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Re: Multi-Table Insert/Update Strategy - Use Functions/Procedures?

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On this track (possibly unrelated)...can a view be used as part of the multi table update
Just curious


On Wed, 2016-01-27 at 14:48 -0500, Don Parris wrote:
I have several tables related to people and their contact information, and want db users to be able to add or update a given person and their respective contact information in one step, and get all the information into the correct tables.


I think I am ok with setting the privileges on the tables and columns as appropriate to allow each group to select, insert and update the appropriate data, and I can create appropriate views for them to view data they need to see. However, I am not really sure about the best way to allow someone to actually insert/update the data.


For instance, given the following tables:

core.category
contact.entity

contact.person

contact.entity_category --linking table between entity and category

contact.person_entity --linking table between entity & person
... --other tables for address and phone contact info



I haven't really given much thought as to how such a procedure might look, but I'm guessing something along the lines of:
CREATE FUNCTION record_insert() RETURNS integer AS $$

BEGIN
INSERT statements... --need PK from entity & category tables to insert into entity_category table.

END

$$

language plpgsql;


Ideally, the db user just says "I want to enter Joe Public, and Joe is affiliated with the Widget Corp entity, and has the phone numbers..."



Am I on the right track, or is there some better way to set this up?  My understanding is that views really aren't meant for insert/update operations, and I have seen on the web that using views to insert/update is a bit tricky - and still requires a procedure with a rule on the view.



Thanks,

Don

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Minister, Security/FM Coordinator, Free Software Advocate
http://dcparris.net/
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