feat: refactor data source models and update mapping functions for improved consistency

stackit/internal/services/postgresflexalpha/database/datasource.go

@@ -19,12 +19,6 @@ import (
 	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/postgresflexalpha"
 )
 
-// DataSourceModel maps the data source schema data.
-type DataSourceModel struct {
-	postgresflexalpha2.DatabaseModel
-	TerraformID types.String `tfsdk:"id"`
-}
-
 // Ensure the implementation satisfies the expected interfaces.
 var (
 	_ datasource.DataSource = &databaseDataSource{}
@@ -35,6 +29,12 @@ func NewDatabaseDataSource() datasource.DataSource {
 	return &databaseDataSource{}
 }
 
+// dataSourceModel maps the data source schema data.
+type dataSourceModel struct {
+	postgresflexalpha2.DatabaseModel
+	TerraformID types.String `tfsdk:"id"`
+}
+
 // databaseDataSource is the data source implementation.
 type databaseDataSource struct {
 	client       *postgresflexalpha.APIClient
@@ -89,7 +89,7 @@ func (r *databaseDataSource) Read(
 	req datasource.ReadRequest,
 	resp *datasource.ReadResponse,
 ) { // nolint:gocritic // function signature required by Terraform
-	var model DataSourceModel
+	var model dataSourceModel
 	diags := req.Config.Get(ctx, &model)
 	resp.Diagnostics.Append(diags...)
 	if resp.Diagnostics.HasError() {
@@ -141,7 +141,7 @@ func (r *databaseDataSource) Read(
 // getDatabaseByNameOrID retrieves a single database by ensuring either a unique ID or name is provided.
 func (r *databaseDataSource) getDatabaseByNameOrID(
 	ctx context.Context,
-	model *DataSourceModel,
+	model *dataSourceModel,
 	projectId, region, instanceId string,
 	diags *diag.Diagnostics,
 ) (*postgresflexalpha.ListDatabase, error) {