With the following code Arr::set($array, 'messages.to.email', $value);
That will generate an output like:
{
"messages": {
"subject": "this is out email",
"to": {
"email": "myemail#gmail.com"
}
}
}
My issue is that I need this output instead:
{
"messages": [{
"subject": "this is out email",
"to": {
"email": "myemail#gmail.com"
}
}]
}
Being messages an array of objects. I haven't been able to find a native way of doing it, so I'm thinking of manually adding something like messages[].to.email
Am I missing something? A magic helper or syntax? to achieve what I'm looking for?
If you used an index for the messages it would force it to be an array:
Arr::set($array, 'messages.0.to.email', $value);
This is just adding another level/container to this by specificying that there is something between 'messages' and 'to'. Could be named anything, but 0 is for zero indexed array here, which would be an array in JSON not an object.
Related
I have an JSON object with the structure below. When looping over key_two I want to create a new object that I will return. The returned object should contain a title with the value from key_one's name where the id of key_one matches the current looped over node from key_two.
Both objects contain other keys that also will be included but the first step I can't figure out is how to grab data from a sibling object while looping and match it to the current value.
{
"key_one": [
{
"name": "some_cool_title",
"id": "value_one",
...
}
],
"key_two": [
{
"node": "value_one",
...
}
],
}
This is a good example of a 'join' operation (in SQL terms). JSONata supports this in a path expression. See https://docs.jsonata.org/path-operators#-context-variable-binding
So in your example, you could write:
key_one#$k1.key_two[node = $k1.id].{
"title": $k1.name
}
You can then add extra fields into the resulting object by referencing items from either of the original objects. E.g.:
key_one#$k1.key_two[node = $k1.id].{
"title": $k1.name,
"other_one": $k1.other_data,
"other_two": other_data
}
See https://try.jsonata.org/--2aRZvSL
I seem to have found a solution for this.
[key_two].$filter($$.key_one, function($v, $k){
$v.id = node
}).{"title": name ? name : id}
Gives:
[
{
"title": "value_one"
},
{
"title": "value_two"
},
{
"title": "value_three"
}
]
Leaving this here if someone have a similar issue in the future.
Most of the other methods in the language api, such as analyze_syntax, analyze_sentiment etc, have the ability to return the constituent elements like
sentiment.score
sentiment.magnitude
token.part_of_speech.tag
etc etc etc....
but I have not found a way to return name and confidence in isolation from classify_text. It doesn't look like it's possible but that seems weird. Am missing something? Thanks
The language.documents.classifyText method returns a ClassificationCategory object which contains name and confidence. If you only want one of the fields you can filter by categories/name or categories/confidence. As an example I executed:
POST https://language.googleapis.com/v1/documents:classifyText?fields=categories%2Fname&key={YOUR_API_KEY}
{
"document": {
"content": "this is a test for a StackOverflow question. I get an error because I need more words in the document and I don't know what else to say",
"type": "PLAIN_TEXT"
}
}
Which returns:
{
"categories": [
{
"name": "/Science/Computer Science"
},
{
"name": "/Computers & Electronics/Programming"
},
{
"name": "/Jobs & Education"
}
]
}
Direct link to API explorer for interactive testing of my example (change content, filters, etc.)
I'm trying to read individual value from be json array object to display in the page. I have tried with below code but couldn't make it. Please advise what am i doing wrong here.
Apperciate your help.
You can get the length of a JavaScript array via its property length. To access the array Reference in your object, you can use dot notation.
In combination, the following should do what you expect:
var obj = {
"Reference": [
{
"name": "xxxxxxxx",
"typeReference": {
"articulation": 0,
"locked": false,
"createdBy": {
"userName": "System",
},
"lastModifiedBy": {
"userName": "System",
},
"lastModified": 1391084398660,
"createdOn": 1391084398647,
"isSystem": true
},
...
},
...
]
};
console.log(obj.Reference.length);
In case you are actually dealing with a JSON string, not a JavaScript object, you will need to parse it first via JSON.parse().
You get the length of an array by simply access the length attribute.
For example [0,1,2,3].length === 4.
If you just want to loop through the array, use forEach or map instead of a for loop. It's safer, cleaner, less hassle and you don't meed to know the length.
E.g.
[0,1,2,3].forEach(num => console.log(num))
I'm trying to decide upon the best format of response for my API. I need to return a reports response which provides information on the report itself and the fields contained on it. Fields can be of differing types, so there can be: SelectList; TextArea; Location etc..
They each use different properties, so "SelectList" might use "Value" to store its string value and "Location" might use "ChildItems" to hold "Longitude" "Latitude" etc.
Here's what I mean:
"ReportList": [
{
"Fields": [
{
"Id": {},
"Label": "",
"Value": "",
"FieldType": "",
"FieldBankFieldId": {},
"ChildItems": [
{
"Item": "",
"Value": ""
}
]
}
]
}
The problem with this is I'm expecting the users to know when a value is supposed to be null. So I'm expecting a person looking to extract the value from "Location" to extract it from "ChildItems" and not "Value". The benefit to this however, is it's much easier to query for things than the alternative which is the following:
"ReportList": [
{
"Fields": [
{
"SelectList": [
{
"Id": {},
"Label": "",
"Value": "",
}
]
"Location": [
{
"Id": {},
"Label": "",
"Latitude": "",
"Longitude": "",
"etc": "",
}
]
}
]
}
So this one is a reports list that contains a list of fields which on it contains a list of fieldtype for every fieldtype I have (15 or something like that). This is opposed to just having a list of reports which has a list of fields with a "fieldtype" enum which I think is fairly easy to manipulate.
So the Question: Which format is best for a response? Any alternatives and comments appreciated.
EDIT:
To query all fields by fieldtype in a report and get values with the first way it would go something like this:
foreach(field in fields)
{
switch(field.fieldType){
case FieldType.Location :
var locationValue = field.childitems;
break;
case FieldType.SelectList:
var valueselectlist = field.Value;
break;
}
The second one would be like:
foreach(field in fields)
{
foreach(location in field.Locations)
{
var latitude = location.Latitude;
}
foreach(selectList in field.SelectLists)
{
var value= selectList.Value;
}
}
I think the right answer is the first one. With the switch statement. It makes it easier to query on for things like: Get me the value of the field with the id of this guid. It just means putting it through a big switch statement.
I went with the first one because It's easier to query for the most common use case. I'll expect the client code to put it into their own schema if they want to change it.
I am developing a web app using Codeigniter and MongoDB.
In the database I got a document that look like this:
{
"_id": {
"$id": "4f609932615a935c18r000000"
},
"basic": {
"name": "The project"
},
"members": [
{
"user_name": "john",
"role": "user",
"created_at": {
"sec": 1331730738,
"usec": 810000
}
},
{
"user_name": "markus",
"role": "user",
"created_at": {
"sec": 1331730738,
"usec": 810000
}
}
]
}
I need to search this document using both user_name and role. Right now when I am using the below code I get both. I only want to get array items matching both user_name and role.
$where = array (
'_id' => new MongoId ($account_id),
'members.user_id' => new MongoId ($user_id),
'members.role' => $role
);
$this -> cimongo -> where ($where) -> count_all_results ('accounts');
This is an old question, but as of MongoDB 2.2 or so you can use the $ positional operator in a projection so that only the matched array element is included in the result.
So you can do something like this:
$this->cimongo->where($where)->select(array('members.$'))->get('accounts');
This is a repeat of this question:
Get particular element from mongoDB array
Also you might want to use $elemMatch
http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-ValueinanArray
Here is the rub -- you aren't going to be able to get the array items that match because mongo is going to return the entire document if those elements match. You will have to parse out the code client side. Mongo doesn't have a way to answer, "return only the array that matches."