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Have extra control over your selection screen

The PARAMETERS and SELECT-OPTIONS already have some configuration options. But sometimes you need more control, more customising. Interestingly, although it’s not simple nor obvious, it can be done through a standard function module.

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Debug on a user without debug permissions

In a well protected system, normal users don’t have debug permissions. Very often, this makes it harder for ABAP programmers to help solve the users’ problems, not being able to debug directly in their session.

But there is a legit, albeit obscure, work-around for this problem.

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Edit standard programs without a key

Here we are again facing a dilemma: hide something because it is dangerous and someone can do bad things using this information or teach it because it would be condescending to presume the readers are not responsible enough to know it. Dictatorships usually go for the first: burning books, censorship, etc. Abapinho like to believe that its readers are responsible people and deserve the right to know.

Thus, here it is. No, it’s not a user manual on how to enrich uranium nor a formula for homemade nitroglycerin. But it’s something similar: a trick that allows you to change standard objects without the need for a key.

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Edit transport requests even if they don’t let you

As we all know, system adminstrators are very bad, cold blooded and cruel people. To prove it you just need to read the Bastard Operator from Hell.

We, ABAP programmers, are hopeless victims in the hands of these evil creatures.

But not always do we have to be smashed under their hairy fingers.

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Show values in SE16N without conversion exit

By default SE16N always shows the values in the external format, applying the conversion exit to all of them. Until recently, I used to go the ancient SE17 whenever I needed to see them in their internal format. But Rui Nunes told me how to do it in SE16N.

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Serialization – Clone Dolly in ABAP

A ovelha Dolly

This article was written by José Vília:

The Dolly sheep was alive in ABAP and I didn’t know about it.

Having created a class instance, I’d like to share it with another totally independent program to use it as if the instance had been created there.

It’s an ABAP Dolly sheep factory we’re talking about here, people. Serialization in the ABAP world.

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Abracadabra reveals secret parameter

Here’s a not very orthodox wat to deal with a report’s selection screen.

Sometimes you may need to have a special parameter which you prefer to hide from normal users but still need access to. Example: a flag to activate a debug/trace mode. I’ll show you how you can do this by just typing the magic word, ABRACADABRA.

It goes like this:


DATA: unhide_parameters TYPE flag.

PARAMETERS: p_debug AS CHECKBOX.

AT SELECTION-SCREEN.
  CASE sy-ucomm.
    WHEN 'ABRACADABRA'.
      unhide_parameters = abap_true.
    WHEN 'NORMAL'.
      CLEAR unhide_parameters.
  ENDCASE.

AT SELECTION-SCREEN OUTPUT.
  LOOP AT SCREEN.
    IF screen-name = 'P_DEBUG' AND unhide_parameters IS INITIAL.
      screen-active = 0.
      MODIFY SCREEN.
    ENDIF.
  ENDLOOP.

Just type ABRACADABRA when you’re at the selection screen and your secret parameter will magically show. If needed, you can then type NORMAL to make it disappear again.

O Abapinho saúda-vos.

ALV Grid built in error protocol

We’re all lazy. It’s just human. Programmers are human. We’re often lazy when it comes to the way we program something. And usually being lazy when making a program will result in someone else having more work when maintaining it.

Let he who is free of laziness throw the first rock.

I won’t!

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PlantUML – Finally UML became simple to use

Foreword

When I say that I like to use UML class diagrams to document my code, people think I’m crazy.

Introduction

The UML has gained a bad reputation because people think that, first you make the classes diagram in UML and only then write the program. But that was in 1996, when you the good practices said the first thing to do was the whole technical spec, even if no one really did it.

Nowadays, fortunately, we are no longer ashamed to say that the very act of programming is already in itself a way of drawing.

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Classe para garantir segurança em programação dinâmica

I recently found a program which was generating an SQL statement by concatenating several variables with fixed SQL parts. But, either by not paying attention or simple ignorance, the person who did it, thought it would make sense to associate a text-symbol to each of these variables with. Something like this:

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SALV consistency report

Sometimes a SALV has inconsistencies which can go unnoticed. For example, if its structure has an amount field which doesn’t have an associated currency field:

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Go into a transaction skipping its selection screen

Once again SAPGui surprises me with yet another obscure shortcut I didn’t know about.

Let’s use the customer display transaction XD03 as an example:

  1. Go into the transaction’s selection screen with /NXD03
  2. Fill in the customer number an press ENTER to display its details
  3. Do whatever it is you want to do there and get out of it
  4. Suddenly… you remember that you needed to do something else there
  5. Instead of /NXD03 type /*XD03
  6. You’re now automagically inside the transaction, already looking at the details of the last displayed customer

It’s surprising that no one ever told me about this before.

I also tried it with FB03 and it works so it probably works with most of the normal transactions. Unfortunately, it doesn’t work with the ones I use the most: SE24, SE38 e SE11. What a pity.

Now go and tell everyone about this!

Thank you Sérgio Fraga for the tip.

Photo credit: Leonard J Matthews.

Greetings from Abapinho.

Copy a Code Inspector variant to another system

In my current customer, I have three development systems. There used to be only one. And that’s where I customized and fine tuned the Code Inspector variant I use to run Abap Test Cockpit.

When the other two appeared, before manually copying the variant into them, I decided to investigate a little bit. Much to my surprise, I found in GitHun project upDOWNci which does exactly what I needed: export and import Code InspectorLars for making this small but useful tool. Actually, thank you for the dozens of useful tools you’ve already given us. They’re quite impressive.

Greetings from Abapinho.

Physical vs logical folders

If in your report called APP1 you need to save a file in a server folder (ex.: /export/app1/) and you don’t want it to be a selection screen parameter, how do you do it?

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Automatically close the doors you open

You’re in the editor. You type ( or [ or { or ‘ and SAP is dumb and doesn’t close it right away like a proper IDE would.

Well,

Click on the lower right corner icon which gives you access to the SAPGui options where you configure code templates.

In the formatting option, activate Enable Auto Brackets and voilá, SAP will now automatically close any doors you open.

I don’t see why this isn’t set by default.

Thank you, Sérgio Fraga for the tip.

Greetings from Abapinho.


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