Add a way to lookup table columns by name

bdb/table.go

@@ -10,3 +10,14 @@ type Table struct {
 
 	IsJoinTable bool
 }
+
+// GetColumn by name. Panics if not found (for use in templates).
+func (t Table) GetColumn(name string) (col Column) {
+	for _, c := range t.Columns {
+		if c.Name == name {
+			return c
+		}
+	}
+
+	panic("hello")
+}

bdb/table_test.go

@@ -0,0 +1,37 @@
+package bdb
+
+import "testing"
+
+func TestGetColumn(t *testing.T) {
+	t.Parallel()
+
+	table := Table{
+		Columns: []Column{
+			Column{Name: "one"},
+		},
+	}
+
+	c := table.GetColumn("one")
+
+	if c.Name != "one" {
+		t.Error("didn't get column")
+	}
+}
+
+func TestGetColumnMissing(t *testing.T) {
+	t.Parallel()
+
+	table := Table{
+		Columns: []Column{
+			Column{Name: "one"},
+		},
+	}
+
+	defer func() {
+		if r := recover(); r == nil {
+			t.Error("expected a panic failure")
+		}
+	}()
+
+	table.GetColumn("missing")
+}