sqlboiler/cmds/select.go
Patrick O'brien 47c5be1038 Removed unused test files, added comments to cmds
* Added comments to all cmds files
* Removed unused test files
* Removed unimplemented command 'update'
2016-02-24 18:53:34 +10:00

68 lines
1.7 KiB
Go

package cmds
import (
"fmt"
"text/template"
"github.com/pobri19/sqlboiler/dbdrivers"
"github.com/spf13/cobra"
)
// init the "select" command
func init() {
SQLBoiler.AddCommand(selectCmd)
selectCmd.Run = selectRun
}
var selectCmd = &cobra.Command{
Use: "select",
Short: "Generate select statement helpers from table definitions",
}
// selectRun executes the select command, and generates the select statement
// boilerplate from the select file.
func selectRun(cmd *cobra.Command, args []string) {
err := outHandler(generateSelects())
if err != nil {
errorQuit(err)
}
}
// generateSelects returns a slice of each template execution result.
// Each of these results holds a select statement generated from the select template.
func generateSelects() [][]byte {
t, err := template.New("select.tpl").Funcs(template.FuncMap{
"makeGoColName": makeGoColName,
"makeGoVarName": makeGoVarName,
"makeSelectParamNames": makeSelectParamNames,
}).ParseFiles("templates/select.tpl")
if err != nil {
errorQuit(err)
}
outputs, err := processTemplate(t)
if err != nil {
errorQuit(err)
}
return outputs
}
// makeSelectParamNames takes a []DBTable and returns a comma seperated
// list of parameter names with for the select statement template.
// It also uses the table name to generate the "AS" part of the statement, for
// example: var_name AS table_name_var_name, ...
func makeSelectParamNames(tableName string, data []dbdrivers.DBTable) string {
var paramNames string
for i := 0; i < len(data); i++ {
paramNames = fmt.Sprintf("%s%s AS %s", paramNames, data[i].ColName,
makeDBColName(tableName, data[i].ColName),
)
if len(data) != i+1 {
paramNames = paramNames + ", "
}
}
return paramNames
}