Find all objects that contain a property with a given key using JPath - jpath

Is it possible to (and if so how do I) recursively get a list of all objects within an object that contains a property with a given key or a given key in a set of keys using JPath?
Example
For this object searching for the type property:
[
{
type: 'text'
},
{
type: 'folder',
children:
[
{
type: 'text'
}
]
},
{
name: 'Some object without a type'
}
]
I would get:
[
{
type: 'text'
},
{
type: 'folder'
children:
[
{
type: 'text'
}
]
},
{
type: 'text'
}
]

I found the answer. You can use this query syntax:
$..[?(#.type)]
To explain it:
$ is the root node selector
.. is the recursive query syntax
[...] Subscript operator
?(...) is the expression/ filter syntax
#.type checks for the existence of the type property on the current node being evaluated
as outlined on
https://goessner.net/articles/JsonPath/

Related

Use of TypeSet vs TypeList in Terraform when building a custom provider

I'm developing a terraform provider by following this guide.
However I stumbled upon using TypeList vs TypeSet:
TypeSet implements set behavior and is used to represent an unordered collection of items, meaning that their ordering specified does not need to be consistent, and the ordering itself has no impact on the behavior of the resource.
TypeList is used to represent an ordered collection of items, where the order the items are presented can impact the behavior of the resource being modeled. An example of ordered items would be network routing rules, where rules are examined in the order they are given until a match is found. The items are all of the same type defined by the Elem property.
My resource require one of 2 blocks to be present, i.e.:
resource "foo" "example" {
name = "123"
# Only one of basketball / football are expected to be present
basketball {
nba_id = "23"
}
football {
nfl_id = "1"
}
}
and my schema looks the following:
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
},
"basketball": basketballSchema(),
"football": footballSchema(),
},
func basketballSchema() *schema.Schema {
return &schema.Schema{
Type: schema.TypeList,
Optional: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"nba_id": {
Type: schema.TypeString,
Required: true,
},
},
},
ExactlyOneOf: ["basketball", "football"],
}
}
func footballSchema() *schema.Schema {
return &schema.Schema{
Type: schema.TypeList,
Optional: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"nfl_id": {
Type: schema.TypeString,
Required: true,
},
},
},
ExactlyOneOf: ["basketball", "football"],
}
}
Is that accurate that both TypeSet and TypeList will work in this scenario where we restrict the number of elements to either 0 or just 1?

Deleting items from the array of objects

I have a document that looks like:
{
_id: "....",
hostname: "mysite.com",
text: [
{
source: "this is text. this is some pattern",
...
},
{
source: "....",
...
}
]
}
and I am trying to delete the items from the text array which match a specific condition in my query given as:
db.getCollection('TM').updateMany(
{hostname: "mysite.com"},
{
$pull: {
"text.source": /this is some pattern/
}
},
{ multi: true }
)
Here I want to delete all the items from the array where the value inside source matches this is some pattern. When I execute this query, it gives an error saying: Cannot use the part (source) of (text.source) to traverse the element with error code 28.
What is the way to achieve this?
it gives an error saying: Cannot use the part (source) of (text.source) to traverse the element with error code 28.
Incorrect syntax of $pull for update methods,
Corrected syntax, and You can use $regex to find document by specific pattern,
"text.source" the condition in filter part will filter main documents, it is optional
text: { source: will filter sub documents and pull elements
db.getCollection('TM').updateMany(
{
hostname: "mysite.com",
"text.source": { $regex: "this is some pattern" }
},
{
$pull: {
text: { source: { $regex: "this is some pattern" } }
}
}
)
Playground

How to use scope in loopback filter in json format

I am trying to make call from my angular service to loopback api. I have a parcelStatuses collection that contains a parcelId so i am able to include parcel collection too but I also need to check against a particular vendorId and that vendorId exists in parcel collection. I am trying to make use of scope to check against particular vendorId but i think i am not writing correct json syntax/call. Here is my function inside service
private getParcelsByFilter(
limit: number,
skip: number,
vendorId: string,
filter: string
) {
const checkFilter = {
"where": {
"and": [{"statusRepositoryId": filter}]
},
"include": [
{
"parcel": [
{
"scope": {"vendorId": vendorId}
},
"parcelStatuses",
{"customerData":"customer"}
]
}
],
"limit": limit,
"skip": skip,
}
return this._http.get<IParcel[]>(
`${environment.url}/ParcelStatuses?filter=${encodeURIComponent(JSON.stringify(checkFilter))}`
);
}
Here is my demo view of parcelStatus collection object
[{
"id":"lbh24214",
"statusRepositoryId":"3214fsad",
"parcelId":"LH21421"
}]
Demo json of parcel
[{
"id":"LHE21421",
"customerDataId":"214fdsas",
"customerId":"412dsf",
"vendorId":"123421"
}]
Please help me with writing correct call
Formatting aside, there's several issues with the query:
Unnecessary and
This line:
where: {
and: [{statusRepositoryId: filter}]
}
Can be simplified to:
where: {
statusRepositoryId: filter
}
As there is only 1 where condition, and becomes redundant.
Misuse of include and scope
include is used to include relations while scope applies filters to those relations. They can work in tandem to create a comprehensive query:
include: [
{
relation: "parcels",
scope: {
where: {vendorId: vendorId},
}
}
],
This will include the parcels relation as part of the response, while filtering the parcels relation with a where filter.
That means the final code should look similar to the following:
private getParcelsByFilter(
limit: number,
skip: number,
vendorId: string,
filter: string
) {
const checkFilter = {
where: {statusRepositoryId: filter},
include: [
{
relation: "parcels",
scope: {
where: {vendorId: vendorId},
}
}
],
limit: limit,
skip: skip,
}
return this._http.get<IParcel[]>(
`${environment.url}/ParcelStatuses?filter=${encodeURIComponent(JSON.stringify(checkFilter))}`
);
}
Further reading
Please review these resources to get a better understanding on how to use filters.
https://loopback.io/doc/en/lb4/Include-filter.html

Jest test.each with object property in name [duplicate]

Is it possible to access an object's key inside the name portion of a .each?
let accounts =
[
{
details:
{
company_name:
"company_name",
email,
password:
"asdf",
},
find:
[
"_id",
"company_name",
"email",
"type",
],
type:
"creator"
},
{
details:
{
email,
first_name:
"first_name",
last_name:
"last_name",
password:
"asdf",
},
find:
[
"_id",
"email",
"first_name",
"last_name",
"type",
],
type:
"user"
},
]
describe.each(accounts)(
"%s", // <-- access the 'type' key, e.g. account.type
function (account)
{
// test code
}
)
Jest describe.each expects an array of arrays in the first parameter. If you pass in a 1D array, internally it will be mapped to an array of arrays (i.e. passing [1, 2, 3] as first parameter would be converted to [[1], [2], [3]]).
Each one of the arrays inside of the array is used as the data for a test suite. So, in the previous example, describe.each would generate three test suites, the first with 1 as data, the second with 2 as data and the third with 3 as data.
Now, in the test suite name, you can only format the parameters you are providing to it. In your case, you are passing to each test suite the data in each object of the accounts array. So, when you set the format specifiers in the test suite name, they will apply to the whole account object (i.e. the %s in your example will stringify your object resulting in [object Object]). Unfortunately, I don't think you can apply the format specifiers to a key of the object.
Some ideas to accomplish what you want:
Solution 1
If you use the %s formatter to compose the test suite name, the toString method of Object will be called (which by default returns [object Object]).
If you define a toString method in each of your accounts objects, that method will be used instead. So, we could add the toString method to each one of the account objects with this code (note that the toString method we are adding is returning the value for the type key):
const accounts = [{
details: {
company_name: "company_name",
email: "aa",
password: "asdf",
},
find: [ "_id", "company_name", "email", "type", ],
type: "creator"
}, {
details: {
email: 'bb',
first_name: "first_name",
last_name: "last_name",
password: "asdf",
},
find: [ "_id", "email", "first_name", "last_name", "type", ],
type: "user"
}].map(account => Object.assign(account, { toString: function() { return this.type; } }));
Now, with the %s format specifier you should see the account type in each test suite:
describe.each(accounts)(
"%s", // <-- This will cause the toString method to be called.
function (account)
{
// test code
}
)
Solution 2
You can always redefine each one of your test suite data so that the first parameter is the account type (note that now accounts is a 2D array):
let accounts = [
[
"creator",
{
details: {
company_name: "company_name",
email: "email",
password: "asdf",
},
find: [ "_id", "company_name", "email", "type", ],
type: "creator"
}
], [
"user",
{
details: {
email: "email",
first_name: "first_name",
last_name: "last_name",
password: "asdf",
},
find: [ "_id", "email", "first_name", "last_name", "type", ],
type: "user"
},
]
]
You can now use that first parameter (which is the account type) to give the test suite its name:
describe.each(accounts)(
'%s', // <-- This %s will format the first item in each test suite array.
function (accountType, account) {
// test code
}
);
Note that now your test function receives two parameters as each test suite array has two elements. The first one is the account type and the second one is the account data.
Solution 3
You can use the tagged template literal form of describe.each. With this solution you don't have to change your current definition of accounts array.
describe.each`
account
${accounts[0]}
${accounts[1]}
`('$account.type', function (account) {
// test code
});
The downside of this solution is that you have to manually append each test suite data in the template literal in a new line (i.e. if you add a new element to the accounts array you have to remember to add it in the template literal in a new line as ${accounts[2]}).
you can map your initial account array to convert each account into an array with 2 items:
the account type
the initial account element
Now, you can use the first element array in describe name
describe.each(accounts.map(account => [account.type, account]))(
'testing %s', // %s replaced by account type
(type, account) => { // note: 2 arguments now
it('details should be defined ', () => {
expect(account.details).toBeDefined();
});
},
);
As modern doc says, you can
generate unique test titles by injecting properties of test case object with $variable
So simply:
describe.each(accounts)(
"$type",
function (account) {
// tests
}
)
You can access nested object values like this: $variable.path.to.value
The same works on test.each level.
I had a similar problem with an object. I wanted to test an error message depending on http error codes, so I wrote a test object like so:
const expectedElements = {
error: {
code: 500,
title: "Problème avec l'API"
},
notFound:{
code: 404,
title: "Élement absent"
},
unauthorized:{
code: 401,
title: "Accès non autorisé"
}
};
I used Object.entries(obj) to get an array with those entries written like so: ['key','value']. I can access thoses as two parameters in the test. Here's how I wrote it:
test.each(Object.entries(expectedElements))("NoAccess show the right element for %s",(key,expectedElement)=>{
const { getByRole } = render(<NoAccess apiStatusCode={expectedElement.code}/>);
//test code
});
Now I can add cases as much as I want and I won't have to rewrite the test or create an array. I just write an new value in my expectedElements object. Bonus, I also have a descriptive test name!
Another alternative is to create a wrapper class and stick to a simple convention:
class TestCase {
constructor(value) {
this._value = value;
}
get value() {
return this._value;
}
toString() {
return JSON.stringify(this._value);
}
}
Then a test will look like this:
const testCases = accounts.map(TestCase)
describe.each(accounts)(
"%s", // <-- you can customize this in TestCase toString
function ({value: account})
{
// test code
}
)

Using $concat with $project is giving error : 'MongoError: $concat only supports strings, not double'?

I have a mongoose model in which some fields are like :
var AssociateSchema = new Schema({
personalInformation: {
familyName: { type: String },
givenName: { type: String }
}
})
I want to perform a '$regex' on the concatenation of familyName and givenName (something like 'familyName + " " + 'givenName'), for this purpose I'm using aggregate framework with $concat inside $project to produce a 'fullName' field and then '$regex' inside $match to search on that field. The code in mongoose for my query is:
Associate.aggregate([
{ $project: {fullName: { $concat: [
'personalInformation.givenName','personalInformation.familyName']}}},
$match: { fullName: { 'active': true, $regex: param, $options: 'i' } }}
])
But it's giving me error:
MongoError: $concat only supports strings, not double on the first
stage of my aggregate pipeline i.e $project stage.
Can anyone point out what I'm doing wrong ?
I also got this error and then discovered that indeed one of the documents in the collection was to blame. They way I fished it out was by filtering by field type as explained in the docs:
db.addressBook.find( { "zipCode" : { $type : "double" } } )
I found the field had the value NaN, which to my eyes wouldn't be a number, but mongodb interprets it as such.
Looking at your code, I'm not sure why $concat isn't working for you unless you've had some integers sneak into some of your document fields. Have you tried having a $-sign in front of your concatenated values? as in, '$personalInformation.givenName'? Are you sure every single familyName and givenName is a string, not a double, in your collection? All it takes is one double for your $concat to fold.
In any case, I had a similar type mismatch problem with actual doubles. $concat indeed supports only strings, and usually, all you'd do is cast any non-strings to strings.. but alas, at the time of this writing MongoDB 3.6.2 does not yet support integer/double => string casting, only date => string casting. Sad face.
That said, try adding this projection hack at the top of your query. This worked for me as a typecast. Just make sure you provide a long enough byte length (128-byte name is pretty long so you should be okay).
{
$project: {
castedGivenName: {
$substrBytes: [ 'personalInformation.givenName', 0, 128 ]
},
castedFamilyName: {
$substrBytes: [ 'personalInformation.familyName', 0, 128 ]
}
},
{
$project: {
fullName: {
$concat: [
'$castedGivenName',
'$castedFamilyName'
]
}
}
},
{
$match: { fullName: { 'active': true, $regex: param, $options: 'i' } }
}
I managed to make it work by using $substr method, so the $project part of my aggregate pipeline is now:
`$project: {
fullName: {
$concat: [
{ $substr: ['$personalInformation.givenName', 0, -1] }, ' ', { $substr: ['$personalInformation.familyName', 0, -1] }
]
}
}
}`

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