{{- $tableNameSingular := .Table.Name | singular | titleCase -}}
{{- $varNameSingular := .Table.Name | singular | camelCase -}}
{{- $colDefs := sqlColDefinitions .Table.Columns .Table.PKey.Columns -}}
{{- $pkNames := $colDefs.Names | stringMap .StringFuncs.camelCase -}}
{{- $pkArgs := joinSlices " " $pkNames $colDefs.Types | join ", " -}}
{{- $schemaTable := .Table.Name | .SchemaTable -}}
// UpdateG a single {{$tableNameSingular}} record. See Update for
// whitelist behavior description.
func (o *{{$tableNameSingular}}) UpdateG(whitelist ...string) error {
	return o.Update(boil.GetDB(), whitelist...)
}

// UpdateGP a single {{$tableNameSingular}} record.
// UpdateGP takes a whitelist of column names that should be updated.
// Panics on error. See Update for whitelist behavior description.
func (o *{{$tableNameSingular}}) UpdateGP(whitelist ...string) {
	if err := o.Update(boil.GetDB(), whitelist...); err != nil {
		panic(boil.WrapErr(err))
	}
}

// UpdateP uses an executor to update the {{$tableNameSingular}}, and panics on error.
// See Update for whitelist behavior description.
func (o *{{$tableNameSingular}}) UpdateP(exec boil.Executor, whitelist ... string) {
	err := o.Update(exec, whitelist...)
	if err != nil {
		panic(boil.WrapErr(err))
	}
}

// Update uses an executor to update the {{$tableNameSingular}}.
// Whitelist behavior: If a whitelist is provided, only the columns given are updated.
// No whitelist behavior: Without a whitelist, columns are inferred by the following rules:
// - All columns are inferred to start with
// - All primary keys are subtracted from this set
// Update does not automatically update the record in case of default values. Use .Reload()
// to refresh the records.
func (o *{{$tableNameSingular}}) Update(exec boil.Executor, whitelist ... string) error {
	{{- template "timestamp_update_helper" . -}}

	var err error
	{{if not .NoHooks -}}
	if err = o.doBeforeUpdateHooks(exec); err != nil {
		return err
	}
	{{end -}}

	key := makeCacheKey(whitelist, nil)
	{{$varNameSingular}}UpdateCacheMut.RLock()
	cache, cached := {{$varNameSingular}}UpdateCache[key]
	{{$varNameSingular}}UpdateCacheMut.RUnlock()

	if !cached {
		wl := strmangle.UpdateColumnSet({{$varNameSingular}}Columns, {{$varNameSingular}}PrimaryKeyColumns, whitelist)

		cache.query = fmt.Sprintf("UPDATE {{$schemaTable}} SET %s WHERE %s",
			strmangle.SetParamNames("{{.LQ}}", "{{.RQ}}", {{if .Dialect.IndexPlaceholders}}1{{else}}0{{end}}, wl),
			strmangle.WhereClause("{{.LQ}}", "{{.RQ}}", {{if .Dialect.IndexPlaceholders}}len(wl)+1{{else}}0{{end}}, {{$varNameSingular}}PrimaryKeyColumns),
		)
		cache.valueMapping, err = queries.BindMapping({{$varNameSingular}}Type, {{$varNameSingular}}Mapping, append(wl, {{$varNameSingular}}PrimaryKeyColumns...))
		if err != nil {
			return err
		}
	}

	if len(cache.valueMapping) == 0 {
		return errors.New("{{.PkgName}}: unable to update {{.Table.Name}}, could not build whitelist")
	}

	values := queries.ValuesFromMapping(reflect.Indirect(reflect.ValueOf(o)), cache.valueMapping)

	if boil.DebugMode {
		fmt.Fprintln(boil.DebugWriter, cache.query)
		fmt.Fprintln(boil.DebugWriter, values)
	}

	result, err := exec.Exec(cache.query, values...)
	if err != nil {
		return errors.Wrap(err, "{{.PkgName}}: unable to update {{.Table.Name}} row")
	}

	if r, err := result.RowsAffected(); err == nil && r != 1 {
		return errors.Errorf("failed to update single row, updated %d rows", r)
	}

	if !cached {
		{{$varNameSingular}}UpdateCacheMut.Lock()
		{{$varNameSingular}}UpdateCache[key] = cache
		{{$varNameSingular}}UpdateCacheMut.Unlock()
	}

	{{if not .NoHooks -}}
	return o.doAfterUpdateHooks(exec)
	{{- else -}}
	return nil
	{{- end}}
}

// UpdateAllP updates all rows with matching column names, and panics on error.
func (q {{$varNameSingular}}Query) UpdateAllP(cols M) {
	if err := q.UpdateAll(cols); err != nil {
		panic(boil.WrapErr(err))
	}
}

// UpdateAll updates all rows with the specified column values.
func (q {{$varNameSingular}}Query) UpdateAll(cols M) error {
	queries.SetUpdate(q.Query, cols)

	_, err := q.Query.Exec()
	if err != nil {
		return errors.Wrap(err, "{{.PkgName}}: unable to update all for {{.Table.Name}}")
	}

	return nil
}

// UpdateAllG updates all rows with the specified column values.
func (o {{$tableNameSingular}}Slice) UpdateAllG(cols M) error {
	return o.UpdateAll(boil.GetDB(), cols)
}

// UpdateAllGP updates all rows with the specified column values, and panics on error.
func (o {{$tableNameSingular}}Slice) UpdateAllGP(cols M) {
	if err := o.UpdateAll(boil.GetDB(), cols); err != nil {
		panic(boil.WrapErr(err))
	}
}

// UpdateAllP updates all rows with the specified column values, and panics on error.
func (o {{$tableNameSingular}}Slice) UpdateAllP(exec boil.Executor, cols M) {
	if err := o.UpdateAll(exec, cols); err != nil {
		panic(boil.WrapErr(err))
	}
}

// UpdateAll updates all rows with the specified column values, using an executor.
func (o {{$tableNameSingular}}Slice) UpdateAll(exec boil.Executor, cols M) error {
	ln := int64(len(o))
	if ln == 0 {
		return nil
	}

	if len(cols) == 0 {
		return errors.New("{{.PkgName}}: update all requires at least one column argument")
	}

	colNames := make([]string, len(cols))
	args := make([]interface{}, len(cols))

	i := 0
	for name, value := range cols {
		colNames[i] = name
		args[i] = value
		i++
	}

	// Append all of the primary key values for each column
	for _, obj := range o {
		pkeyArgs := queries.ValuesFromMapping(reflect.Indirect(reflect.ValueOf(obj)), {{$varNameSingular}}PrimaryKeyMapping)
		args = append(args, pkeyArgs...)
	}

	sql := fmt.Sprintf(
		"UPDATE {{$schemaTable}} SET %s WHERE ({{.LQ}}{{.Table.PKey.Columns | join (printf "%s,%s" .LQ .RQ)}}{{.RQ}}) IN (%s)",
		strmangle.SetParamNames("{{.LQ}}", "{{.RQ}}", {{if .Dialect.IndexPlaceholders}}1{{else}}0{{end}}, colNames),
		strmangle.Placeholders(dialect.IndexPlaceholders, len(o) * len({{$varNameSingular}}PrimaryKeyColumns), len(colNames)+1, len({{$varNameSingular}}PrimaryKeyColumns)),
	)

	if boil.DebugMode {
		fmt.Fprintln(boil.DebugWriter, sql)
		fmt.Fprintln(boil.DebugWriter, args...)
	}

	result, err := exec.Exec(sql, args...)
	if err != nil {
		return errors.Wrap(err, "{{.PkgName}}: unable to update all in {{$varNameSingular}} slice")
	}

	if r, err := result.RowsAffected(); err == nil && r != ln {
		return errors.Errorf("failed to update %d rows, only affected %d", ln, r)
	}

	return nil
}