Updates to create job to handle scheduling

- If the job JSON contains a scheduling date then the new 'job_status" column is set to "scheduled"
- the date is persisted on the JOB row in the database
- Also the job WILL NOT be placed onto the queue of jobs. This is deferred to a later celery beat task.

app/job/rest.py

@@ -27,6 +27,8 @@ from app.schemas import (
 
 from app.celery.tasks import process_job
 
+from app.models import JOB_STATUS_SCHEDULED, JOB_STATUS_PENDING
+
 from app.utils import pagination_links
 
 job = Blueprint('job', __name__, url_prefix='/service/<uuid:service_id>/job')
@@ -105,7 +107,15 @@ def create_job(service_id):
         raise InvalidRequest(errors, status_code=400)
 
     data.update({"template_version": template.version})
+
     job = job_schema.load(data).data
+
+    if job.scheduled_for:
+        job.job_status = JOB_STATUS_SCHEDULED
+
     dao_create_job(job)
-    process_job.apply_async([str(job.id)], queue="process-job")
+
+    if job.job_status == JOB_STATUS_PENDING:
+        process_job.apply_async([str(job.id)], queue="process-job")
+
     return jsonify(data=job_schema.dump(job).data), 201