I've a table with (id, price). id is autoincremented. I want to return the id and full data of last inserted row.
Resolver:
{
"version": "2018-05-29",
"statements": [
"insert into notes (price) VALUES (100)",
"select * from notes WHERE id = $id"
]
}
How can I find the id of last inserted row. Second query of course will not work here as id is not known.
Does SELECT LAST_INSERT_ID(); work well in serverless context? How to store that variable and run third query?
I was running into the same issue. So far, this seems to work for us:
{
"version": "2018-05-29",
"statements": [
"INSERT INTO customer_addresses (`id`, `customerid`, `firstname`, `lastname`) VALUES (NULL, :CUSTOMERID, :FIRSTNAME, :LASTNAME)",
"SELECT * FROM customer_addresses WHERE id = LAST_INSERT_ID()"
],
"variableMap": {
":CUSTOMERID": $context.args.customerid,
":FIRSTNAME": "$context.args.input.firstname",
":LASTNAME": "$context.args.input.lastname"
}
}
Related
I would like to sort with strapi's graphql
I can do that by
{
users (sort: "id:asc") {
id
username
email
address {
id
city
state
street
}
}
}
I can sort by the first level of columns but how do I go deeper, for example address.city, because
". / :" don't work, graphql playground returns:
"errors": [
{
"message": "select \"users\".* from \"users\" order by \"address\".\"city\" desc limit $1 - missing FROM-clause entry for table \"address\"",
I have two tables reels and reel_variations, reels can have many reel_variations and reel_variations belong to one reel. I have read the Hasura docs and haven't been able to figure out how to insert a reel and a couple of reel variations in a single mutation.
mutation insertReelsAndVariations($objects: [reels_insert_input!]! = {}) {
insert_reels(objects: $objects) {
affected_rows
returning {
description
id
name
variations {
ball_bearings
braid_capacity
created_at
deleted_at
gear_ratio
max_drag
line_capacity
id
model_number
recovery
reel_id
retrieve
}
}
}
}
Variables
{
"objects": {
"name": "nice reel",
"description": "wicked nice reel",
"variations": {
"data": {
"ball_bearings": "djjdfkjdkjfdjkfjkd",
"braid_capacity": "dkfjdkfjkdf",
"gear_ratio": "20:1",
"max_drag": "20lbs",
"line_capacity": "400yrds",
"model_number": "jfdkjfkjdkfjkdjfjdf",
"recovery": "30 per turn"
}
}
}
}
Errors
{
"errors": [
{
"extensions": {
"path": "$.selectionSet.insert_reels.args.objects[0].variations.data",
"code": "constraint-violation"
},
"message": "Not-NULL violation. null value in column \"reel_id\" violates not-null constraint"
}
]
}
That's because the reel_id column is not set as a foreign key col referencing the reels table. So u can simply:
Make the reel_id col a foreign key which points to the id column of reels table!
I have 2 tables users and post
Table users has columns id and post, column contains an array of the form [1, 2, 3, 4, 5] - where 1, 2, 3, 4, 5 is id in table post
In the table posts the following columns id and text
Table users:
https://i.stack.imgur.com/ywdS7.png
Table posts:
https://i.stack.imgur.com/IBdpb.png
in hasura made an array relation
https://i.stack.imgur.com/311sd.png
Next I made the following request
{
users_test {
postz {
id
}
}
}
I would like to receive such data in response:
postz: [
{
text: 'qwe'
},
{
text: 'sdf'
}
]
But with such a request, I get a trace. error:
{
"errors": [
{
"extensions": {
"internal": {
"statement": "SELECT coalesce(json_agg(\"root\" ), '[]' ) AS \"root\" FROM (SELECT row_to_json((SELECT \"_5_e\" FROM (SELECT \"_4_root.ar.root.postz\".\"postz\" AS \"postz\" ) AS \"_5_e\" ) ) AS \"root\" FROM (SELECT * FROM \"public\".\"users_test\" WHERE ('true') ) AS \"_0_root.base\" LEFT OUTER JOIN LATERAL (SELECT coalesce(json_agg(\"postz\" ), '[]' ) AS \"postz\" FROM (SELECT row_to_json((SELECT \"_2_e\" FROM (SELECT \"_1_root.ar.root.postz.base\".\"id\" AS \"id\" ) AS \"_2_e\" ) ) AS \"postz\" FROM (SELECT * FROM \"public\".\"posts\" WHERE ((\"_0_root.base\".\"post\") = (\"id\")) ) AS \"_1_root.ar.root.postz.base\" ) AS \"_3_root.ar.root.postz\" ) AS \"_4_root.ar.root.postz\" ON ('true') ) AS \"_6_root\" ",
"prepared": true,
"error": {
"exec_status": "FatalError",
"hint": "No operator matches the given name and argument type(s). You might need to add explicit type casts.",
"message": "operator does not exist: json = integer",
"status_code": "42883",
"description": null
},
"arguments": [
"(Oid 114,Just (\"{\\\"x-hasura-role\\\":\\\"admin\\\"}\",Binary))"
]
},
"path": "$",
"code": "unexpected"
},
"message": "postgres query error"
}
]
}
What am I doing wrong and how can I fix it?
A few suggestions:
There are some typos in your query, as far as I can tell. Try:
{
users {
id
posts {
text
}
}
}
You don't need the post column on the users table. You just need a user_id column on the posts table, and a foreign key constraint from the posts table to the users table using the user_id and id columns of the tables respectively. Check out the docs here:
https://docs.hasura.io/1.0/graphql/manual/schema/relationships/create.html#step-3-create-an-array-relationship
https://docs.hasura.io/1.0/graphql/manual/schema/relationships/database-modelling/one-to-many.html
If you have to have the post array column for some reason, you can use computed fields to create a "relationship" between a json array and another table’s id.
https://docs.hasura.io/1.0/graphql/manual/schema/computed-fields.html#table-computed-fields
Your function would:
Take in the json array column
Extract the id's
Return select * from table where id in id's
Example:
https://jsonb-relationships-hasura.herokuapp.com/console/api-explorer
Computed field definition at: https://jsonb-relationships-hasura.herokuapp.com/console/data/schema/public/tables/authors/modify
Run these queries:
# Get list of articles for each author
query {
authors {
id
name
articles
}
}
# Get actual articles for each author
query {
authors {
id
name
owned_articles {
id
title
}
}
}
So i just started using graphql recently (last week to be precise). I get the concept of being able to filter queries with the 'where' argument and all but i noticed when i try to get objects from a deep nested query it becomes somewhat impossible. So say i have 'domestic_worker_nextofkin' query that should get fullname, mobile_phone1, and relationship where 'archived' _is_null equals true as given below:
domestic_workers_nextofkin(where: {archived:{_is_null: true}}){
full_name
mobile_phone1
domestic_workers_relationships{
relationship
}
}
}
The query above does it's intended job and gets the full_name, mobile_phone1 and relationship.
But my current problem is that when this query is deeply nested as shown below (the asterisked code):
query User($userId: Int) {
domestic_workers_news{
title
date_created
summary
url
}
users_user(where: {id: {_eq: $userId}}) {
domestic_workers_pictures(order_by: {id: desc}, limit: 1) {
id
}
id
password
username
first_name
last_name
email
gender
birth_date
mobile_phone1
mobile_phone2
home_address_street
home_address_town
home_address_lga
home_address_state
home_address_country
home_address_postal_code
job_title
workplace
verified
agreed_terms
date_joined
last_modified
domestic_workers_workers {
domestic_workers_pictures(order_by: {id: desc}, limit: 1) {
id
}
id
first_name
last_name
other_name
email
mobile_phone1
mobile_phone2
home_town
home_state
service
birth_date
gender
date_created
current_employer_id
domestic_workers_relationships{
id
payment
payment_currency
start_date
relationship
domestic_workers_agent {
full_name
mobile_phone1
domestic_workers_relationships{
relationship
}
domestic_workers_pictures(order_by: {id: desc}, limit: 1) {
id
}
}
**domestic_workers_nextofkin (where: {archived:{_is_null: true}}) {
full_name
mobile_phone1
domestic_workers_relationships{
relationship
}
}
}**
domestic_workers_reviews {
id
score
summary
date_created
users_user {
first_name
last_name
domestic_workers_pictures(order_by: {id: desc}, limit: 1) {
id
}
}
}
employerRelationships: domestic_workers_relationships(order_by: {id: desc}, limit: 1, where: {relationship: {_eq: "Employer"}}) {
end_date
relationship
}
}
}
}
It shows the 'where' argument highlighted as red, which possibly means that the 'where' argument shouldnt be placed there which seems rather confusing to me. Can anyone explain why this happens and show me a workaround to pull off the task i'm trying to perform? Thanks.
From the docs:
The where argument can be used in array relationships as well to filter the nested objects. Object relationships have only one nested object and hence they do not expose the where argument.
users_user is an object relationship (it returns a single object instead of an array of them), so it cannot be filtered.
This problem is boggling my mind.
I'm trying to query an RDS table with a non-primary key inside a graphql query.
Here is the example of two of my queries in appsync
query getloc{
getLocationByCounty(County: "County"){
LocationsID
State
County
}
}
query getLocations{
getLocation(LocationsID: 1){
LocationsID
State
County
}
}
The second query here works, and returns exactly the county with that LocationID.
The first returns the error message: "Cannot return null for non-nullable type: 'Int' within parent 'Locations' (/getLocationByCounty/LocationsID)"
If I change the schema for locations and make LocationsID non-nullable the error goes away, but it
returns null.
{
"data": {
"getLocationByCounty": {
"State": null
}
}
}
My request resolver for the getLocationsByCounty is:
"version": "2018-05-29",
"statements": ["select * from Locations where County = '$ctx.args.County'"]
Here is the response resolver:
## Raise a GraphQL field error in case of a datasource invocation error
#if($ctx.error)
$utils.error($ctx.error.message, $ctx.error.type)
#end
$utils.toJson($utils.rds.toJsonObject($ctx.result)[0])
Is this just not allowed in graphQL or is am I doing wrong???
It's worth noting that if I just do this query:
select * from Locations where County = 'County'
in mySQL, it works exactly as intended.