UHS calculator set correct IMT

[Laurentiu D.]

Traceback (most recent call last):
  File "/usr/bin/openquake", line 163, in <module>
    args.config_file, user_name=getpass.getuser())
  File "/usr/lib/pymodules/python2.7/openquake/engine.py", line 830, in import_job_profile
    job_profile = _prepare_job(params, sections, user_name)
  File "/usr/lib/pymodules/python2.7/django/db/transaction.py", line 217, in inner
    res = func(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openquake/engine.py", line 591, in _prepare_job
    job_profile = _get_job_profile(input_set, calc_mode, job_type, owner)
  File "/usr/lib/pymodules/python2.7/django/db/transaction.py", line 217, in inner
    res = func(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openquake/engine.py", line 567, in _get_job_profile
    job_profile.save()
  File "/usr/lib/pymodules/python2.7/django/db/models/base.py", line 460, in save
    self.save_base(using=using, force_insert=force_insert, force_update=force_update)
  File "/usr/lib/pymodules/python2.7/django/db/models/base.py", line 553, in save_base
    result = manager._insert(values, return_id=update_pk, using=using)
  File "/usr/lib/pymodules/python2.7/django/db/models/manager.py", line 195, in _insert
    return insert_query(self.model, values, **kwargs)
  File "/usr/lib/pymodules/python2.7/django/db/models/query.py", line 1436, in insert_query
    return query.get_compiler(using=using).execute_sql(return_id)
  File "/usr/lib/pymodules/python2.7/django/db/models/sql/compiler.py", line 791, in execute_sql
    cursor = super(SQLInsertCompiler, self).execute_sql(None)
  File "/usr/lib/pymodules/python2.7/django/db/models/sql/compiler.py", line 735, in execute_sql
    cursor.execute(sql, params)
  File "/usr/lib/pymodules/python2.7/django/db/backends/postgresql_psycopg2/base.py", line 44, in execute
    return self.cursor.execute(query, args)
django.db.utils.IntegrityError: new row for relation "oq_job_profile" violates check constraint "period_is_set"
------------ Comment:
Currently the UHS calculator works only the IMT is set to PGA;

[Muharem Hrnjadovic (al-maisan)]

The db constraint for uiapi.oq_job_profile.period is wrong

        CHECK(((imt = 'sa' AND calc_mode != 'uhs') AND (period IS NOT NULL))
              OR ((imt != 'sa' OR calc_mode = 'uhs') AND (period IS NULL))),

we should not even consider the IMT

[Muharem Hrnjadovic (al-maisan)]

The IMT config.gem parameter should be ignored for UHS type calculations.