Add custom behaviour to DataModelUtils.saveModel

[aleSuglia]

Hello,

using the saveModel method of the DataModelUtils it is not possible to specify a field delimiter that is used to write the lines on the file.

In order to be consistent with the loading procedure (implemented by SimpleParser), the method that can be used to save the model should allow users to specify the field delimiter. Do you think that it is an appropriate request?

P.S.
Why do you insert a "-1" as an additional column? Is it required?

Best,
Alessandro

[abellogin]

Good point!
DMU should receive a field delimiter in both methods.

The "-1" is added to have the same field generated with a DataModel or a TemporalDataModel.

Best,
Alejandro

[aleSuglia]

I have implemented a fix for this issue in my fork. Here there is the related commit: aleSuglia@e9f996f

[alansaid]

@aleSuglia perfect! Please do a pull request an we'll merge it.