Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / jinzhu / gorm / dialect_sqlite3.go

diff --git a/vendor/github.com/jinzhu/gorm/dialect_sqlite3.go b/vendor/github.com/jinzhu/gorm/dialect_sqlite3.go
new file mode 100755 (executable)
index 0000000..5f96c36
--- /dev/null
+++ b/vendor/github.com/jinzhu/gorm/dialect_sqlite3.go
@@ -0,0 +1,107 @@
+package gorm
+
+import (
+       "fmt"
+       "reflect"
+       "strings"
+       "time"
+)
+
+type sqlite3 struct {
+       commonDialect
+}
+
+func init() {
+       RegisterDialect("sqlite3", &sqlite3{})
+}
+
+func (sqlite3) GetName() string {
+       return "sqlite3"
+}
+
+// Get Data Type for Sqlite Dialect
+func (s *sqlite3) DataTypeOf(field *StructField) string {
+       var dataValue, sqlType, size, additionalType = ParseFieldStructForDialect(field, s)
+
+       if sqlType == "" {
+               switch dataValue.Kind() {
+               case reflect.Bool:
+                       sqlType = "bool"
+               case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
+                       if s.fieldCanAutoIncrement(field) {
+                               field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
+                               sqlType = "integer primary key autoincrement"
+                       } else {
+                               sqlType = "integer"
+                       }
+               case reflect.Int64, reflect.Uint64:
+                       if s.fieldCanAutoIncrement(field) {
+                               field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
+                               sqlType = "integer primary key autoincrement"
+                       } else {
+                               sqlType = "bigint"
+                       }
+               case reflect.Float32, reflect.Float64:
+                       sqlType = "real"
+               case reflect.String:
+                       if size > 0 && size < 65532 {
+                               sqlType = fmt.Sprintf("varchar(%d)", size)
+                       } else {
+                               sqlType = "text"
+                       }
+               case reflect.Struct:
+                       if _, ok := dataValue.Interface().(time.Time); ok {
+                               sqlType = "datetime"
+                       }
+               default:
+                       if IsByteArrayOrSlice(dataValue) {
+                               sqlType = "blob"
+                       }
+               }
+       }
+
+       if sqlType == "" {
+               panic(fmt.Sprintf("invalid sql type %s (%s) for sqlite3", dataValue.Type().Name(), dataValue.Kind().String()))
+       }
+
+       if strings.TrimSpace(additionalType) == "" {
+               return sqlType
+       }
+       return fmt.Sprintf("%v %v", sqlType, additionalType)
+}
+
+func (s sqlite3) HasIndex(tableName string, indexName string) bool {
+       var count int
+       s.db.QueryRow(fmt.Sprintf("SELECT count(*) FROM sqlite_master WHERE tbl_name = ? AND sql LIKE '%%INDEX %v ON%%'", indexName), tableName).Scan(&count)
+       return count > 0
+}
+
+func (s sqlite3) HasTable(tableName string) bool {
+       var count int
+       s.db.QueryRow("SELECT count(*) FROM sqlite_master WHERE type='table' AND name=?", tableName).Scan(&count)
+       return count > 0
+}
+
+func (s sqlite3) HasColumn(tableName string, columnName string) bool {
+       var count int
+       s.db.QueryRow(fmt.Sprintf("SELECT count(*) FROM sqlite_master WHERE tbl_name = ? AND (sql LIKE '%%\"%v\" %%' OR sql LIKE '%%%v %%');\n", columnName, columnName), tableName).Scan(&count)
+       return count > 0
+}
+
+func (s sqlite3) CurrentDatabase() (name string) {
+       var (
+               ifaces   = make([]interface{}, 3)
+               pointers = make([]*string, 3)
+               i        int
+       )
+       for i = 0; i < 3; i++ {
+               ifaces[i] = &pointers[i]
+       }
+       if err := s.db.QueryRow("PRAGMA database_list").Scan(ifaces...); err != nil {
+               return
+       }
+       if pointers[1] != nil {
+               name = *pointers[1]
+       }
+       return
+}