Self-Efficacy and Relationships, thinking about a personal research interest.

I know we have been talking about collective efficacy, but recently I have been curious about the connection between relationships and self-efficacy particularly in classroom settings. However, despite my strong feelings that these things are related I have struggled to find research that explores these two concepts. In knowing that close teacher-student relationships and close peer relationships are significantly related to positive school outcomes (school liking, behavioral engagement, academic achievement) I have begun to wonder about how self-efficacy fits in. At first I felt that it might be that self-efficacy mediates the relationship between relationships and academic outcomes; however, there is one study showing that there is no direct relationship between peer liking and academic self-efficacy. Further, there are a limited number of studies connecting close teacher relationships to future academic self-efficacy. I am curious about what everyone else thinks. How would you draw the relationship between self-efficacy, close relationships (peers and teachers) and academic outcomes?