Renaming a vector map doesn't rename the layer name in the dbln metadata file

[hcho]

The layer name in dbln is not renamed when renaming a vector map. For example, after renaming old to new:

g.rename vect=old,new

cat location/mapset/vector/new/dbln

prints

1/old|new|cat|database|pg

Expected output:

1/new|new|cat|database|pg

[mlennert]

Replying to hcho:

The layer name in dbln is not renamed when renaming a vector map. For example, after renaming old to new:

g.rename vect=old,new

cat location/mapset/vector/new/dbln

prints

1/old|new|cat|database|pg

Expected output:

1/new|new|cat|database|pg

Does the layer name necessarily have to correspond to the map name ? AFAIU, layer names are mostly used for direct OGR access. Internally in GRASS vector format, it's the layer number that is used. So I'm not sure I would call this a bug, but potentially an enhancement request for aesthetic reasons.

The same actually happens when you copy a map:

g.copy vect=roadsmajor,roads
Copie vector <roadsmajor@PERMANENT> vers <roads> dans le jeu de cartes
courant
GRASS 7.3.svn (nc_spm_08_grass7):~ > v.db.connect -p roadsmajor
Vector map <roadsmajor> is connected by:
layer <1/roadsmajor> table <roadsmajor> in database </home/mlennert/GRASSDATA/nc_spm_08_grass7/PERMANENT/sqlite/sqlite.db> through driver <sqlite> with key <cat>
GRASS 7.3.svn (nc_spm_08_grass7):~ > v.db.connect -p roads
Vector map <roads> is connected by:
layer <1/roadsmajor> table <roads> in database </home/mlennert/GRASSDATA/nc_spm_08_grass7/user1/sqlite/sqlite.db> through driver <sqlite> with key <cat>

I'll add a diff that seems to do the trick for me, but I'm not sure that this is really needed, nor if it is desirable. Martin introduced the layers names so he should probably have a look at it.

[martinl]

Any chance to apply diff in trunk?

[mlennert]

Replying to martinl:

Any chance to apply diff in trunk?

As I said; since you are the author of the layer name mechanism, I was leaving this to you for checking. ;-)