Development workflow//testing

Feature Suggestions
23

Hello,

We use holistics 4.0 and started migrating to AML 2.0.
We were facing the same kind of issue.

One way to do it (hacky solution :pensive:) is to create a model for example env.aml with the following code:

Model env {
  type: 'table'
  label: ''
  description: ''
  data_source_name: 'MY_DATASOURCE_TO_USE'
  table_name: 'MY_SCHEMA_PREFIX'
}

Then, all models can refer to the env model for defining the default datasource to use. Here is an example:

use env 

Model my_model {
  type: 'table'
  label: 'My model'
  description: ''
  data_source_name: env.data_source_name
  dimension field_1 {
    label: 'Field 1'
    type: 'number'
    hidden: false
    definition: @sql {{ #SOURCE.MY_FIELD_ID }};;
  }
  
  owner: '[email protected]'
  table_name: '"' + env.table_name + '_SCHEMA"."MY_TABLE"'
}

Datasets can force models to use a specific data_source_name :

use env {
  env_dev  
}

use models {
  my_model
}

Dataset my_dataset {
  label: 'My dataset
  description: ''
  data_source_name: env_dev.data_source_name
  models: [
    my_model
  ]
  relationships: [
    
  ]
  owner: '[email protected]'
}

Now, to make the data_source_name overriding working correctly, we will have to avoid using schema prefix because it can’t be overrided at the dataset layer as the data_source_name.

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