57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
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package migrate
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import (
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"fmt"
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"io/ioutil"
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"log"
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"strings"
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)
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func ExampleNewMigration() {
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// Create a dummy migration body, this is coming from the source usually.
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body := ioutil.NopCloser(strings.NewReader("dumy migration that creates users table"))
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// Create a new Migration that represents version 1486686016.
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// Once this migration has been applied to the database, the new
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// migration version will be 1486689359.
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migr, err := NewMigration(body, "create_users_table", 1486686016, 1486689359)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Print(migr.LogString())
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// Output:
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// 1486686016/u create_users_table
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}
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func ExampleNewMigration_nilMigration() {
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// Create a new Migration that represents a NilMigration.
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// Once this migration has been applied to the database, the new
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// migration version will be 1486689359.
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migr, err := NewMigration(nil, "", 1486686016, 1486689359)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Print(migr.LogString())
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// Output:
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// 1486686016/u <empty>
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}
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func ExampleNewMigration_nilVersion() {
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// Create a dummy migration body, this is coming from the source usually.
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body := ioutil.NopCloser(strings.NewReader("dumy migration that deletes users table"))
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// Create a new Migration that represents version 1486686016.
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// This is the last available down migration, so the migration version
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// will be -1, meaning NilVersion once this migration ran.
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migr, err := NewMigration(body, "drop_users_table", 1486686016, -1)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Print(migr.LogString())
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// Output:
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// 1486686016/d drop_users_table
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}
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