderItems.Currency" },
"ReturnRequestid": { $first: "$_returnid" },
"ReturnItemid": { $first: "$ReturnItems.returnItemid" },
"ProductID": { $first: "$ReturnItems.ProductID" },
"Quantity": { $first: "$ReturnItems.Quantity" },
"Price": { $first: "$orderDetails.OrderItems.UnitPrice" }
}
}
]);
This is considering that ReturnRequest has single Order document matching. If there are more than one Order documents matching for a ReturnRequest, then consider grouping based on orderId than _returnid.
Related
I have a problem. I do not want a "break" down in my GraphQL output. I have a GraphQL schema with a person. That person can have one or more interests. But unfortunately I only get a breakdown
What I mean by breakdown is the second curly brackets.
{
...
{
...
}
}
Is there an option to get the id of the person plus the id of the interests and the status without the second curly bracket?
GraphQL schema
Person
└── Interest
Query
query {
model {
allPersons{
id
name
interest {
id
status
}
}
}
}
[OUT]
{
"data": {
"model": {
"allPersons": [
{
"id": "01",
"name": "Max",
"interest ": {
"id": 4488448
"status": "active"
}
},
{
"id": "02",
"name": "Sophie",
"interest ": {
"id": 15445
"status": "deactivated"
}
},
What I want
{
{
"id": "01",
"id-interest": 4488448
"status": "active"
},
{
"id": "02",
"name": "Sophie",
"id-interest": 15445
"status": "deactivated"
},
}
What I tried but that deliver me the same result
fragment InterestTask on Interest {
id
status
}
query {
model {
allPersons{
id
interest {
...InterestTask
}
}
}
}
I cannot mutate a list of objects completely, because only the last element of the array will be mutated.
What already works perfectly is, if I put each element ({play_positions_id: ...}) in the array manually like here:
mutation CreateProfile {
__typename
create_profiles_item(data: {status: "draft", play_positions: [{play_positions_id: {id: "1"}}, {play_positions_id: {id: "2"}}]}) {
id
status
play_positions {
play_positions_id {
abbreviation
name
}
}
}
}
Output:
{
"data": {
"__typename": "Mutation",
"create_profiles_item": {
"id": "1337",
"status": "draft",
"play_positions": [
{
"play_positions_id": {
"id": "1",
"abbreviation": "RWB",
"name": "Right Wingback"
}
},
{
"play_positions_id": {
"id": "2",
"abbreviation": "CAM",
"name": "Central Attacking Midfielder"
}
}
],
}
}
}
Since you can add many of those elements, I defined a variable/argument like here
mutation CreateProfile2($cpppi: [create_profiles_play_positions_input]) {
__typename
create_profiles_item(data: {status: "draft", play_positions: $cpppi}) {
id
status
play_positions {
play_positions_id {
id
abbreviation
name
}
}
}
}
Variable object for above:
"cpppi": {
"play_positions_id": {
"id": "1"
},
"play_positions_id": {
"id": "2
}
}
Output:
{
"data": {
"__typename": "Mutation",
"create_profiles_item": {
"id": "1338",
"play_positions": [
{
"play_positions_id": {
"id": "2",
"abbreviation": "CAM",
"name": "Central Attacking Midfielder"
}
}
],
}
}
}
Schema:
input create_profiles_input {
id: ID
status: String!
play_positions: [create_profiles_play_positions_input]
}
input create_profiles_play_positions_input {
id: ID
play_positions_id: create_play_positions_input
}
input create_play_positions_input {
id: ID
abbreviation: String
name: String
}
At the last both snippets, only the last object with the id "2" will be mutated. I need these to use the defined input type from my backend.
I figured it out. I got it wrong with the brackets in the variable. Here the solution:
"cpppi": [
{
"play_positions_id": {
"id": "1"
}
},
{
"play_positions_id": {
"id": "2"
}
}
]
Only articles that contain the EmailMarketing tag are needed.
I'm probably doing the wrong search on the tag, since it's an array of values, not a single object, but I don't know how to do it right, I'm just learning graphql. Any help would be appreciated
query:
query {
enArticles {
title
previewText
tags(where: {name: "EmailMarketing"}){
name
}
}
}
result:
{
"data": {
"enArticles": [
{
"title": "title1",
"previewText": "previewText1",
"tags": [
{
"name": "EmailMarketing"
},
{
"name": "Personalization"
},
{
"name": "Advertising_campaign"
}
]
},
{
"title": "title2",
"previewText": "previewText2",
"tags": [
{
"name": "Marketing_strategy"
},
{
"name": "Marketing"
},
{
"name": "Marketing_campaign"
}
]
},
{
"title": "article 12",
"previewText": "article12",
"tags": []
}
]
}
}
I believe you first need to have coded an equality operator within your GraphQL schema. There's a good explanation of that here.
Once you add an equality operator - say, for example _eq - you can use it something like this:
query {
enArticles {
title
previewText
tags(where: {name: {_eq: "EmailMarketing"}}){
name
}
}
}
Specifically, you would need to create a filter and resolver.
The example here may help.
In my Strapi project, i'm trying to write a Graphql query that filters posts by an array of tags.
The post has to belong to all tags of the given array.
E.g. the post below would not meet the condition if given array is [1,2,3] but would pass the condition if array is [3,5].
Any help would be much appreciated
Example Post:
{
"id": "1",
"title": "Lorem Iopsum",
"created_at": "2021-02-19T22:53:19.204Z",
"tags": [
{
"id": "3",
"tag": "Porte De Gentily"
},
{
"id": "5",
"tag": "Bridges"
},
{
"id": "6",
"tag": "Towers"
}
]
}
I was trying something like:
query {
posts( where: {tags: {id_contains: [3,1]}}) {
title
tags{id},
created_at
}
}
You can do it something like this
query($ids:[ID]) {
posts( where: {tags: {id:$ids}}) {
title
tags{id},
created_at
}
}
And pass your ids as a query variable:
{
"ids": [1,5]
}
I am working on a project where I have to create one to many relationships which will get all the list of records referenced by id in another table and I have to display all the selected data in the multi-select field (selectArrayInput). Please help me out in this, if you help with an example that would be great.
Thanks in advance.
Example:
district
id name
1 A
2 B
3 C
block
id district_id name
1 1 ABC
2 1 XYZ
3 2 DEF
I am using https://github.com/Steams/ra-data-hasura-graphql hasura-graphql dataprovider for my application.
You're likely looking for "nested object queries" (see: https://hasura.io/docs/1.0/graphql/manual/queries/nested-object-queries.html#nested-object-queries)
An example...
query MyQuery {
district(where: {id: {_eq: 1}}) {
id
name
blocks {
id
name
}
}
}
result:
{
"data": {
"district": [
{
"id": 1,
"name": "A",
"blocks": [
{
"id": 1,
"name": "ABC"
},
{
"id": 2,
"name": "XYZ"
}
]
}
]
}
}
Or...
query MyQuery2 {
block(where: {district: {name: {_eq: "A"}}}) {
id
name
district {
id
name
}
}
}
result:
{
"data": {
"block": [
{
"id": 1,
"name": "ABC",
"district": {
"id": 1,
"name": "A"
}
},
{
"id": 2,
"name": "XYZ",
"district": {
"id": 1,
"name": "A"
}
}
]
}
}
Setting up the tables this way...
blocks:
districts:
Aside: I recommend using plural table names as they are more standard, "districts" and "blocks"