sqlboiler/templates.go

150 lines
3.6 KiB
Go

package main
import (
"fmt"
"path/filepath"
"sort"
"strings"
"text/template"
"github.com/vattle/sqlboiler/bdb"
"github.com/vattle/sqlboiler/strmangle"
)
// templateData for sqlboiler templates
type templateData struct {
Tables []bdb.Table
Table bdb.Table
DriverName string
UseLastInsertID bool
PkgName string
StringFuncs map[string]func(string) string
}
type templateList struct {
*template.Template
}
type templateNameList []string
func (t templateNameList) Len() int {
return len(t)
}
func (t templateNameList) Swap(k, j int) {
t[k], t[j] = t[j], t[k]
}
func (t templateNameList) Less(k, j int) bool {
// Make sure "struct" goes to the front
if t[k] == "struct.tpl" {
return true
}
res := strings.Compare(t[k], t[j])
if res <= 0 {
return true
}
return false
}
// Templates returns the name of all the templates defined in the template list
func (t templateList) Templates() []string {
tplList := t.Template.Templates()
if len(tplList) == 0 {
return nil
}
ret := make([]string, 0, len(tplList))
for _, tpl := range tplList {
if name := tpl.Name(); strings.HasSuffix(name, ".tpl") {
ret = append(ret, name)
}
}
sort.Sort(templateNameList(ret))
return ret
}
// loadTemplates loads all of the template files in the specified directory.
func loadTemplates(dir string) (*templateList, error) {
pattern := filepath.Join(dir, "*.tpl")
tpl, err := template.New("").Funcs(templateFunctions).ParseGlob(pattern)
if err != nil {
return nil, err
}
return &templateList{Template: tpl}, err
}
// loadTemplate loads a single template file.
func loadTemplate(dir string, filename string) (*template.Template, error) {
pattern := filepath.Join(dir, filename)
tpl, err := template.New("").Funcs(templateFunctions).ParseFiles(pattern)
if err != nil {
return nil, err
}
return tpl.Lookup(filename), err
}
// templateStringMappers are placed into the data to make it easy to use the
// stringMap function.
var templateStringMappers = map[string]func(string) string{
// String ops
"quoteWrap": func(a string) string { return fmt.Sprintf(`"%s"`, a) },
// Casing
"titleCase": strmangle.TitleCase,
"camelCase": strmangle.CamelCase,
}
// templateFunctions is a map of all the functions that get passed into the
// templates. If you wish to pass a new function into your own template,
// add a function pointer here.
var templateFunctions = template.FuncMap{
// String ops
"quoteWrap": func(a string) string { return fmt.Sprintf(`"%s"`, a) },
"id": strmangle.Identifier,
// Pluralization
"singular": strmangle.Singular,
"plural": strmangle.Plural,
// Casing
"titleCase": strmangle.TitleCase,
"camelCase": strmangle.CamelCase,
// String Slice ops
"join": func(sep string, slice []string) string { return strings.Join(slice, sep) },
"joinSlices": strmangle.JoinSlices,
"stringMap": strmangle.StringMap,
"prefixStringSlice": strmangle.PrefixStringSlice,
// String Map ops
"makeStringMap": strmangle.MakeStringMap,
// Set operations
"setInclude": strmangle.SetInclude,
// Database related mangling
"whereClause": strmangle.WhereClause,
// Text helpers
"textsFromForeignKey": textsFromForeignKey,
"textsFromOneToOneRelationship": textsFromOneToOneRelationship,
"textsFromRelationship": textsFromRelationship,
// dbdrivers ops
"filterColumnsByDefault": bdb.FilterColumnsByDefault,
"sqlColDefinitions": bdb.SQLColDefinitions,
"columnNames": bdb.ColumnNames,
"columnDBTypes": bdb.ColumnDBTypes,
"getTable": bdb.GetTable,
}