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columnDecor.go
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columnDecor.go
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// Copyright 2020 Author: Ruslan Bikchentaev. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package forms
import (
"context"
"database/sql/driver"
"go/types"
"regexp"
"strings"
"github.com/ruslanBik4/dbEngine/dbEngine"
"github.com/valyala/fastjson"
"github.com/ruslanBik4/httpgo/typesExt"
"github.com/ruslanBik4/logs"
)
type AttachmentList struct {
Id int32 `json:"id"`
Url string `json:"url"`
}
type ColumnDecor struct {
dbEngine.Column
IsHidden, IsDisabled, IsReadOnly, IsSlice, IsNewPrimary,
SelectWithNew bool
InputType string
SpecialInputName string
DefaultInputValue string `json:"defaultInputValue,omitempty"`
Attachments []AttachmentList
SelectOptions map[string]string
PatternList dbEngine.Table
PatternName string
PlaceHolder string
LinkNew string
Label string
multiple bool
pattern string
patternDesc string
Value interface{}
Suggestions string
SuggestionsParams map[string]interface{}
}
var regPattern = regexp.MustCompile(`{(\s*['"][^"']+['"]:\s*(("[^"]+")|('[^']+')|([^"'{},]+)|({[^}]+})),?)+}`)
func NewColumnDecor(column dbEngine.Column, patternList dbEngine.Table) *ColumnDecor {
comment := column.Comment()
colDec := &ColumnDecor{
Column: column,
IsReadOnly: column.AutoIncrement() || strings.Contains(comment, "read_only"),
PatternList: patternList,
SuggestionsParams: make(map[string]interface{}),
}
if m := regPattern.FindAllSubmatch([]byte(comment), -1); len(m) > 0 {
parse, err := fastjson.ParseBytes(m[0][0])
if err != nil {
logs.ErrorLog(err, string(m[0][0]))
} else {
p := parse.GetStringBytes("pattern")
colDec.getPattern(string(p))
p = parse.GetStringBytes("suggestions")
if len(p) > 0 {
colDec.Suggestions = string(p)
}
colDec.multiple = parse.GetBool("multiple")
params := parse.GetObject("suggestions_params")
params.Visit(func(key []byte, v *fastjson.Value) {
b, err := v.StringBytes()
if err != nil {
logs.ErrorLog(err, key)
return
}
colDec.SuggestionsParams[string(key)] = string(b)
})
}
colDec.Label = strings.Split(comment, "{")[0]
} else if comment > "" {
colDec.Label = comment
} else {
colDec.Label = column.Name()
}
colDec.IsHidden = column.Primary()
colDec.InputType = colDec.inputType()
return colDec
}
func (col *ColumnDecor) Copy() *ColumnDecor {
return &ColumnDecor{
Column: col.Column,
IsReadOnly: col.IsReadOnly,
IsSlice: col.IsSlice,
InputType: col.InputType,
SelectOptions: col.SelectOptions,
PatternList: col.PatternList,
PatternName: col.PatternName,
PlaceHolder: col.PlaceHolder,
Suggestions: col.Suggestions,
Label: col.Label,
IsHidden: col.IsHidden,
LinkNew: col.LinkNew,
pattern: col.pattern,
patternDesc: col.patternDesc,
// todo must decide later
// Value: col.Value,
}
}
func (col *ColumnDecor) Placeholder() string {
if col.PlaceHolder > "" {
return col.PlaceHolder
}
if col.patternDesc > "" {
return col.patternDesc
}
if col.pattern > "" {
return col.pattern
}
return col.Label
}
func (col *ColumnDecor) Pattern() string {
if col.pattern > "" {
return col.pattern
}
if name := col.PatternName; name > "" {
col.getPattern(name)
} else if col.BasicTypeInfo() == types.IsInteger && len(col.Attachments) == 0 {
col.pattern = `^-?\d+$`
} else if col.BasicTypeInfo() == types.IsFloat {
col.pattern = `^-?\d+(\.\d{1,2})?$`
} else if col.BasicTypeInfo() == types.IsComplex {
col.pattern = `^[+±-]?\d+(\.\d{1,2})?$`
}
return col.pattern
}
func (col *ColumnDecor) GetFields(columns []dbEngine.Column) []interface{} {
if len(columns) == 0 {
return []interface{}{&col.Value}
}
v := make([]interface{}, len(columns))
for i, c := range columns {
switch c.Name() {
case "pattern":
v[i] = &col.pattern
case "description":
v[i] = &col.patternDesc
}
}
return v
}
var regName = regexp.MustCompile(`\w+`)
func (col *ColumnDecor) getPattern(name string) {
if col.PatternList != nil && regName.MatchString(name) {
err := col.PatternList.SelectAndScanEach(context.TODO(),
nil,
col,
dbEngine.ColumnsForSelect("pattern", "description"),
dbEngine.WhereForSelect("name"),
dbEngine.ArgsForSelect(name),
)
if err != nil {
logs.ErrorLog(err, "")
}
}
if col.pattern == "" {
col.pattern = name
}
}
const (
email = "email"
tel = "phone"
)
func (col *ColumnDecor) Type() string {
if strings.HasPrefix(col.Name(), email) {
return email
} else if strings.HasPrefix(col.Name(), tel) {
return "tel"
}
return col.Column.Type()
}
func (col *ColumnDecor) GetValues() (values []interface{}) {
switch val := col.Value.(type) {
case []interface{}:
values = val
col.IsSlice = true
case []string:
values = make([]interface{}, len(val))
for i, val := range val {
values[i] = val
}
col.IsSlice = true
case []int32:
values = make([]interface{}, len(val))
for i, val := range val {
values[i] = val
}
col.IsSlice = true
case []int64:
values = make([]interface{}, len(val))
for i, val := range val {
values[i] = val
}
col.IsSlice = true
case []float32:
values = make([]interface{}, len(val))
for i, val := range val {
values[i] = val
}
col.IsSlice = true
case []float64:
values = make([]interface{}, len(val))
for i, val := range val {
values[i] = val
}
col.IsSlice = true
case nil:
values = append(values, nil)
case driver.Valuer:
v, err := val.Value()
if err != nil {
logs.ErrorLog(err, "val.Value %v", val)
values = append(values, nil)
} else {
values = append(values, v)
}
default:
values = append(values, val)
}
if len(values) == 0 {
values = append(values, nil)
}
return
}
func (col *ColumnDecor) InputName(i int) string {
if col.SpecialInputName > "" {
return col.SpecialInputName
}
if col.IsSlice {
return col.Name() + "[]"
}
if col.IsNewPrimary {
return "new." + col.Name()
}
return col.Name()
}
func (col *ColumnDecor) inputType() string {
if col.Suggestions > "" {
return "select"
}
if col.IsHidden {
return "hidden"
}
switch col.Type() {
case "daterange":
return "date-range"
case "date", "_date":
return "date"
case "datetime", "datetimetz", "timestamp", "timestamptz", "time", "_timestamp", "_timestamptz", "_time":
return "datetime"
case email, tel, "tel", "password", "url":
return col.Type()
case "text", "_text", "json", "jsonb":
return "textarea"
case "bytea", "_bytea":
return "file"
default:
if typesExt.IsNumeric(col.BasicTypeInfo()) {
return "number"
}
if col.BasicType() == types.Bool {
return "checkbox"
}
return "text"
}
}
type Button struct {
Title string
Position bool
ButtonType string
}
type BlockColumns struct {
Buttons []Button
Columns []*ColumnDecor
Id int
Multiple bool
Title, Description string
}