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generated_column.yo.go
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generated_column.yo.go
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// Code generated by yo. DO NOT EDIT.
// Package models contains the types.
package models
import (
"context"
"fmt"
"cloud.google.com/go/spanner"
"google.golang.org/grpc/codes"
)
// GeneratedColumn represents a row from 'GeneratedColumns'.
type GeneratedColumn struct {
ID int64 `spanner:"ID" json:"ID"` // ID
FirstName string `spanner:"FirstName" json:"FirstName"` // FirstName
LastName string `spanner:"LastName" json:"LastName"` // LastName
FullName string `spanner:"FullName" json:"FullName"` // FullName
}
func GeneratedColumnPrimaryKeys() []string {
return []string{
"ID",
}
}
func GeneratedColumnColumns() []string {
return []string{
"ID",
"FirstName",
"LastName",
"FullName",
}
}
func GeneratedColumnWritableColumns() []string {
return []string{
"ID",
"FirstName",
"LastName",
}
}
func (gc *GeneratedColumn) columnsToPtrs(cols []string) ([]interface{}, error) {
ret := make([]interface{}, 0, len(cols))
for _, col := range cols {
switch col {
case "ID":
ret = append(ret, yoDecode(&gc.ID))
case "FirstName":
ret = append(ret, yoDecode(&gc.FirstName))
case "LastName":
ret = append(ret, yoDecode(&gc.LastName))
case "FullName":
ret = append(ret, yoDecode(&gc.FullName))
default:
return nil, fmt.Errorf("unknown column: %s", col)
}
}
return ret, nil
}
func (gc *GeneratedColumn) columnsToValues(cols []string) ([]interface{}, error) {
ret := make([]interface{}, 0, len(cols))
for _, col := range cols {
switch col {
case "ID":
ret = append(ret, yoEncode(gc.ID))
case "FirstName":
ret = append(ret, yoEncode(gc.FirstName))
case "LastName":
ret = append(ret, yoEncode(gc.LastName))
case "FullName":
ret = append(ret, yoEncode(gc.FullName))
default:
return nil, fmt.Errorf("unknown column: %s", col)
}
}
return ret, nil
}
// newGeneratedColumn_Decoder returns a decoder which reads a row from *spanner.Row
// into GeneratedColumn. The decoder is not goroutine-safe. Don't use it concurrently.
func newGeneratedColumn_Decoder(cols []string) func(*spanner.Row) (*GeneratedColumn, error) {
return func(row *spanner.Row) (*GeneratedColumn, error) {
var gc GeneratedColumn
ptrs, err := gc.columnsToPtrs(cols)
if err != nil {
return nil, err
}
if err := row.Columns(ptrs...); err != nil {
return nil, err
}
return &gc, nil
}
}
// Insert returns a Mutation to insert a row into a table. If the row already
// exists, the write or transaction fails.
func (gc *GeneratedColumn) Insert(ctx context.Context) *spanner.Mutation {
values, _ := gc.columnsToValues(GeneratedColumnWritableColumns())
return spanner.Insert("GeneratedColumns", GeneratedColumnWritableColumns(), values)
}
// Update returns a Mutation to update a row in a table. If the row does not
// already exist, the write or transaction fails.
func (gc *GeneratedColumn) Update(ctx context.Context) *spanner.Mutation {
values, _ := gc.columnsToValues(GeneratedColumnWritableColumns())
return spanner.Update("GeneratedColumns", GeneratedColumnWritableColumns(), values)
}
// InsertOrUpdate returns a Mutation to insert a row into a table. If the row
// already exists, it updates it instead. Any column values not explicitly
// written are preserved.
func (gc *GeneratedColumn) InsertOrUpdate(ctx context.Context) *spanner.Mutation {
values, _ := gc.columnsToValues(GeneratedColumnWritableColumns())
return spanner.InsertOrUpdate("GeneratedColumns", GeneratedColumnWritableColumns(), values)
}
// Replace returns a Mutation to insert a row into a table, deleting any
// existing row. Unlike InsertOrUpdate, this means any values not explicitly
// written become NULL.
func (gc *GeneratedColumn) Replace(ctx context.Context) *spanner.Mutation {
values, _ := gc.columnsToValues(GeneratedColumnWritableColumns())
return spanner.Replace("GeneratedColumns", GeneratedColumnWritableColumns(), values)
}
// UpdateColumns returns a Mutation to update specified columns of a row in a table.
func (gc *GeneratedColumn) UpdateColumns(ctx context.Context, cols ...string) (*spanner.Mutation, error) {
// add primary keys to columns to update by primary keys
colsWithPKeys := append(cols, GeneratedColumnPrimaryKeys()...)
values, err := gc.columnsToValues(colsWithPKeys)
if err != nil {
return nil, newErrorWithCode(codes.InvalidArgument, "GeneratedColumn.UpdateColumns", "GeneratedColumns", err)
}
return spanner.Update("GeneratedColumns", colsWithPKeys, values), nil
}
// FindGeneratedColumn gets a GeneratedColumn by primary key
func FindGeneratedColumn(ctx context.Context, db YODB, id int64) (*GeneratedColumn, error) {
key := spanner.Key{yoEncode(id)}
row, err := db.ReadRow(ctx, "GeneratedColumns", key, GeneratedColumnColumns())
if err != nil {
return nil, newError("FindGeneratedColumn", "GeneratedColumns", err)
}
decoder := newGeneratedColumn_Decoder(GeneratedColumnColumns())
gc, err := decoder(row)
if err != nil {
return nil, newErrorWithCode(codes.Internal, "FindGeneratedColumn", "GeneratedColumns", err)
}
return gc, nil
}
// ReadGeneratedColumn retrieves multiples rows from GeneratedColumn by KeySet as a slice.
func ReadGeneratedColumn(ctx context.Context, db YODB, keys spanner.KeySet) ([]*GeneratedColumn, error) {
var res []*GeneratedColumn
decoder := newGeneratedColumn_Decoder(GeneratedColumnColumns())
rows := db.Read(ctx, "GeneratedColumns", keys, GeneratedColumnColumns())
err := rows.Do(func(row *spanner.Row) error {
gc, err := decoder(row)
if err != nil {
return err
}
res = append(res, gc)
return nil
})
if err != nil {
return nil, newErrorWithCode(codes.Internal, "ReadGeneratedColumn", "GeneratedColumns", err)
}
return res, nil
}
// Delete deletes the GeneratedColumn from the database.
func (gc *GeneratedColumn) Delete(ctx context.Context) *spanner.Mutation {
values, _ := gc.columnsToValues(GeneratedColumnPrimaryKeys())
return spanner.Delete("GeneratedColumns", spanner.Key(values))
}