(SP: 1) Cooperation model validation

[Roman-Peretiatko]

Description

There should be the following validation rules for Cooperation model:

• offer must be required
• initiator must be required
• initiatorRole must be required
• receiver must be required
• receiverRole must be required
• additionalInfo must have a length in range 30-1000
• proficiencyLevel must be required
• price must be required and have min length that equals 1
• needAction must be required

Acceptance Criteria

• all of the rules above must be addded