I am running a query to try and get a count of duplicate id records.
"song" is a subdocument which contains just an _id field in the database. After I run the query I am getting these strange characters in my console output, how come I am not able to get the actual id string that looks like, "555699e4ab3e43ec12accaf9"?
Those characters are the 12 byte id binary string.
And it's actually _id.id i.e. id property on the _id object which is an ObjectID.
Your 24 byte binary "555.." is _id itself, which converts to string automatically if you use it as one.
* more details on how object can be represented as a string: Object.prototype.toString()
Unfortunately for you, whatever IDE you're using is showing it as an object (which is actually what it really is).
Try console.log(util.inspect(results)) (be sure to require the util module)
In any case, console.log(result[0]._id) will give you the 24 byte hex string "5556...ccaf9".
If you don't want the _id which is an object, there's also a getter id which is a String by default.
console.log(typeof result[0]._id) //=> "object"
console.log(typeof result[0].id) //=> "string"
Related
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select from list by index ${locator_var} ${inp_msge_type}
--getting error as expected string, int found
select from list by index ${locator_var} 7
-----not getting any error
${inp_msge_type}----contains 7 from DB query the result is stored in this variable, to avoid hard coding we need to do this
Is there any way to write
Do not add links to screenshots of code, or error messages, and format the code pieces accordingly - use the ` (tick) symbol to surround them.
The rant now behind us, your issue is that the keyword Select From List By Index expects the type of the index argument to be a string.
When you called it
Select From List By Index ${locator_var} 7
, that "7" is actually a string (though it looks like a number), because this is what the framework defaults to on any typed text. And so it works.
When you get the value from the DB, it is of the type that the DB stores it with; and probably the table schema says it is int. So now you pass an int to the keyword - and it fails.
The fix is simple - just cast (convert) the variable to a string type:
${inp_msge_type}= Convert To String ${inp_msge_type}
, and now you can call the keyword as you did before.
Previously in the same collection, I have been using Mongodb's own generated id as a document's _id. However now due to some requirements, new data needs to have a predetermined _id, which will be generated from the hash of the data to be inserted.
So I generated the hash of the data using crypto as below
var saveId = crypto.createHash('sha256').update(saveIdContents).digest('hex');
var saveIdMongo = new mongoose.mongo.ObjectID(saveId);
but then it will return the error
Error: Argument passed in must be a single String of 12 bytes or a string of 24 hex characters at the line above. So is there anyway I can make crypto returns a string of 12 bytes or 24 hex characters?
ObjectID is a very specific data type, see https://docs.mongodb.com/manual/reference/method/ObjectId/#objectid
A valid ObjectID value is exactly 12 bytes.
MongoDB does not impose any restriction on the type of data that my be used for the _id field, so if you want to use a hash instead of an ObjectID, that is completely acceptable.
In other words, don't cast saveId to an ObjectId, just use that value directly.
So I have to go through a bunch of code to get some data from an iframe. the iframe has a lot of data but in there is an object called '_name'. the first key of name is 'extension_id' and its value is a big long string. the json object is enclosed in apostrophes. I have tried removing the apostrophes but still instead of 'extension_id_output' I get a single curly bracket. the json object looks something like this
Frame {
...
...
_name: '{"extension_id":"a big huge string that I need"} "a bunch of other stuff":"this is a valid json object as confirmed by jsonlint", "globalOptions":{"crev":"1.2.50"}}}'
}
it's a whole big ugly paragraph but I really just need the extension_id. so this is the code I'm currently using after attempt 100 or whatever.
var frames = await page.frames();
// I'm using puppeteer for this part but I don't think that's relevant overall.
var thing = frames[1]._name;
console.log(frames[1])
// console.log(thing)
thing.replace(/'/g, '"')
// this is to remove the apostrophes from the outside of the object. I thought that would change things before. it does not. still outputs a single {
JSON.parse(thing)
console.log(thing[0])
instead of getting a big huge string that I need or whatever is written in extension_id. I get a {. that's it. I think that is because the whole object starts with a curly bracket. this is confirmed to me because console.log(thing[2]) prints e. so what's going on? jsonlint says this is a valid json object but maybe it's just a big string and I should be doing some kind of split to grab whaat's between the first : and the first ,. I'm really not sure.
For two reasons:
object[0] doesn't return the value an object's "first property", it returns the value of the property with the name "0", if any (there probably isn't in your object); and
Because it's JSON, and when you're dealing with JSON in JavaScript code, you are by definition dealing with a string. (More here.) If you want to deal with the object that the JSON describes, parse it.
Here's an example of parsing it and getting the value of the extension_id property from it:
const parsed = JSON.parse(frames[1]._name);
console.log(parsed.extension_id); // The ID
I am trying to validate number value which will include integer as well as float values. Following is my implementation for the same.
Joi Schema.
const numcheckschema = Joi.object().keys({
v1:Joi.number().empty("").allow(null).default(99999),
v2:Joi.number().empty("").allow(null).default(99999),
v3:Joi.number().empty("").allow(null).default(99999)
})
Object
objnum={
v1:"15",
v2:"13.",
v3:"15"
}
objValidated = Joi.validate(objnum, numcheckschema);
console.log(objValidated);
When i execute the above mentioned code I get an error
ValidationError: child "v2" fails because ["v2" must be a number]
as per the documentation when we tries to pass any numeric value as a string it converts the values to number but here in this case my value is 13. which is not able to convert into number and throwing an error.
Is there any way by which we can convert this value to 13.0
You can use a regex in order to match numbers with a dot, for instance:
Joi.string().regex(/\d{1,2}[\,\.]{1}/)
And then combine both validations using Joi.alternatives:
Joi.alternatives().try([
Joi.number().empty("").allow(null),
Joi.string().regex(/\d{1,2}[\,\.]{1}/)
])
However, I think you may need to convert the payload to number using Number(string value). You need to check the payload type, if it isn't a Number, you need to convert it.
If you want to know more about the regex used in the example, you can test it in here: https://regexr.com/
My index has a string field containing a variable length random id. Obviously it shouldn't be analysed.
But I don't know much about elasticsearch especially when I created the index.
Today I tried a lot to filter documents based on the length of id, finally I got this groovy script:
doc['myfield'].values.size()
or
doc['myfield'].value.size()
both returns mysterious numbers, I think that's because of the field got analysed.
If it's really the case, is there any way to get the original length or fix the problem, without rebuild the whole index?
Use _source instead of doc. That's using the source of the document, meaning the initial indexed text:
_source['myfield'].value.size()
If possible, try to re-index the documents to:
use doc[field] on a not-analyzed version of that field
even better, find out the size of the field before you index the document and consider adding its size as a regular field in the document itself
Elasticsearch stores a string as tokenized in the data structure ( Field data cache )where we have script access to.
So assuming that your field is not not_analyzed , doc['field'].values will look like this
"In america" => [ "in" , "america" ]
Hence what you get from doc['field'].values is a array and not a string.
Now the story doesn't change even if you have a single token or have the field as not_analyzed.
"america" => [ "america" ]
Now to see the size of the first token , you can use the following request
{
"script_fields": {
"test1": {
"script": "doc['field'].values[0].size()"
}
}
}