Modifying existing DocTypes

Frappe Framework Customization
1

Hi.

I want to add a couple of extra fields to Supplier DocType…

However, if I update ERPNext using bench update, will my Supplier DocType get overwritten? Will it get overwritten on version upgrades? Is it better to create a new supplier docytype (such as Supplier2) and add the existing fields and then just use that form for new suppliers?

Thanks.

2

@abbas If you are self-hosted then:

The best way to add new fields and customizations is through “Customize Form”.
If you plan to update your production server then you can maintain those changes using fixtures.

3

Great thank you.

Currently, in test phase while I document everything. What do you mean by “fixtures”?

I assume on the next iterations ERPNext, I can simply “Bench Update” and everything should come across? including these custom fields? I don’t intent to touch any lines of code.

I was also under the impression my backup (via ERPNext/Cronjob) contains all these extra fields (I will test this)??

Thanks.

4

Check this: Schema modification export (custom fields)

5

@abbas Great question!
I’m going to “call a friend”, and tag @tmatteson @MichaelPinkowski and @nabinhait to this discussion.

Guys: you know this is one of my big hang-ups.

Has anything changed in the past year, in terms of supporting changes to DocTypes that are part of the main repository?

Any new methods to manage/merge DocType conflicts during updates (besides doing your own thing with git diff, SQL table compare, branches, etc?)

Or…does the community officially recommend that @abbas:

  • Create a “Supplier2” doctype, with a 1:1 relationship to Supplier doctype.
  • Add the columns he needs to Supplier2
  • Edit his form, so that data from both DocType is displayed on the screen simultaneously.
6

Thank you for the replies guys.

@brian_pond you missed adding “custom fields” @rodrigo.giacobelli mentioned. I have added a couple of fields in Supplier and the import template sees theses fields so its a big win!

I don’t require anything special with Supplier, just a couple of extra fields so I am not sure if Supplier2 is the way forward really? Does that not duplicate data?

I require extra fields in other areas (BOM, Customer etc) and custom fields will do the trick.

Thank you @rodrigo.giacobelli for the Schema export. Will be very useful looking at the backup/failover option. Currently I am thinking MariaDB sync (semisynchronous-replication)

Thank you guys, appreciate it.

7

Hi.

Continuing my testing, I have setup several custom fields in the core doctype and the forum suggests having a sepearte app to store these fields.

I have found New app on frappe which shows how to create a new app.

However, I have a couple of questions:

  1. How do I then push that to my private GIT respositry so I can develope in my desktop IDE
  2. When I update code (i.e. add new fields), will “bench update” also update this app or do I need to do a git pull ?
  3. Has anyone got an example of custom fields app I could take a look at?

Thank you!