9 197 PUT_VALUE_CHECK

LANSA Technical

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9.197 PUT_VALUE_CHECK

Þ Note: Built-In Function Rules.

Creates/amends a "list of values" DICTIONARY or FILE level validation check into the data dictionary or file definition of the nominated field.

When adding a FILE level validation check to a field, the file involved must have been previously placed into an edit session by the START_FILE_EDIT Built-In Function.

All argument values passed to this Built-In Function are validated exactly as if they had been entered through the online validation check definition screen panels.

Normal authority and task tracking rules apply to the use of this Built-In Function.

For more information refer to Field Rules/Triggers in the LANSA for i User Guide.

Þ This is a Specialized Built-In Function for use in a Development Environment only.

For use with

LANSA for i

YES

Do not use on IBM i in an RDMLX partition.

Visual LANSA for Windows

YES

Visual LANSA validation is not as rigorous as that performed by LANSA for i.

Visual LANSA for Linux

NO

 

 

 

Arguments

No

Type

Req/ Opt

Description

Min Len

Max Len

Min Dec

Max Dec

1

A

Req

Level of validation check.

D = Dictionary level

F = File level

1

1

 

 

2

A

Req

Name of field in dictionary to which validation rule is to be applied.

1

10

 

 

3

N

Req

Sequence number of check.

1

3

0

0

4

A

Req

Description of check.

1

30

 

 

5

A

Req

Enable check for ADD.

Y = Check performed on ADD

U = Check performed on ADDUSE

N = Check not performed on ADD

1

1

 

 

6

A

Req

Enable check for CHANGE.

Y = Check performed on CHG

U = Check performed on CHGUSE

N = Check not performed on CHG

1

1

 

 

7

A

Req

Enable check for DELETE.

Y = Enable check.

N = Do not enable check.

1

1

 

 

8

A

Req

Action if check is true.

NEXT Perform next check

ERROR Issue fatal error

ACCEPT = Accept value and do no more checking.

4

6

 

 

9

A

Req

Action if check is false.

NEXT Perform next check

ERROR Issue fatal error

ACCEPT = Accept value and do no more checking.

4

6

 

 

10

A

Req

Message file details

Details of error message to be issued from a message file. Message file details should be formatted as follows:

From - To   Description

1 - 7   Error Message Number

8 - 17   Message File Name

18 - 27   Message File Library.
If message text is used, pass this argument as blanks.

27

27

 

 

11

A

Req

Message text.

1

80

 

 

12

L

Req

Working list to contain list values.

The calling RDML function must provide a working list with an aggregate entry length of exactly 20 bytes and at most 50 list value entries may be specified.

Each list entry sent should be formatted as follows:

Bytes 1-20: List value

20

20

 

 

 

 

Return Values

No

Type

Req/ Opt

Description

Min Len

Max Len

Min Dec

Max Dec

1

A

Req

Return code

OK = validation check defined

ER = fatal error detected

In case of "ER" return code error message(s) are issued automatically. When a file edit session is involved it is ended automatically without commitment.

2

2

 

 

 

 

Example

A user wants to put a "list of values" validation check for a specific field, without going through the LANSA options provided on the "Field Control Menu" that enables the user to put a "list of values" validation check.

*********  Define arguments and lists
DEFINE     FIELD(#LEVEL) TYPE(*CHAR) LENGTH(1) LABEL('Level')
DEFINE     FIELD(#FIELD) TYPE(*CHAR) LENGTH(10) LABEL('Field')
DEFINE     FIELD(#SEQNUM) TYPE(*DEC) LENGTH(3) DECIMALS(0) LABEL('Sequence #')
DEFINE     FIELD(#DESCR) TYPE(*CHAR) LENGTH(30) LABEL('Description')
DEFINE     FIELD(#RETCOD) TYPE(*CHAR) LENGTH(2) LABEL('Return code')
DEFINE     FIELD(#ENBADD) TYPE(*CHAR) LENGTH(1) LABEL('Enable ADD')
DEFINE     FIELD(#ENBCHG) TYPE(*CHAR) LENGTH(1) LABEL('Enable CHG')
DEFINE     FIELD(#ENBDLT) TYPE(*CHAR) LENGTH(1) LABEL('Enable DLT')
DEFINE     FIELD(#TRUE) TYPE(*CHAR) LENGTH(6) LABEL('Action if True')
DEFINE     FIELD(#FALSE) TYPE(*CHAR) LENGTH(6) LABEL('Action if False')
DEFINE     FIELD(#MSGDET) TYPE(*CHAR) LENGTH(27) LABEL('Message Detail')
DEFINE     FIELD(#MSGTXT) TYPE(*CHAR) LENGTH(80) LABEL('Message Text')
DEFINE     FIELD(#LSTVAL) TYPE(*CHAR) LENGTH(20) LABEL('List value')
DEF_LIST   NAME(#VALWRK) FIELDS((#LSTVAL)) TYPE(*WORKING) ENTRYS(50)
DEF_LIST   NAME(#VALBRW) FIELDS((#LSTVAL)) ENTRYS(50)
GROUP_BY   NAME(#VALCHK) FIELDS((#LEVEL) (#FIELD) (#SEQNUM) (#DESCR) (#ENBADD) (#ENBCHG) (#ENBDLT) (#TRUE) (#FALSE) (#MSGDET) (#MSGTXT))
*********  Initialize Browse list
CLR_LIST   NAMED(#VALBRW)
INZ_LIST   NAMED(#VALBRW) NUM_ENTRYS(50) WITH_MODE(*CHANGE)
*********  Clear Working list
BEGIN_LOOP     
CLR_LIST   NAMED(#VALWRK)
*********  Request Validation check details
REQUEST    FIELDS((#VALCHK)) BROWSELIST(#VALBRW)
*********  Load list of values working list
SELECTLIST NAMED(#VALBRW)
ADD_ENTRY  TO_LIST(#VALWRK)
ENDSELECT     
*********  Execute Built-In Function - PUT_VALUE_CHECK
USE        BUILTIN(PUT_VALUE_CHECK) WITH_ARGS(#LEVEL #FIELD #SEQNUM #DESCR #ENBADD #ENBCHG #ENBDLT #TRUE #FALSE #MSGDET #MSGTXT #VALWRK) TO_GET(#RETCOD)
*********  Put "list of values" validation check was successful
IF         COND('#RETCOD *EQ ''OK''')
MESSAGE    MSGTXT('Put "list of values" validation check(s) was successful')
*********  Put "list of values" failed
ELSE     
IF         COND('#RETCOD *EQ ''ER''')
MESSAGE    MSGTXT('Put "list of values" validation check(s) failed')
ENDIF     
ENDIF     
END_LOOP     
 

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