Servicenow gliderecord example

servicenow gliderecord example

I got the idea from a post of a Service-now customer admin, Garrett Griffin. So, thanks to Garrett for the inspiration. I think this is worth sharing with a larger group of users. First, the visual representation. This actually is very simple to get to, although it might not appear like you think it would.

As you can see, the list grouping shows the distinct values, as well as a count of distinct values and counts of items underneath individual groupings. Of course, this information is often times more useful when you can gather it in a script. The following script example returns the same type of data as shown in the screenshot above.

Use this with extreme caution! Glad you found it useful Mark! Great write up on something that can be difficult to figure out when you need it. Hi, This is Angela Doss. I am new to Service Now. I am trying to figure out how to query tables using Gliderecords. I dont have knowledge of Gliderecords but I do have JavaScript experience. Hey Angela, Welcome!

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I wrote a post to cover most of the common GlideRecord calls. You can also ask on the ServiceNow forums for help. Is there any way to use this functionality in a List Collector filter? I think what you could do in that case would be to query for and display the groups that the user was already a member of and then move them to the right side of the slushbucket.

That would leave the remainder in the left side. Another option would be to set the filter of the list collector to filter out the groups that the user is already a member of, similar to a reference qualifier. Then you could set the list collector filter as shown here. I guess they could check themselves but that seems like extra effort. It will accomplish the same thing but will look a bit uglier.

GlideRecord - Update [ServiceNow]

For this situation, you could probably just hide the filter completely and avoid the ugliness as well. Hi Mark, adding on to this discussion, do you know of a way via script to then count how many distinct values there are? For instance, in your example above there are 9 distinct values for the OS.

There might be a more efficient way, but a simple way would be to use my code above, but then add to a counter variable inside of the while loop instead of printing out the results.The most common and fundamental scripting used in ServiceNow is GlideRecord.

Alter and reuse these scripts found in this post for your ServiceNow implementation. Important Note: Always run GlideRecord statements in a development instance first and make sure they work correctly before using in production!

GlideRecord - Global. Using GlideRecord to Query Tables. This will return multiple records, because a while statement is used to cycle through the query results.

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This will return one record, because a if statement is used to cycle through the query results. This is good if you just want to find one record, however the query would have returned seven items, which isn't completely efficent.

The setLimit statement helps performance, because only one record is returned with the query. Using an encoded query is often easier than multiple addQuery lines. You can also use Copy Query to help figure out your encoded query content which is helpful. I prefer to use an encoded query instead of this, but there are situations where this is easier. If you are doing an update statement in your script, it is good to be extra careful. Comment out your update statement and add a log statement to check the script for accuracy before actually using it.

servicenow gliderecord example

Here is an example on how to avoid this:. If you are doing an delete statement in your script, it is good to be extra careful. Comment out your delete statement and add a log statement to check the script for accuracy before actually using it. You can use similar GildeRecord scripts on the client side, except you should enclose them in a GlideAjax Query. In the example below, it uses a Script Include and Client Script to set the Department field on a form based on the Requested For user.

SNEClientUtil' ; ga.We are experimenting with new training content delivery methods. This tutorial blog post is one of those experiments. We are very interested in your feedback. Please let us know what you think about this format and the content in the comments below.

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With GlideRecord queries, you can find any set of records you need in ServiceNow. Not all queries are easy to write, though, especially if you need to work with date fields or OR operators. Lists have a condition builder to create more complex query logic. Developers can use the addEncodedQuery method to take the encoded query from a filter and apply it in a script. The topics in this post build on concepts in the GlideRecord concepts in the Server-side Scripting module.

In this post, you create a Business Rules that uses an encoded query for a date search. You then update the Business Rule with a complex query. When a Hardware Asset is changed to a State of In stock and a Substate of Available, you want to get a list of computers that could potentially be replaced by this newly available hardware. Replaceable hardware for this scenario is hardware purchased more than six years ago.

While you could build this query with knowledge of the correct methods to work with dates, you use an encoded query to get the results. Replace the contents of the script field with this script. You add the encoded query to this script later. NOTE : A list of replaceable hardware could be added to a task to make it more useful. You add the list to the Comments field here for simplicity.

Add a comment describing the filter you applied as a translation for your encoded query. Your colleagues and your future self will thank you. Make note of how many records are in the list and the asset tags for a couple of the old hardware assets. Right-click the end of the filter breadcrumb and select the Copy query menu item.

Did you do the hands-on exercise in this blog? Click here to let us know! Update the query to also list hardware assets that are in maintenace and have a past due warranty expiration. Use this screenshot to build the filter to create the encoded query. If you need help, see the Answers section at the bottom of this post for a sample script. Use the filter builder to build complex queries. You can then copy that encoded query in a script instead of building out a complex series of addQuery and addOrCondition statements.

Encoded queries also remove the need to know underlying values for choice lists or methods to convert date values. Challenge : Here is an example script for a Business Rule with the more complex encoded query.

Powered by Hugo. Guided: Create a Business Rule to find replaceable hardware assets by Purchased date. Challenge: Update the Business Rule to use a more complex query for replaceable hardware.

NOTE : This exercise uses demo data that may vary in your instance. Create a Business Rule to Find Replaceable Hardware Assets When a Hardware Asset is changed to a State of In stock and a Substate of Available, you want to get a list of computers that could potentially be replaced by this newly available hardware.This is an excellent page to keep bookmarked! An easy way to identify the encoded query string to use is to create a filter or a module with the query parameters you want to use, and then hover over the link or breadcrumb and look at the URL.

Is there a way to query for a date? Such as current. You can build the query you want in a module or filter definition to see what the encoded query should look like. SN seems to be all scripting from the get go with limited use of GUIs for configuration. Thanks for the comment. Hopefully some of the content here helps you to get going a little bit faster.

I know that the SNC documentation team is really focusing right now on scripting documentation so what you see on the wiki should be getting better by the day.

You might check out these forum links for some more information about SNC scripting basics. In reference to the Or query — is there any documentation about what a QueryCondition object is, and what its other functions are?

There are a couple more examples that I could probably share though. I find the encodedquery to be extremely helpful especially when my query includes things like created this week or created before a specific date. Then I know for sure I have the right query string. Question: If I run a GlideRecord query and then want to add another condition to the query and rerun it, is that possible? Not that I would do the following but just as an example.

One thing to note about updating a reference field to null is that it has to be done as described here:. Thanks so much for posting this info -it is really helpful!. Here is an example of what we wre trying to accomplish.

Did you ever determine a way to do it. The only other way I can think of doing it is to create two separate queries and then combine the results not very pretty but easy enough I suppose. However, if i leave the line as is, i wont see the update. Anyone have any thoughts? This cheat sheet covers the most frequently used GlideRecord operations.

All explanations and examples are easy to follow. It saved me huge amount of time which I may have spent looking through the Service-Now Wiki pages. Can you describe the scenario or area of the tool where this would be used? I know this was asked a long time ago but here is how you print the current query: gs. So I created an addEncodedQuery and it produced the correct data on the display list but any further filtering on the list is ignored. Is there a solution to these nested conditions, I am currently on Fuji and look to upgrade if required?

Hey Peter, this question is probably better suited for ServiceNow support or the ServiceNow community. But this is not working.

GlideRecord

How can I reference the manager id to return the Manager name as the Approver? There are some queries that doesnt seem to be in this post which is very nice to have.

With Service portal — async GR is very wanted. Thanks very much for your suggestions — I am very much intrigued with the capabilities of these constructions. Could you please demonstrate how they could be used? This kinda GlideRecords should only be used Client side as the new Service portal doesnt allow sync calls.

I tried your code to insert an incident record, it is inserting some record when creating one record. Method or in general, discussion of how to update reference fields or insert new references.In order to determine if getValue is truly a best practice superior to other GlideRecord field string coercions, I collected and analyzeddata samples from ServiceNow records in the global scope of a Madrid Personal Developer Instance and compared the resulting types and values of 5 different methods:.

The oddest of the bunch was toString but it was still perfectly usable. The most important takeaway I can offer is this: know your return types and develop defensively. Follow that guideline, and any of the string coercion methods will work for you.

If you are interested, keep reading for further analysis and feel free to download the Get Value Analysis app to pull samples in your own instance to contribute to the conversation. More details in the toString analysis.

servicenow gliderecord example

I often hear it taught that when using GlideRecord, developers should use the getValue function. But very smart people that I trust kept insisting getValue was the best practice. In total, I captureddata samples for each of the 5 different tested methods. And of course I wrote an application for this so you can run the same tests against your own data sets and decide for yourself.

In a language like Java, accessor and mutator methods like getValue and setValue are considered a part of life. In particular, I want to focus on 3 and 4. Sweet Christmas, indeed. By the way, this same concept applies to using an assignment operator on a GlideElement property.

Try running this as a background script:. Type coercion IS essential when working with GlideElement in loops especially. This means we often encounter situations where we have to coerce to a primitive data type.

String coercion in JavaScript is performed implicitly plus-quote-quote or explicitly with the String constructor or toString functions. This was an especially important distinction when once upon a time ServiceNow had many functions which would expose a Java string object instead of a JavaScript string primitive.

Which brings me to the next reason that I dismiss. The fact is, best practices will almost always be highly contextual, nuanced, and often subject to change.Earlier this year, the blog visited the topic of GlideRecord.

I shall set my sites on the friend and close relative to GlideRecord, GlideAggregate. GlideAggregate is an extension of GlideRecord. These operations can be done with regular GlideRecord use, but with GlideAggregate, they are optimized around these use cases and offer significant efficiencies.

The similarities to GlideRecord will stand out if you are familiar with those.

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The format is very similar. The main addition in this example is the addition of the addAggregate. This function allows us to add one or more aggregates to our results. Any of the aggregate types can be mixed and matched in the same query. It accepts two parameters, the aggregate type, and the field column to operate on if needed. Interestingly the orderBy, which is also used in GlideRecords has an additional purpose of performing a group-by for aggregates.

The rest of the building for this example is the same process until we get inside the resultant query results in our while loop. You can see the results of running this.

There are five different categories and the counts of the number of records for each of those categories. The grouping happened as a result of the orderBy method that was utilized. Multiple orderBy can be used to subgroup the results into an as granular number of clusters as needed.

Our results show the orderBy caused grouping first on category, then on assigned to, and finally on state. The chained groupBy allows a great deal of flexibility in how and what use cases GlideAggregate can be helpful. The count and groupBy that was performed above is just one of the many uses available. It allows us to build a unique list of values. Often when writing scripts, it can be useful to know what the values of a particular field are, to then use in a GlideRecord process.

Understanding Client-Side GlideRecord

Now the script will be adjusted to showcase that use case. You could, query the table, loop through all the records, and build your user list to then place in the group. This would require searching and retrieving every record that has the ITIL role.

If you have done this, you will know there are many entries for the same user for the same role. GlideAggregate allows for a much faster building of the user list. Had GlideRecord been used for the users, our resultant script would have run many times slower. The performance difference is due to a large number of results that match compared to the small amount that is being sought. In my instance, I had 59 users that met the criteria, but across more than records.

The sub-second results 0. When looking at tables with even higher numbers, the increase can be more significant.This creates a variable called target which is a GlideRecord object for the incident table. The only parameter needed is the name of the table to be accessed.

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This issues the query to the database. Each call to next would load the next record which you would process and do whatever you want to do. Describes the operators that can be used within an addQuery request. For additional information on the operators that are available for filters and queries, see Operators available for filters and queries.

These examples demonstrate how to perform various GlideRecord queries. For additional information see GlideRecord. In order to query a table, first create an object for the table. This object is called a GlideRecord. To process all records from the incident table, add the following script: target. But that is not the common case. Most of the time you actually want to retrieve a specific record or a specific set of records, and you have some criteria query conditions that define the records you want to obtain.

For example, say you want to obtain all the incident records that have a priority value of 1. Here is the code that would accomplish that. Notice in the above code we added the line target. This is indicating that you only want the records where the priority field is equal to 1. We assume that the majority of queries that you will want to do will be equality queries, queries where you want to find records where a field is equal to a value.

Therefore we provide this format of the query and do not make you specify that you want an equals operation, we just assume it. In that case you have to provide us with the operator that you want to apply to priority and this is done by providing the operator in the addQuery request as is shown below.

Table 1. This operator does not retrieve empty fields. For empty values, use the operators "is empty" or "is not empty. The code example on the right, shows how to retrieve all configuration items that are classified as computers.


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