There's a problem that happens for Symfony 1 + sfDoctrineGuardPlugin that doesn't have a lot of information online. Getting to the point, the error message says: "Unknown column username", even when the column and field "username" is well defined (or it seems).
General review about "Solution Selling", the premium book that Michael Bosworth launched in 1995.
We will explain: the conceptual framework proposed to start Advisory Sales Processes of Services and Products Software, the sense of comprehensive Commercial focus, Needs and Phases of the Buyer, and a number of useful strategies to help during the sale cycle.
Michael Bosworth proposes to begin the Sale Process by defining some Strategies that build the Vision of Pain based on Customer Needs.
Mantis Bug Tracker and Redmine are two of the most popular Bug Trackers or Project Management tools out there. Both free and Open Source. So it's natural to think in a migration process between them. In this article we will talk about migrating from Mantis BT to Redmine and a few tips about that.
To approach the concept of leadership, previously it would be interesting to answer the first question that comes to mind:
What is leadership?
Leadership is the set of management skills that a person uses to influence the lifestyle of people or a workgroup, making this team work enthusiastically in achieving goals and objectives.