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feat(gorm/manager): Added gorm Manager (#126)
Signed-off-by: Flc゛ <four_leaf_clover@foxmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package manager | ||
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| import "gorm.io/gorm" | ||
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| type ConnectionFunc func() *gorm.DB | ||
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| type Manager struct { | ||
| *gorm.DB | ||
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| connections map[string]*gorm.DB | ||
| } | ||
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| func New(db *gorm.DB) *Manager { | ||
| return &Manager{ | ||
| DB: db, | ||
| connections: make(map[string]*gorm.DB), | ||
| } | ||
| } | ||
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| func (m *Manager) Register(name string, db *gorm.DB) { | ||
| m.connections[name] = db | ||
| } | ||
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| func (m *Manager) Conn(names ...string) *gorm.DB { | ||
| var name string | ||
| if len(names) > 0 { | ||
| name = names[0] | ||
| } | ||
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| if name == "" { | ||
| return m.DB | ||
| } | ||
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| if c, ok := m.connections[name]; ok { | ||
| return c | ||
| } | ||
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| panic("The connection [" + name + "] is not registered.") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| package manager | ||
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| import ( | ||
| "testing" | ||
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| "github.com/stretchr/testify/assert" | ||
| "gorm.io/gorm" | ||
| ) | ||
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| var ( | ||
| m *Manager | ||
| db1, db2, db3, db4 *gorm.DB | ||
| ) | ||
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| func init() { | ||
| m = New(db1) | ||
| m.Register("db2", db2) | ||
| m.Register("db3", db3) | ||
| m.Register("db4", db4) | ||
| } | ||
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| func TestManager(t *testing.T) { | ||
| assert.Equal(t, db1, m.DB) | ||
| assert.Equal(t, db1, m.Conn()) | ||
| assert.Equal(t, db2, m.Conn("db2")) | ||
| assert.Equal(t, db3, m.Conn("db3")) | ||
| assert.Equal(t, db4, m.Conn("db4")) | ||
| assert.Panics(t, func() { | ||
| m.Conn("db5") | ||
| }) | ||
| } | ||
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| func BenchmarkManager(b *testing.B) { | ||
| b.RunParallel(func(pb *testing.PB) { | ||
| for pb.Next() { | ||
| _ = m.DB | ||
| _ = m.Conn() | ||
| _ = m.Conn("db2") | ||
| _ = m.Conn("db3") | ||
| _ = m.Conn("db4") | ||
| } | ||
| }) | ||
| } |