I am working with Apollo GraphQL and have to call nested query .But while call the Query in .graphql file it showing
Syntax error : Expected Name, found {
Let me know how to call Nested query of GraphQL.
I have to call getAllproduct{....} query with the specified parameters.Here the FilterInput having the parameter as location with another pattern of query , so I don't know how to call this nested query.Anyone please help me to find out the solution.Thanks...
If an argument is an Input Object Type (as opposed to a Scalar), you can include the fields of the Input Object Type by using curly brackets.
query MyProductsQuery {
allProducts(
pageNumber: "someString"
filter: {
title: "someOtherString"
yearFrom: 1900
location: {
city: "yetAnotherString"
state: "FL"
}
}
) {
id
# other product fields
}
}
Of course, hardcoding those values in a .graphql file is not very helpful. You probably want to be able to swap those values out programatically. So here's what that same query looks like with variables:
query MyProductsQuery($pageNumber: String, $filter: FilterInput) {
allProducts(pageNumber: $pageNumber, filter: $filter) {
id
# other product fields
}
}
Your variables are passed in separately from your query and unlike your query, are not a GraphQL document. They are just JSON:
{
"pageNumber": "someString",
"filter": {
"title": "someOtherString",
"yearFrom": 1900,
"location": {
"city": "yetAnotherString",
"state": "FL"
}
}
}
Related
I am trying to contain array as a document value.
I succeed it in "tags" field as below;
This document contains array of strings.
curl -XGET localhost:9200/MY_INDEX/_doc/132328908
#=> {
"_index":"MY_INDEX",
"_type":"_doc",
"_id":"132328908",
"found":true,
"_source": {
"tags": ["food"]
}
}
However, when I am putting items in the same way as above,
the document is SOMETIMES like that;
curl -XGET localhost:9200/MY_INDEX/_doc/328098989
#=> {
"_index":"MY_INDEX",
"_type":"_doc",
"_id":"328098989",
"found":true,
"_source": {
"tags": "[\"food\"]"
}
}
This is string of array, not array of strings, which I expected.
"tags": "[\"food\"]"
It seems that this situation happens randomly and I could not predict it.
How could it happen?
Note:
・I use elasticsearch-ruby client to index a document.
This is my actual code;
es_client = Elasticsearch::Client.new url: MY_ENDPOINT
es_client.index(
index: MY_INDEX,
id: random_id, # defined elsewhere
body: {
doc: {
"tags": ["food"]
},
}
)
Thank you in advance.
package play
exists(obj, a) {
obj[a]
}
hello {
exists(input, "department")
contains(input["location"], "London")
}
world {
contains(input["location"], "London")
exists(input, "department")
}
input = {
"department": "Eng",
"location": "London" }
Above code matches only hello. Why world does not match even when the conditions are same, but order reversed ?
The order of the statements does not matter. You've actually found a bug!
If you change the example slightly so that exists is not called with input as the first argument but instead something like exists(input.user, "department") and then you update the input document to reflect that:
{"user": {"department": "Eng", "location": "London"}}
You'll observe the correct behaviour (e.g., world { contains(input.user["location"], "London"); exists(input.user, "department") }).
So I have a json (in text field) and I'm using postgresql and I need to query the field but it's nested a bit deep. Here's the format:
[
{
"name":"First Things",
"items":[
{
"name":"Foo Bar Item 1",
"price":"10.00"
},
{
"name":"Foo Item 2",
"price":"20.00"
}
]
},
{
"name":"Second Things",
"items": [
{
"name":"Bar Item 3",
"price":"15.00"
}
]
}
]
And I need to query the name INSIDE the items node. I have tried some queries but to no avail, like:
.where('this_json::JSON #> [{"items": [{"name": ?}]}]', "%#{name}%"). How should I go about here?
I can query normal JSON format like this_json::JSON -> 'key' = ? but need help with this bit.
Here you need to use json_array_elements() twice, as your top level document contains array of json, than items key has array of sub documents. Sample psql query may be the following:
SELECT
item->>'name' AS item_name,
item->>'price' AS item_price
FROM t,
json_array_elements(t.v) js_val,
json_array_elements(js_val->'items') item;
where t - is the name of your table, v - name of your JSON column.
I’d like to combine ids query with must_not clause. I’m using (re)tire gem with rails application.
I’m doing something like this:
query do
ids ["foo", "bar", "test"]
end
Which works. However, when I’m trying to combine it with must_not clause, I’m getting error – must_not works only withing boolean scope, which does not include ids query. Is there any way to combine that two queries?
The ES query that you need to use is this one:
GET /some_index/some_type/_search
{
"query": {
"bool": {
"must": [
{
"ids": {
"values": ["foo", "bar", "test"]
}
}
],
"must_not": [
{
"match": {
"name": "whatever"
}
}
]
}
}
}
So, you need boolean scope, a must with your ids and a must_not with your must not match queries.
I have a Record model with many dynamic attributes. I want to make a request to the model an send the response as JSON to the client. But i want to exclude fields like _id and all foreign_keys in this model.
I found an interessting answer how to exclude the values of some keys: How do I exclude fields from an embedded document in Mongoid?, but the keys in the response still exists.
I got:
{
"_id": 1,
"name": "tom"
}
And the without method makes:
{
"_id": nil,
"name": "tom"
}
But i want:
{
"name": "tom"
}
Is it possible to remove or exclude some keys and the values from the result?
You don't want to remove fields from the mongoid document, what you want to do is remove fields from the generated json.
In your controller, do
render :json => #model.to_json(:except => :_id)
Documentation for the to_json method http://apidock.com/rails/ActiveRecord/Serialization/to_json
taken from the mongodb documentation at: http://docs.mongodb.org/manual/reference/method/db.collection.find/
Exclude Certain Fields from the Result Set
The following example selects documents that match a selection criteria and excludes a set of fields from the resulting documents:
db.products.find( { qty: { $gt: 25 } }, { _id: 0, qty: 0 } )
The query returns all the documents from the collection products where qty is greater than 25. The documents in the result set will contain all fields except the _id and qty fields, as in the following:
{ "item" : "pencil", "type" : "no.2" }
{ "item" : "bottle", "type" : "blue" }
{ "item" : "paper" }
i suppose mongoid is setting the _id attribute to nil since mongoid models have a defined set of attributes (even if they are dynamic, _id, _type etc are defined). maybe you can try it with the mongodb driver.
but i think RedXVII answer is the more practical way to go