Exec.ScanStruct does not allow embedded pointers

[ruzz311]

After working with @andymoon we discovered that ScanStruct does not allow embedded pointers in a struct. It looks like the work was completed for Exec.ScanStructs but was not applied to for the single item return.

Simple example of the issue:

package main

// ... imports ....

type testCrudActionNoTagsItem struct {
    Address string
    Name    string
}

type testEmbeddedPtrCrudActionItem struct {
    *testCrudActionItem
    PhoneNumber string `db:"phone_number"`
    Age         int64  `db:"age"`
}

func main() {
    // exec := exec.newCrudExec(...)
    embeddedPtr := &testEmbeddedPtrCrudActionItem{}
    found, err = exec.ScanStruct(&embeddedPtr)
    if err != nil {
        // This error happens:  "reflect: indirection through nil pointer to embedded struct"
        panic(err)
    }
}

[doug-martin]

Resolved by #20