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Merge pull request #477 from kylemcc/read_or_create
Add a ReadOrCreate method:
This commit is contained in:
commit
8296713ba4
14
orm/orm.go
14
orm/orm.go
@ -74,6 +74,20 @@ func (o *orm) Read(md interface{}, cols ...string) error {
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return nil
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}
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// Try to read a row from the database, or insert one if it doesn't exist
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func (o *orm) ReadOrCreate(md interface{}, col1 string, cols ...string) (bool, int64, error) {
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cols = append([]string{col1}, cols...)
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mi, ind := o.getMiInd(md, true)
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err := o.alias.DbBaser.Read(o.db, mi, ind, o.alias.TZ, cols)
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if err == ErrNoRows {
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// Create
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id, err := o.Insert(md)
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return (err == nil), id, err
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}
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return false, ind.Field(mi.fields.pk.fieldIndex).Int(), err
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}
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// insert model data to database
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func (o *orm) Insert(md interface{}) (int64, error) {
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mi, ind := o.getMiInd(md, true)
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@ -1642,3 +1642,41 @@ func TestTransaction(t *testing.T) {
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throwFail(t, AssertIs(num, 1))
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}
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func TestReadOrCreate(t *testing.T) {
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u := &User{
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UserName: "Kyle",
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Email: "kylemcc@gmail.com",
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Password: "other_pass",
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Status: 7,
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IsStaff: false,
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IsActive: true,
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}
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created, pk, err := dORM.ReadOrCreate(u, "UserName")
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throwFail(t, err)
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throwFail(t, AssertIs(created, true))
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throwFail(t, AssertIs(u.UserName, "Kyle"))
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throwFail(t, AssertIs(u.Email, "kylemcc@gmail.com"))
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throwFail(t, AssertIs(u.Password, "other_pass"))
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throwFail(t, AssertIs(u.Status, 7))
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throwFail(t, AssertIs(u.IsStaff, false))
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throwFail(t, AssertIs(u.IsActive, true))
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throwFail(t, AssertIs(u.Created.In(DefaultTimeLoc), u.Created.In(DefaultTimeLoc), test_Date))
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throwFail(t, AssertIs(u.Updated.In(DefaultTimeLoc), u.Updated.In(DefaultTimeLoc), test_DateTime))
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nu := &User{UserName: u.UserName, Email: "someotheremail@gmail.com"}
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created, pk, err = dORM.ReadOrCreate(nu, "UserName")
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throwFail(t, err)
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throwFail(t, AssertIs(created, false))
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throwFail(t, AssertIs(nu.Id, u.Id))
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throwFail(t, AssertIs(pk, u.Id))
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throwFail(t, AssertIs(nu.UserName, u.UserName))
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throwFail(t, AssertIs(nu.Email, u.Email)) // should contain the value in the table, not the one specified above
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throwFail(t, AssertIs(nu.Password, u.Password))
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throwFail(t, AssertIs(nu.Status, u.Status))
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throwFail(t, AssertIs(nu.IsStaff, u.IsStaff))
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throwFail(t, AssertIs(nu.IsActive, u.IsActive))
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dORM.Delete(u)
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}
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@ -23,6 +23,7 @@ type Fielder interface {
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// orm struct
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type Ormer interface {
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Read(interface{}, ...string) error
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ReadOrCreate(interface{}, string, ...string) (bool, int64, error)
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Insert(interface{}) (int64, error)
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InsertMulti(int, interface{}) (int64, error)
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Update(interface{}, ...string) (int64, error)
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