How do you reference other property values in JSON schema? - json

I have a JSON schema with 2 properties, minimumTolerance and maximumTolerance. I need to make sure that the value of maximumTolerance is not smaller than minimumTolerance & vice versa. Is this possible in JSON schema?
Here is an example of what I'd like to be able to do:
{
"$schema": "http://json-schema.org/draft-06/schema#",
"title": "MinMax",
"description": "Minum & Maximum",
"type": "object",
"properties": {
"minimumTolerance":{
"type": "number"
"maximum":{
"$ref":"maximumTolerance"
}
}
"maximumTolerance":{
"type": "number"
"minumum": {
"$ref":"minimumTolerance"
}
}
}

As of Draft-7 of the specification there is no way to do this with JSON Schema.

If you are using AJV You can do this using $data and relative JSON pointers. Example:
low: {
type: 'integer',
maximum: {
$data: '1/high',
},
exclusiveMaximum: true,
},
high: {
type: 'integer',
minimum: {
$data: '1/low',
},
exclusiveMinimum: true,
},

Yes, but it may not be the dynamic answer you are looking for...put in the values of min and max for the range expected:
"MinimumTolerance": {
"type": "number",
"minimum": 0,
"maximum": 6000,
},
"MaximumTolerance": {
"type": "number",
"minimum": 6001,
},

Related

How can I specify in a json schema that a certain property is mandatory and also must contain a specific value?

I want to create several json schemas for different scenarios.
For scenario 1 I would like to specify that:
a) The property "draftenabled" must have the value true.
b) the property "draftenabled" does exist.
I have checked this post
Validating Mandatory String values in JSON Schema
and tried the following
I tried to validate this json
{
"$schema": "./test-schema.json",
"draftenabled": false,
"prefix": "hugo"
}
with this schema test-schema.json that I had created in Visual Studio Code.
{
"$schema": "http://json-schema.org/draft-04/schema#",
"properties": {
"$schema": {
"type": "string"
},
"draftenabled": {
"type": "boolean"
},
"prefix": {
"type": "string"
}
},
"additionalItems": false,
"contains": {
"properties": {
"draftenabled": {
"const": true
}
},
"required": [
"draftenabled"
]
}
}
I would have expected an error since the value for draftenabled is false rather than true.
It looks like there is some confusion around how the keywords apply to instances (data) of different types.
properties only applies to objects
additionalItems and contains only apply to arrays
Since your instance is an object, additionalItems and contains will be ignored.
Based on your description of what you want, I would do something like the following:
{
"$schema": "http://json-schema.org/draft-04/schema#",
"properties": {
"$schema": {
"type": "string"
},
"draftenabled": {
"const": "true"
},
"prefix": {
"type": "string"
}
},
"required": [
"draftenabled"
]
}
This moves the definitions you have in the contains into the main schema. You got that bit right, just in the wrong place.
You also mention that this is a "scenario 1." If there are other scenarios, I suggest creating schemas like this for each scenario then wrapping all of them together in a oneOf or anyOf:
{
"oneOf": [
{ <scenario 1> },
{ <scenario 2> },
...
]
}

How to POST a record with fk data in Strapi?

I have a problem when I try to POST a new record.
I have a legacy app that I'm consuming with Strapi, so I didn't let Strapi create the tables, it just only use what is on the DDBB.
This one of the collection type: (enfermedadrepeticion) (go to repeticion_id)
{
"kind": "collectionType",
"connection": "atdbconnection",
"collectionName": "enfermedadrepeticion",
"info": {
"name": "RepeticionEnfermedad"
},
"options": {
"increments": false,
"timestamps": false
},
"attributes": {
"valor": {
"type": "decimal"
},
"enfermedad_id": {
"type": "integer"
},
"valor_1": {
"type": "string"
},
"valor_2": {
"type": "string"
},
"fechaTomaDato": {
"type": "string"
},
"repeticion_id": {
"via": "repeticion_enfermedads",
"model": "repeticion"
}
}
}
this is the model "repeticion" ... go to repeticion_enfermedads...
{
"kind": "collectionType",
"connection": "atdbconnection",
"collectionName": "repeticiones",
"info": {
"name": "Repeticion"
},
"options": {
"increments": false,
"timestamps": false
},
"attributes": {
"activa": {
"type": "boolean"
},
"altura": {
"type": "string"
},
"linea_id": {
"model": "linea"
},
"ensayo_id": {
"type": "integer"
},
"esp": {
"type": "string"
},
... bunch of fields ...
"repeticion_enfermedads": {
"collection": "repeticion-enfermedad",
"via": "repeticion_id"
}
}
}
My relation is: One Repeticion have 0 or N repeticion-enfermedad, via repeticion_id field.
Using this relation, when I fetch data from "Repeticion" I get one or more "Repeticion-Enfermedad".
So, when I need to update una entry in "Repeticion-Enfermedad" I PUT the data with this body :
body {
enfermedad_id: 1,
fechaTomaDato: '2021-05-05 03:29:29',
fechaUltCambio: '2021-05-05 03:29:29',
repeticion_id: { id: 392571 },
valor: 60,
valor_1: '60',
valor_2: 'S'
}
and everything works fine!!
But when I try to create a record using POST, with the same body, I get a 500 error.
error Error: ER_NO_DEFAULT_FOR_FIELD: Field 'repeticion_id' doesn't have a default value
I try to send the body using Swagger, and I get the same error.
I try, sending "repeticion_id" field, using integer, string, object, etc, but I cant't make it work...
My Strapi version is 3.0.6
I really don't want to alter the model definition, it's working fine...
Any suggestion ??
Best Regards
OK, I found the problem.
There is nothing to do with Strapi, I have to add NOT NULL to the field in RepeticionEnfermedad table.
It looks like Strapi first tries to create a record in that table, and then updates the recently added record...
I leave my answer in case someone got the same problem.
Chiao!

In Logic Apps JSON Array while parsing throwing error for single object but for multiple objects it is working fine

While parsing JSON in Azure Logic App in my array I can get single or multiple values/objects (Box as shown in below example)
Both type of inputs are correct but when only single object is coming then it is throwing an error "Invalid type. Expected Array but got Object "
Input 1 (Throwing error) : -
{
"MyBoxCollection":
{
"Box":{
"BoxName": "Box 1"
}
}
}
Input 2 (Working Fine) : -
{
"MyBoxCollection":
[
{
"Box":{
"BoxName": "Box 1"
},
"Box":{
"BoxName": "Box 2"
}
}]
}
JSON Schema :
"MyBoxCollection": {
"type": "object",
"properties": {
"box": {
"type": "array",
items": {
"type": "object",
"properties": {
"BoxName": {
"type": "string"
},
......
.....
..
}
Error Details :-
[
{
"message": "Invalid type. Expected Array but got Object .",
"lineNumber": 0,
"linePosition": 0,
"path": "Order.MyBoxCollection.Box",
"schemaId": "#/properties/Root/properties/MyBoxCollection/properties/Box",
"errorType": "type",
"childErrors": []
}
]
I used to use the trick of injecting a couple of dummy rows in the resultset as suggested by the other posts, but I recently found a better way. Kudos to Thomas Prokov for providing the inspiration in his NETWORG blog post.
The JSON parse schema accepts multiple choices as type, so simply replace
"type": "array"
with
"type": ["array","object"]
and your parse step will happily parse either an array or a single value (or no value at all).
You may then need to identify which scenario you're in: 0, 1 or multiple records in the resultset? I'm pasting below how you can create a variable (ResultsetSize) which takes one of 3 values (rs_0, rs_1 or rs_n) for your switch:
"Initialize_ResultsetSize": {
"inputs": {
"variables": [
{
"name": "ResultsetSize",
"type": "string",
"value": "rs_n"
}
]
},
"runAfter": {
"<replace_with_name_of_previous_action>": [
"Succeeded"
]
},
"type": "InitializeVariable"
},
"Check_if_resultset_is_0_or_1_records": {
"actions": {
"Set_ResultsetSize_to_0": {
"inputs": {
"name": "ResultsetSize",
"value": "rs_0"
},
"runAfter": {},
"type": "SetVariable"
}
},
"else": {
"actions": {
"Set_ResultsetSize_to_1": {
"inputs": {
"name": "ResultsetSize",
"value": "rs_1"
},
"runAfter": {},
"type": "SetVariable"
}
}
},
"expression": {
"and": [
{
"equals": [
"#string(body('<replace_with_name_of_Parse_JSON_action>')?['<replace_with_name_of_root_element>']?['<replace_with_name_of_list_container_element>']?['<replace_with_name_of_item_element>']?['<replace_with_non_null_element_or_attribute>'])",
""
]
}
]
},
"runAfter": {
"Initialize_ResultsetSize": [
"Succeeded"
]
},
"type": "If"
},
"Process_resultset_depending_on_ResultsetSize": {
"cases": {
"Case_no_record": {
"actions": {
},
"case": "rs_0"
},
"Case_one_record_only": {
"actions": {
},
"case": "rs_1"
}
},
"default": {
"actions": {
}
},
"expression": "#variables('ResultsetSize')",
"runAfter": {
"Check_if_resultset_is_0_or_1_records": [
"Succeeded",
"Failed",
"Skipped",
"TimedOut"
]
},
"type": "Switch"
}
For this problem, I met another stack overflow post which is similar to this problem. While there is one "Box", it will be shown as {key/value pair} but not [array] when we convert it to json format. I think it is caused by design, so maybe we can just add a record "Box" at the source of your xml data such as:
<Box>specific_test</Box>
And do some operation to escape the "specific_test" in the next steps.
Another workaround for your reference:
If your json data has only one array, we can use it to do a judgment. We can judge the json data if it contains "[" character. If it contains "[", the return value is the index of the "[" character. If not contains, the return value is -1.
The expression shows as below:
indexOf('{"MyBoxCollection":{"Box":[aaa,bbb]}}', '[')
The screenshot above is the situation when it doesn't contain "[", it return -1.
Then we can add a "If" condition. If >0, do "Parse JSON" with one of the schema. If =-1, do "Parse JSON" with the other schema.
Hope it would be helpful to your problem~
We faced a similar issue. The only solution we find is by manipulating the XML before conversion. We updated XML nodes which needs to be an array even when we have single element using this. We used a Azure function to update the required XML attributes and then returned the XML for conversion in Logic Apps. Hope this helps someone.

How to add tag inside a nest depending on a variable while keeping rest of json

I'm failry new to jq and I've learned to do most things on my own but I'm hitting my head on my keyboard for this one. Look at the following json
JSON:
{
"importType": "Upsert",
"immediateDeployment": false,
"isIgnoreNulls": false,
"isOverwriteNullsOnly": false,
"isPreferredandSync": false,
"outputLayout": {
"fields": [
{
"name": "TEMP_KEY",
"type": "String",
"length": "2000",
"displayName": "TEMP_KEY"
},
{
"name": "LoadSeqNum",
"type": "String",
"length": "2000",
"displayName": "LoadSeqNum"
}
]
}
}
What I'm trying to do is inside of .outputLayout.fields[] I want to create a new pair called "isIdentifier" where it is true if the .outputLayout.fields[].name is LoadSeqNum and false if it's not but I need to keep the rest of the json just as it is. So target should look as following:
Goal:
{
"importType": "Upsert",
"immediateDeployment": false,
"isIgnoreNulls": false,
"isOverwriteNullsOnly": false,
"isPreferredandSync": false,
"outputLayout": {
"fields": [
{
"name": "TEMP_KEY",
"type": "String",
"length": "2000",
"displayName": "TEMP_KEY"
"isIdentifier": false
},
{
"name": "LoadSeqNum",
"type": "String",
"length": "2000",
"displayName": "LoadSeqNum"
"isIdentifier": true
}
]
}
}
I tried this:
jq '.outputLayout.fields[] | . + {"isIdentifier": (if (.name)=="LoadSeqNum" then true else false end)}'
But of course I'm missing all the higher level things. When I try to do:
.outputLayout.fields[].isIdentifier=(if (.outputLayout.fields[].name)=="LoadSeqNum" then true else false end)
I get the whole thing twice, once with both true and the other one with both false. I understand why it's doing that but I'm having a tough time figuring out what would work. Any help or point in right direction?
.outputLayout.fields[] |= (.isIdentifier = (.displayName == "LoadSeqNum") )
Or equivalently but perhaps a little less cryptically:
.outputLayout.fields |= map( .isIdentifier = (.displayName == "LoadSeqNum") )

How to make a "patternProperty" required in JSON Schema (Ruby)

Consider the following JSON :
{
"1234abcd" : {
"model" : "civic"
"made" : "toyota"
"year" : "2014"
}
}
consider another JSON :
{
"efgh56789" : {
"model" : "civic"
"made" : "toyota"
"year" : "2014"
}
}
the outermost alphanumeric key will vary and required, if the key was fixed; let's say "identifier" then the schema was straightforward, however since the key-name is variable, we have to use patternProperties, how can I come up with a schema that captures these requirement for the outermost key:
property name (key) is variable
required
alphanumeric lowercase
using json-schema : https://github.com/ruby-json-schema/json-schema in ruby.
The best you can do to require properties when those properties are variable is to use minProperties and maxProperties. If you want to say there must be one and only one of these alphanumeric keys in your object, you can use the following schema. If you want to say there has to be at least one, you could just leave out maxProperties.
{
"type": "object",
"patternProperties": {
"^[a-z0-9]+$": {
"type": "object",
"properties": {
"model": { "type": "string" },
"make": { "type": "string" },
"year": { "type": "string" }
},
"required": ["model", "make", "year"]
}
},
"additionalProperties": false,
"maxProperties": 1,
"minProperties": 1
}
You may have to change the regular expression to fit your valid keys:
{
"patternProperties": {
"^[a-zA-Z0-9]*$":{
"properties": {
"model":{"type":"string"},
"made":{"type":"string"},
"year":{"type":"string"}
}
}
},
"additionalProperties":false
}