Input validation

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Input validation

stan-9
 Have table that contains employee keys, paired up with work type keys
 (both foreign keys) and a 3rd column that you enter a billing rate in.
 Then I have a table where employees enter their work. I need to validate
 that the employee, work type pair exists, before allowing the new record
 to be inserted.

 Any thoughts as to good way to do this?


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Re: Input validation

Adrian Klaver-4
On 8/7/19 11:07 AM, stan wrote:
>   Have table that contains employee keys, paired up with work type keys
>   (both foreign keys) and a 3rd column that you enter a billing rate in.
>   Then I have a table where employees enter their work. I need to validate
>   that the employee, work type pair exists, before allowing the new record
>   to be inserted.
>
>   Any thoughts as to good way to do this?

INSERT UPDATE trigger:

https://www.postgresql.org/docs/11/sql-createtrigger.html

https://www.postgresql.org/docs/11/plpgsql-trigger.html
>
>


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Adrian Klaver
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lup
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Re: Input validation

lup
In reply to this post by stan-9

On 8/7/19 12:07 PM, stan wrote:
>   Have table that contains employee keys, paired up with work type keys
>   (both foreign keys) and a 3rd column that you enter a billing rate in.
>   Then I have a table where employees enter their work. I need to validate
>   that the employee, work type pair exists, before allowing the new record
>   to be inserted.
>
>   Any thoughts as to good way to do this?
>
>
Does the employee interactively specify the "work type" then some
time-spent value?

Can the work-type be chosen from a drop-down generated by

     select work_type from table where employee = <current user>

Otherwise you'll need a trigger on the insert into "enter their work"
table.  Sad thing here is the user has likely left the scene.



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Re: Input validation

Benedict Holland
I think a check will also work but I second triggers. 

Thanks,
~Ben

On Wed, Aug 7, 2019, 2:21 PM Rob Sargent <[hidden email]> wrote:

On 8/7/19 12:07 PM, stan wrote:
>   Have table that contains employee keys, paired up with work type keys
>   (both foreign keys) and a 3rd column that you enter a billing rate in.
>   Then I have a table where employees enter their work. I need to validate
>   that the employee, work type pair exists, before allowing the new record
>   to be inserted.
>
>   Any thoughts as to good way to do this?
>
>
Does the employee interactively specify the "work type" then some
time-spent value?

Can the work-type be chosen from a drop-down generated by

     select work_type from table where employee = <current user>

Otherwise you'll need a trigger on the insert into "enter their work"
table.  Sad thing here is the user has likely left the scene.