// add an model and it's field to parse result
func (v Visitor) add(model, table, field, col string) {
if table == "" {
table = strings2.ToSnake(model)
}
if col == "" {
col = strings2.ToSnake(field)
}
t, has := v.Models[model]
if !has {
t = &Table{Name: table, Fields: sortedmap.New(), initialed: true}
v.Models[model] = t
} else if t.Fields.Indexes == nil {
t.Name = table
t.Fields = sortedmap.New()
}
t.Fields.Set(field, col)
}
// parseModel will first use field tag as column name, the tag key is 'column',
// if no tag specified, use field name's camel_case, disable a field or model
// by set '-' as field tag value
func parseModel(v Model, db *DB) *Table {
var nocache bool
if nc, is := v.(Nocacher); is {
nocache = nc.Nocache()
}
if c, is := v.(Columner); is {
return newTable(v.Table(), c.Columns(), nocache)
}
typ := reflect2.IndirectType(v)
num := typ.NumField()
cols := make([]string, 0)
for i := 0; i < num; i++ {
field := typ.Field(i)
col := strings2.ToSnake(field.Name)
b, err := strconv.ParseBool(field.Tag.Get("nocache"))
if err == nil {
nocache = b
}
if nocache {
break
}
if !field.Anonymous ||
field.Type.Kind() != reflect.Struct {
colTag := field.Tag.Get("column")
if colTag == "-" {
continue
}
if colTag != "" {
col = colTag
}
cols = append(cols, col)
}
}
return newTable(
v.Table(),
slices.FitCapToLenString(cols),
nocache,
)
}