Backend Forms:
- Domain/Forms: ContractTemplate (FormCode, Name, ContractType, FileName, StoragePath, Format, FieldSpec JSON, IsActive) + ContractClause
- EF config voi unique FormCode + query filter IsDeleted
- DbSets + IApplicationDbContext update
- Migration AddForms (bang 14 total)
- Packages: DocumentFormat.OpenXml 3.x + ClosedXML 0.105+
- Application/Forms:
- IFormRenderer interface + RenderResult record
- FormFeatures.cs: List/Get/Render CQRS
- IWebHostEnvironmentLocator (abstract IWebHostEnvironment)
- Infrastructure/Forms:
- DocxRenderer: OpenXml-based placeholder {{field}} replace, handle split runs (gom text tat ca <w:t> trong paragraph, replace, gan lai text dau + clear rest)
- XlsxRenderer: ClosedXML cell value replace
- FormRenderer router theo format docx/xlsx
- Api:
- FormsController: GET /templates (filter type, onlyActive), GET /templates/{id}, POST /templates/{id}/render (return file)
- WebHostEnvironmentLocator impl
- DbInitializer SeedContractTemplatesAsync: seed 8 template metadata, IsActive=true chi khi file ton tai
Templates vat ly:
- Copy 5 .docx/.xlsx tu FORM/ sang wwwroot/templates/
- 3 .doc (FO-002.02/03/06) chua convert: IsActive=false (Word COM bi stuck luc test, can retry voi DisplayAlerts=0 hoac LibreOffice)
- scripts/convert-doc-to-docx.ps1 (Word COM automation)
Frontend fe-admin:
- types/forms.ts: ContractTemplate + ContractTypeLabel
- pages/forms/FormsPage.tsx: list templates + Render dialog (paste JSON data → download .docx/.xlsx)
- Route /forms them vao App.tsx
Bug fix:
- SpaceProcessingModeValues namespace: wrap EnumValue<> full path
- SaveAs2($path, 16) thay vi SaveAs([ref], [ref]) — PowerShell type issue
- Word COM stuck: kill process, skip .doc cho MVP
Docs (theo yeu cau user):
- docs/gotchas.md MOI: 17 pitfalls nhom theo tech stack / EF Core / OpenXml / JSON / dev workflow
- .claude/skills/form-engine/SKILL.md: placeholder → full spec (algorithm + code pointers + API + limitations)
- .claude/skills/permission-matrix/SKILL.md: placeholder → full spec (BE policy + FE guard + seed + pitfalls)
- docs/HANDOFF.md MOI: brief 5 phut cho session sau (run quickstart + where we are + next steps + file tree + gotchas ref)
- docs/STATUS.md: update cumulative stats + next up Phase 3
- docs/changelog/migration-todos.md: tick Phase 2 iteration 1 items + add iteration 2 list
- docs/changelog/sessions/2026-04-21-1200-phase2-form-engine.md: session log
- CLAUDE.md root: them reference den gotchas + HANDOFF
E2E verified:
- GET /api/forms/templates (onlyActive=false) → 8 templates
- POST /api/forms/templates/{FO-002.05}/render voi data dict → HTTP 200 + file .docx 482KB (Microsoft Word 2007+ OK)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
5.4 KiB
5.4 KiB
name, description, when-to-use
| name | description | when-to-use | ||||||
|---|---|---|---|---|---|---|---|---|
| form-engine | Template engine render 8 form hợp đồng ra .docx/.xlsx giống 100% mẫu gốc. Placeholder syntax {{field}}. Dùng khi export HĐ, upload template mới, debug render lỗi format, gen mã HĐ theo RG-001. |
|
Form Engine Skill
Status: Phase 2 implemented (MVP — placeholder replace cơ bản). Missing: loop
{{#loop}}...{{/loop}}cho table lặp, field spec JSON, PDF convert, form builder FE.
Tech stack
| Layer | Tech | Purpose |
|---|---|---|
.docx render |
DocumentFormat.OpenXml 3.x | Free, maintained by MS |
.xlsx render |
ClosedXML 0.105+ | Free LGPL, dễ dùng, support formula/style |
| PDF convert | LibreOffice headless (chưa implement) | soffice --headless --convert-to pdf — Phase 4 |
.doc → .docx |
Word COM (PowerShell) | Chạy offline 1 lần trên dev machine |
Placeholder syntax
Template (.docx hoặc .xlsx) chứa {{fieldName}} — regex \{\{([a-zA-Z0-9_\.]+)\}\}:
Hợp đồng số: {{maHopDong}}
Bên A: {{benA_tenCongTy}}
Giá trị: {{giaTri}}
Data dictionary:
{
"maHopDong": "FLOCK 01/HĐGK/SOL&PVL/03",
"benA_tenCongTy": "Công ty TNHH Xây dựng Solutions",
"giaTri": "150,000,000 VND"
}
Null value → replace bằng rỗng. Key không có trong data → giữ nguyên placeholder.
Code pointers
src/Backend/SolutionErp.Application/Forms/Services/IFormRenderer.cs— interfacesrc/Backend/SolutionErp.Infrastructure/Forms/DocxRenderer.cs— OpenXml-basedsrc/Backend/SolutionErp.Infrastructure/Forms/XlsxRenderer.cs— ClosedXML-basedsrc/Backend/SolutionErp.Infrastructure/Forms/FormRenderer.cs— router theo formatsrc/Backend/SolutionErp.Application/Forms/FormFeatures.cs— CQRS list/get/rendersrc/Backend/SolutionErp.Api/Controllers/FormsController.cs— REST endpointssrc/Backend/SolutionErp.Infrastructure/Persistence/DbInitializer.cs—SeedContractTemplatesAsyncfe-admin/src/pages/forms/FormsPage.tsx— UI list + render testsrc/Backend/SolutionErp.Api/wwwroot/templates/— file templates vật lý
API endpoints
| Method | Path | Purpose |
|---|---|---|
| GET | /api/forms/templates?type=&onlyActive= |
List templates |
| GET | /api/forms/templates/{id} |
Get single |
| POST | /api/forms/templates/{id}/render |
Render với data dictionary → return file |
Key algorithm — Placeholder split fix
Word thường split placeholder thành nhiều <w:t> runs (vì style, typo check…). DocxRenderer xử lý bằng:
foreach (var para in root.Descendants<Paragraph>()) {
var textElements = para.Descendants<Text>().ToList();
var combined = string.Concat(textElements.Select(t => t.Text));
if (!combined.Contains("{{")) continue;
var replaced = Regex.Replace(combined, @"\{\{([a-zA-Z0-9_\.]+)\}\}", match =>
data.TryGetValue(match.Groups[1].Value, out var v) ? (v ?? "") : match.Value);
if (replaced != combined) {
textElements[0].Text = replaced; // gán vào text đầu
textElements[0].Space = ...Preserve; // giữ space
for (var i = 1; i < textElements.Count; i++)
textElements[i].Text = ""; // clear phần còn lại
}
}
Workflow thêm template mới
- Upload file
.docx/.xlsx→wwwroot/templates/{formCode}.{ext} - Insert row vào
ContractTemplates:INSERT INTO ContractTemplates (FormCode, Name, ContractType, FileName, StoragePath, Format, IsActive, CreatedAt) VALUES ('SOL-CCM-FO-002.XX', 'Tên', 1, 'file.docx', 'templates/file.docx', 'docx', 1, GETUTCDATE()); - Template tự động xuất hiện ở
/formsFE
Known limitations
| # | Limitation | Phase fix |
|---|---|---|
| 1 | Không support {{#loop}}...{{/loop}} cho table lặp |
Phase 2 iteration 2 |
| 2 | Không có field spec JSON — form builder FE phải điền JSON thủ công | Phase 2 iteration 2 |
| 3 | 3 file .doc (FO-002.02/03/06) chưa convert → IsActive=false |
Convert offline qua Word COM |
| 4 | Không có PDF convert → preview chỉ download .docx | Phase 4 |
| 5 | Không handle .docm (macro) — chỉ accept .docx / .xlsx |
By design |
| 6 | Không convert format trong template (vd number → 150,000,000 VND) — BE phải format trước khi pass data |
Phase 3 khi gen mã HĐ |
Common pitfalls (xem gotchas.md)
- Placeholder bị split runs → đã handle trong DocxRenderer
- SpaceProcessingModeValues namespace — xem gotcha #9
- Word COM stuck — gotcha #12
- SaveAs type conversion — gotcha #11
- Template file không tồn tại → throw
NotFoundExceptionở RenderCommandHandler
Gen mã HĐ (RG-001) — chưa implement (Phase 3)
Xem docs/forms-spec.md §RG-001. Tóm tắt format:
| Loại HĐ | Format |
|---|---|
| HĐ Thầu phụ | {Project}/HĐTP/SOL&{Partner}/{Seq} |
| HĐ Giao khoán | {Project}/HĐGK/SOL&{Partner}/{Seq} |
| HĐ NCC | {Project}/NCC/SOL&{Partner}/{Seq} |
| HĐ Nguyên tắc | {Year}/NCC/SOL&{Partner}/{Seq} |
Planned implementation: IContractCodeGenerator.GenerateAsync() với transaction SERIALIZABLE + ContractCodeSequences table để tránh race.