DOC-4510 updated single field example

Author: andy-stark-redis

content/integrate/redis-data-integration/data-pipelines/transform-examples/redis-add-field-example.md

@@ -31,15 +31,16 @@ database (the optional `db` value here corresponds to the
 `sources.<source-name>.connection.database` value defined in
 [`config.yaml`]({{< relref "/integrate/redis-data-integration/data-pipelines/data-pipelines#the-configyaml-file" >}})).
 
-In the `transform` section, the `add_field` transformation adds an extra field called `fullname`
-to the object, which is created by concatenating the existing `firstname` and `lastname` fields using
-a [SQL expression](https://www.simplilearn.com/tutorials/sql-tutorial/concat-function-in-sql).
-You can also specify `jmespath` as the `language` if you prefer to create the new
-field with a [JMESPath](https://jmespath.org/) expression
+In the `transform` section, the `add_field` transformation adds an extra field called `localphone`
+to the object, which is created by removing the country and area code from the `phone`
+field with the `regex_replace()` [JMESPath](https://jmespath.org/) function.
+You can also specify `sql` as the `language` if you prefer to create the new
+field with an [SQL](https://en.wikipedia.org/wiki/SQL) expression.
 
 The `output` section specifies `hash` as the `data_type` to write to the target, which
 overrides the default setting of `target_data_type` defined in `config.yaml`. Also, the
-`output.with.key` section specifies a custom key format of the form `cust:<customerid>`.
+`output.with.key` section specifies a custom key format of the form `cust:<id>` where
+the `id` part is generated by the `uuid()` function.
 
 The full example is shown below:
 
@@ -50,16 +51,16 @@ source:
 transform:
   - uses: add_field
     with:
-      expression: concat(firstname, ' ', lastname)
-      field: fullname
-      language: sql
+      expression: regex_replace(phone, '\+[0-9]+ (\([0-9]+\) )?', '')
+      field: localphone
+      language: jmespath
 output:
   - uses: redis.write
     with:
       connection: target
       data_type: hash
       key:
-        expression: concat(['cust:', customerid])
+        expression: concat(['cust:', uuid()])
         language: jmespath
 ```
 
@@ -68,34 +69,33 @@ using [`redis-cli`]({{< relref "/develop/connect/cli" >}}), you would
 see something like the following:
 
 ```
-> hgetall cust:14
  1) "customerid"
- 2) "14"
+ 2) "27"
  3) "firstname"
- 4) "Mark"
+ 4) "Patrick"
  5) "lastname"
- 6) "Philips"
- 7) "company"
- 8) "Telus"
- 9) "address"
-10) "8210 111 ST NW"
+ 6) "Gray"
+.
+.
+17) "phone"
+18) "+1 (520) 622-4200"
 .
 .
 ```
 
-Using the job file above, the data also includes the new `fullname` field:
+Using the job file above, the data also includes the new `localphone` field:
 
 ```
- 1) "customerid"
- 2) "14"
+  1) "customerid"
+ 2) "27"
  3) "firstname"
- 4) "Mark"
+ 4) "Patrick"
  5) "lastname"
- 6) "Philips"
+ 6) "Gray"
  .
  .
-27) "fullname"
-28) "Mark Philips"
+23) "localphone"
+24) "622-4200"
 ```
 
 ## Add multiple fields