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+// Copyright 2012 James Cooper. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+// Package gorp provides a simple way to marshal Go structs to and from
+// SQL databases. It uses the database/sql package, and should work with any
+// compliant database/sql driver.
+//
+// Source code and project home:
+// https://github.com/go-gorp/gorp
+
+package gorp
+
+import "reflect"
+
+// ColumnMap represents a mapping between a Go struct field and a single
+// column in a table.
+// Unique and MaxSize only inform the
+// CreateTables() function and are not used by Insert/Update/Delete/Get.
+type ColumnMap struct {
+ // Column name in db table
+ ColumnName string
+
+ // If true, this column is skipped in generated SQL statements
+ Transient bool
+
+ // If true, " unique" is added to create table statements.
+ // Not used elsewhere
+ Unique bool
+
+ // Query used for getting generated id after insert
+ GeneratedIdQuery string
+
+ // Passed to Dialect.ToSqlType() to assist in informing the
+ // correct column type to map to in CreateTables()
+ MaxSize int
+
+ DefaultValue string
+
+ fieldName string
+ gotype reflect.Type
+ isPK bool
+ isAutoIncr bool
+ isNotNull bool
+}
+
+// Rename allows you to specify the column name in the table
+//
+// Example: table.ColMap("Updated").Rename("date_updated")
+//
+func (c *ColumnMap) Rename(colname string) *ColumnMap {
+ c.ColumnName = colname
+ return c
+}
+
+// SetTransient allows you to mark the column as transient. If true
+// this column will be skipped when SQL statements are generated
+func (c *ColumnMap) SetTransient(b bool) *ColumnMap {
+ c.Transient = b
+ return c
+}
+
+// SetUnique adds "unique" to the create table statements for this
+// column, if b is true.
+func (c *ColumnMap) SetUnique(b bool) *ColumnMap {
+ c.Unique = b
+ return c
+}
+
+// SetNotNull adds "not null" to the create table statements for this
+// column, if nn is true.
+func (c *ColumnMap) SetNotNull(nn bool) *ColumnMap {
+ c.isNotNull = nn
+ return c
+}
+
+// SetMaxSize specifies the max length of values of this column. This is
+// passed to the dialect.ToSqlType() function, which can use the value
+// to alter the generated type for "create table" statements
+func (c *ColumnMap) SetMaxSize(size int) *ColumnMap {
+ c.MaxSize = size
+ return c
+}