Source file gen_view.ml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
let template =
{|
open Tyxml
type t = {{module}}.t
let skip_index_fetch = false
(* General *)
let%html alert_message alert =
{|<span class="alert">\|\}
[ Html.txt (Option.value alert ~default:"") ]
{|</span>\|\}
;;
let%html notice_message notice =
{|<span class="notice">\|\}
[ Html.txt (Option.value notice ~default:"") ]
{|</span>\|\}
;;
let%html page alert notice body =
{|
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>{{module}}</title>
<link rel="stylesheet" href="https://fonts.xz.style/serve/inter.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@exampledev/new.css@1.1.2/new.min.css">
{{style}}
<style>
.alert {
color: red;
}
.notice {
color: green;
}
</style>
</head>
<body>\|\}
[ alert_message alert ]
[ notice_message notice ]
body
{|
{{scripts}}
</body>
</html>
\|\}
;;
let%html delete_button ({{name}} : {{module}}.t) (query : Sihl.Web.Rest.query) csrf =
{|
<form action="\|\}
(Format.sprintf
"/{{name}}s/%s%s"
{{name}}.{{module}}.id
(Sihl.Web.Rest.to_query_string query))
{|" method="Post">
<input type="hidden" name="_csrf" value="\|\}
csrf
{|">
<input type="hidden" name="_method" value="delete">
<input type="submit" value="Delete">
</form>
\|\}
;;
let%html create_link = {|<div><a href="/{{name}}s/new">Create</a></div>\|\}
let%html edit_link name =
{|<a href="\|\} (Format.sprintf "/{{name}}s/%s/edit" name) {|">Edit</a>\|\}
;;
let form_comp form ({{name}} : {{module}}.t option) =
{{form_values}}
{{default_values}}
[%html {| {{form}} \|\}]
;;
(* Index *)
let%html table_header = {|<tr style="white-space: nowrap;">
<th>Id</th>
{{table_header}}
<th>Created at</th>
<th>Updated at</th>
<th>Actions</th>
</tr>\|\}
;;
let%html table_row csrf query ({{name}} : {{module}}.t) =
{|<tr><td><a href="\|\}
(Format.sprintf "/{{name}}s/%s" {{name}}.{{module}}.id)
{|">\|\}
[ Html.txt {{name}}.{{module}}.id ]
{|</a></td>\|\}
{{table_rows}}
{|<td>\|\}
[ Html.txt (Ptime.to_rfc3339 {{name}}.{{module}}.created_at) ]
{|</td><td>\|\}
[ Html.txt (Ptime.to_rfc3339 {{name}}.{{module}}.updated_at) ]
{|</td><td>\|\}
[ delete_button {{name}} query csrf ]
[ edit_link {{name}}.{{module}}.id ]
{|</td></tr>\|\}
;;
let%html table table_header items =
{|<div><h3>{{module}}s</h3><table><tbody>\|\}
(List.cons table_header items)
{|</tbody></table></div>\|\}
;;
let%html search_box (query : Sihl.Web.Rest.query) =
{|
<form action="/{{name}}s" method="Get">
<input type="text" name="filter" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_filter query))
{|">
<input type="hidden" name="sort" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_sort query))
{|">
<input type="hidden" name="limit" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_limit query))
{|">
<input type="hidden" name="offset" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_offset query))
{|">
<input type="submit" value="Search">
</form>
\|\}
;;
let navigate_page label (query : Sihl.Web.Rest.query option) =
match query with
| Some query ->
[ [%html
{|
<form style="display: inline;" action="/{{name}}s" method="Get">
<input type="hidden" name="filter" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_filter query))
{|">
<input type="hidden" name="sort" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_sort query))
{|">
<input type="hidden" name="limit" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_limit query))
{|">
<input type="hidden" name="offset" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_offset query))
{|">
<input type="submit" value="\|\}
label
{|">
</form>
\|\}]
]
| None ->
[ [%html
{|
<form style="display: inline;" action="/{{name}}s" method="Get">
<input type="submit" value="\|\}
label
{|" disabled>
</form>
\|\}]
]
;;
let%html pagination (query : Sihl.Web.Rest.query) (total : int) =
"<div>"
(navigate_page "First" (Sihl.Web.Rest.first_page query))
(navigate_page "Previous" (Sihl.Web.Rest.previous_page query))
(navigate_page "Next" (Sihl.Web.Rest.next_page query total))
(navigate_page "Last" (Sihl.Web.Rest.last_page query total))
"</div>"
;;
let limit_option (limit : int option) (to_show : int) =
if Option.equal Int.equal limit (Some to_show)
then
[ [%html
"<option selected value="
(string_of_int to_show)
">"
(Html.txt (string_of_int to_show))
"</option>"]
]
else
[ [%html
"<option value="
(string_of_int to_show)
">"
(Html.txt (string_of_int to_show))
"</option>"]
]
;;
let%html total_items (total : int) =
{|<span>\|\} [ Html.txt (Format.sprintf "Total: %d" total) ] {|</span>\|\}
;;
let%html page_size (query : Sihl.Web.Rest.query) =
{|
<form action="/{{name}}s" method="Get">
<input type="hidden" name="filter" value="\|\}
(query |> Sihl.Web.Rest.query_filter |> Option.value ~default:"")
{|">
<input type="hidden" name="sort" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_sort query))
{|">
<label>Results per page:</label>
<select name="limit"> \|\}
(limit_option query.Sihl.Web.Rest.limit 25)
(limit_option query.Sihl.Web.Rest.limit 50)
(limit_option query.Sihl.Web.Rest.limit 100)
(limit_option query.Sihl.Web.Rest.limit 500)
{|
</select>
<input type="hidden" name="offset" value="\|\}
(Option.value ~default:"" (Sihl.Web.Rest.query_offset query))
{|">
<input type="submit" value="Set">
</form>
\|\}
;;
(* Views *)
let index req csrf (result : {{module}}.t list * int) query =
let {{name}}s, total = result in
let notice = Sihl.Web.Flash.find_notice req in
let alert = Sihl.Web.Flash.find_alert req in
let items = List.map ~f:(table_row csrf query) {{name}}s in
let table = table table_header items in
Lwt.return
@@ page
alert
notice
[ search_box query
; create_link
; table
; total_items total
; page_size query
; pagination query total
]
;;
let new' req csrf (form : Sihl.Web.Rest.form) =
let notice = Sihl.Web.Flash.find_notice req in
let alert = Sihl.Web.Flash.find_alert req in
let form =
[%html
{|
<form action="/{{name}}s" method="Post">
<input type="hidden" name="_csrf" value="\|\}
csrf
{|">
\|\}
(form_comp form None)
{|
<div>
<input type="submit" value="Create">
</div>
</form>
\|\}]
in
Lwt.return @@ page alert notice [ form ]
;;
let show req ({{name}} : {{module}}.t) =
let notice = Sihl.Web.Flash.find_notice req in
let alert = Sihl.Web.Flash.find_alert req in
let body = [%html {{show}}] in
Lwt.return @@ page alert notice [ body ]
;;
let edit req csrf (form : Sihl.Web.Rest.form) ({{name}} : {{module}}.t) =
let notice = Sihl.Web.Flash.find_notice req in
let alert = Sihl.Web.Flash.find_alert req in
let form =
[%html
{|
<form action="\|\}
(Format.sprintf "/{{name}}s/%s" {{name}}.{{module}}.id)
{|" method="Post">
<input type="hidden" name="_csrf" value="\|\}
csrf
{|">
<input type="hidden" name="_method" value="put">\|\}
(form_comp form (Some {{name}}))
{|<input type="submit" value="Update">
</form>
\|\}]
in
Lwt.return @@ page alert notice [ form ]
;;
|}
;;
let dune_template =
{|(library
(name view_{{name}})
(libraries tyxml sihl service {{name}})
(preprocess
(pps tyxml-ppx)))
|}
;;
let unescape_template (t : string) : string =
t |> CCString.replace ~sub:{|\|\}|} ~by:"|}"
;;
let (schema : Gen_core.schema) : string =
schema
|> List.map fst
|> List.map String.capitalize_ascii
|> List.map (Format.sprintf "<th>%s</th>")
|> String.concat "\n"
;;
let stringify name module_name (field_name, type_) =
let open Gen_core in
match type_ with
| Float ->
Format.sprintf
"[ Html.txt (string_of_float %s.%s.%s) ]"
name
module_name
field_name
| Int ->
Format.sprintf
"[ Html.txt (string_of_int %s.%s.%s) ]"
name
module_name
field_name
| Bool ->
Format.sprintf
"[ Html.txt (string_of_bool %s.%s.%s) ]"
name
module_name
field_name
| String -> Format.sprintf "[ Html.txt %s.%s.%s ]" name module_name field_name
| Datetime ->
Format.sprintf
"[ Html.txt (Ptime.to_rfc3339 %s.%s.%s) ]"
name
module_name
field_name
;;
let table_rows name module_name (schema : Gen_core.schema) =
schema
|> List.map (fun field ->
Format.sprintf "\"<td>\"%s\"</td>\"" (stringify name module_name field))
|> String.concat "\n"
;;
let form_values schema =
schema
|> List.map fst
|> List.map (fun name ->
Format.sprintf
"let old_%s, %s_error = Sihl.Web.Rest.find_form \"%s\" form in"
name
name
name)
|> String.concat "\n"
;;
let default_value type_ =
let open Gen_core in
match type_ with
| Float -> "0.0"
| Int -> "0"
| Bool -> "false"
| String -> "\"\""
| Datetime -> "(Ptime_clock.now ())"
;;
let checkbox field_name field_type =
let open Gen_core in
match field_type with
| Bool ->
Format.sprintf
{|
let %s =
if current_%s || Option.equal String.equal old_%s (Some "true")
then [|}
field_name
field_name
field_name
^ "%h"
^ Format.sprintf
{|tml {|<input type="checkbox" name="%s" value="true" checked>\|\}]
else [|}
field_name
^ "%h"
^ Format.sprintf
{|tml {|<input type="checkbox" name="%s" value="true">\|\}]
in
|}
field_name
|> unescape_template
| Float | Int | String | Datetime -> ""
;;
let default_values name module_name schema =
schema
|> List.map (fun (field_name, field_type) ->
Format.sprintf
{|
let current_%s =
%s
|> Option.map (fun (%s : %s.t) -> %s.%s.%s)
|> Option.value ~default:%s
in
%s
|}
field_name
name
name
module_name
name
module_name
field_name
(default_value field_type)
(checkbox field_name field_type))
|> String.concat "\n"
;;
let form_input (field_name, field_type) =
let open Gen_core in
match field_type with
| Float ->
Format.sprintf
{|<input name="%s" value="\|\}
(Option.value ~default:current_%s old_%s)
{|">|}
field_name
field_name
field_name
| Int ->
Format.sprintf
{|<input name="%s" value="\|\}
(Option.value ~default:(string_of_int current_%s) old_%s)
{|">|}
field_name
field_name
field_name
| Bool ->
Format.sprintf
{|\|\} [ %s ] {|
<input type="hidden" name="%s" value="false">
|}
field_name
field_name
|> unescape_template
| String ->
Format.sprintf
{|<input name="%s" value="\|\}
(Option.value ~default:current_%s old_%s)
{|">|}
field_name
field_name
field_name
| Datetime ->
Format.sprintf
{|<input class="datetime" type="datetime-local" name="%s" value="\|\}
(* Not that datetime-local is not yet supported by many browsers. You might
want to use some datepicker library *)
(Option.value ~default:(Ptime.to_rfc3339 current_%s) old_%s)
{|">|}
field_name
field_name
field_name
;;
let alert (field_name, _) =
Format.sprintf
{|<p class="alert">\|\}
[ Html.txt (Option.value ~default:"" %s_error) ]
{|</p>|}
field_name
;;
let form_elements schema =
schema
|> List.map (fun field ->
Format.sprintf
{|
<div>
<label>%s</label>
%s
</div>
%s
|}
(String.capitalize_ascii (fst field))
(form_input field)
(alert field))
|> String.concat "\n"
|> unescape_template
;;
let show name module_name (schema : Gen_core.schema) =
schema
|> List.map (fun field ->
Format.sprintf
{|"<div><span>%s: </span><span>" %s "</span></div>"|}
(fst field)
(stringify name module_name field))
|> String.concat "\n"
|> fun fields ->
Format.sprintf
"\"<div>\"%s [ edit_link %s.%s.id ]\"</div>\""
fields
name
module_name
;;
let has_datetime schema =
let open Gen_core in
schema
|> List.map snd
|> List.find_opt (function
| Datetime -> true
| Int | Float | String | Bool -> false)
|> Option.map (fun _ -> true)
|> Option.value ~default:false
;;
let scripts (schema : Gen_core.schema) =
if has_datetime schema
then
{|<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/flatpickr"></script>
<script>\|\}
(Tyxml.Html.Unsafe.data
{|(function() { $( ".datetime" ).flatpickr({enableTime:true, dateFormat:"Z"}); })();\|\})
{|</script>|}
|> unescape_template
else ""
;;
let style (schema : Gen_core.schema) =
if has_datetime schema
then
{|<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/flatpickr/dist/flatpickr.min.css">|}
else ""
;;
let create_params name (schema : Gen_core.schema) =
let module_name = CCString.capitalize_ascii name in
[ "module", module_name
; "name", name
; "table_header", table_header schema
; "table_rows", table_rows name module_name schema
; "form_values", form_values schema
; "default_values", default_values name module_name schema
; "form", form_elements schema
; "show", show name module_name schema
; "scripts", scripts schema
; "style", style schema
]
;;
let generate (name : string) (schema : Gen_core.schema) =
if String.contains name ':'
then failwith "Invalid service name provided, it can not contain ':'"
else (
let dune_file =
Gen_core.
{ name = "dune"; template = dune_template; params = [ "name", name ] }
in
let file =
Gen_core.
{ name = Format.sprintf "view_%s.ml" name
; template = unescape_template template
; params = create_params name schema
}
in
Gen_core.write_in_view name [ dune_file; file ])
;;