- Migrate from SQLite to PostgreSQL with normalized schema - Add 11 lookup tables (fuel_type, body_type, drivetrain, transmission, materials, position_part, manufacture_type, quality_tier, countries, reference_type, shapes) - Rewrite dashboard/server.py (76 routes) using SQLAlchemy text() queries - Rewrite console/db.py (27 methods) using SQLAlchemy ORM - Add models.py with 27 SQLAlchemy model definitions - Add config.py for centralized DB_URL configuration - Add migrate_to_postgres.py migration script - Add docs/METABASE_GUIDE.md with complete data entry guide - Rebrand from "AUTOPARTS DB" to "NEXUS AUTOPARTS" - Fill vehicle data gaps via NHTSA API + heuristics: engines (cylinders, power, torque), brands (country, founded_year), models (body_type, production years), MYE (drivetrain, transmission, trim) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
278 lines
9.2 KiB
Python
278 lines
9.2 KiB
Python
"""
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Admin CRUD screen for Manufacturers in the NEXUS AUTOPARTS console application.
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Provides a list view with create (F3), edit (ENTER), and delete (F8/Del)
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operations for the manufacturers table.
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"""
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from console.core.screens import Screen
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from console.core.keybindings import Key
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from console.config import APP_NAME, VERSION
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from console.utils.formatting import truncate
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# Form field definitions for create/edit
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_FIELDS = [
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{'label': 'Nombre', 'key': 'name', 'width': 30},
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{'label': 'Tipo', 'key': 'type', 'width': 15, 'hint': 'oem/aftermarket/remanufactured'},
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{'label': 'Calidad', 'key': 'quality_tier', 'width': 10, 'hint': 'premium/standard/economy'},
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{'label': 'Pais', 'key': 'country', 'width': 20},
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{'label': 'Website', 'key': 'website', 'width': 40},
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]
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# Footer labels per mode
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_FOOTER_LIST = [
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("F3", "Nuevo"),
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("ENTER", "Editar"),
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("F8", "Eliminar"),
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("ESC", "Atras"),
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]
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_FOOTER_FORM = [
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("TAB/Down", "Siguiente"),
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("Up", "Anterior"),
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("F9", "Guardar"),
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("ESC", "Cancelar"),
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]
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class AdminFabricantesScreen(Screen):
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"""Admin CRUD screen for the manufacturers table."""
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def __init__(self):
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super().__init__(name="admin_fabricantes", title="Administracion de Fabricantes")
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self._mode = 'list' # 'list' or 'form'
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self._selected = 0
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self._manufacturers = []
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self._editing_id = None # None = creating, int = editing
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self._focused_field = 0
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self._form_data = {}
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self._dirty = False
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# ------------------------------------------------------------------
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# Data loading
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# ------------------------------------------------------------------
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def _load_manufacturers(self, db):
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"""Load all manufacturers."""
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self._manufacturers = db.get_manufacturers()
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def _init_form(self, mfr=None):
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"""Initialise form_data from an existing manufacturer or blank."""
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self._form_data = {}
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if mfr:
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for f in _FIELDS:
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val = mfr.get(f['key'], '')
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self._form_data[f['key']] = str(val) if val is not None else ''
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else:
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for f in _FIELDS:
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self._form_data[f['key']] = ''
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self._focused_field = 0
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self._dirty = False
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# ------------------------------------------------------------------
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# Render
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# ------------------------------------------------------------------
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def render(self, context, db, renderer):
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renderer.draw_header(
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f" {APP_NAME} v{VERSION}",
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" ADMINISTRACION DE FABRICANTES ",
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)
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if self._mode == 'list':
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self._render_list(db, renderer)
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else:
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self._render_form(renderer)
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def _render_list(self, db, renderer):
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"""Render the manufacturers list."""
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self._load_manufacturers(db)
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headers = ["NOMBRE", "TIPO", "CALIDAD", "PAIS", "WEBSITE"]
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widths = [20, 14, 10, 14, 20]
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rows = []
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for m in self._manufacturers:
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rows.append((
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truncate(m.get("name", ""), 20),
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truncate(m.get("type", "") or "", 14),
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truncate(m.get("quality_tier", "") or "", 10),
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truncate(m.get("country", "") or "", 14),
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truncate(m.get("website", "") or "", 20),
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))
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renderer.draw_table(
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headers,
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rows,
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widths,
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page_info={
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"page": 1,
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"total_pages": 1,
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"total_rows": len(rows),
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},
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selected_row=self._selected,
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)
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renderer.draw_footer(_FOOTER_LIST)
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def _render_form(self, renderer):
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"""Render the create/edit form."""
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title = "EDITAR FABRICANTE" if self._editing_id else "NUEVO FABRICANTE"
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fields = []
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for f in _FIELDS:
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fields.append({
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'label': f['label'],
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'value': self._form_data.get(f['key'], ''),
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'width': f['width'],
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'hint': f.get('hint', ''),
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})
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renderer.draw_form(fields, focused_index=self._focused_field, title=title)
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renderer.draw_footer(_FOOTER_FORM)
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# ------------------------------------------------------------------
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# Key handling
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# ------------------------------------------------------------------
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def on_key(self, key, context, db, renderer, nav):
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if self._mode == 'list':
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return self._handle_list_key(key, db, renderer)
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else:
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return self._handle_form_key(key, db, renderer)
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def _handle_list_key(self, key, db, renderer):
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"""Handle keys in list mode."""
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# ESC: go back
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if key == Key.ESCAPE:
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return "back"
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# Arrow navigation
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if key == Key.UP:
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if self._selected > 0:
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self._selected -= 1
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return None
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if key == Key.DOWN:
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if self._manufacturers and self._selected < len(self._manufacturers) - 1:
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self._selected += 1
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return None
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# F3: create new manufacturer
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if key == Key.F3:
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self._mode = 'form'
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self._editing_id = None
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self._init_form()
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return None
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# ENTER: edit selected manufacturer
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if key == Key.ENTER:
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if self._manufacturers and 0 <= self._selected < len(self._manufacturers):
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mfr = self._manufacturers[self._selected]
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self._editing_id = mfr["id"]
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self._mode = 'form'
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self._init_form(mfr)
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return None
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# Number keys 1-9: edit manufacturer at that row index
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if 49 <= key <= 57:
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idx = key - 49
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if 0 <= idx < len(self._manufacturers):
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mfr = self._manufacturers[idx]
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self._editing_id = mfr["id"]
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self._mode = 'form'
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self._init_form(mfr)
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return None
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# F8 or DEL: delete selected manufacturer
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if key in (Key.F8, 330): # 330 = KEY_DC (Delete)
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if self._manufacturers and 0 <= self._selected < len(self._manufacturers):
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mfr = self._manufacturers[self._selected]
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name = mfr.get("name", "")
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confirmed = renderer.show_message(
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f"Eliminar fabricante?\n{name}",
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"confirm",
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)
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if confirmed:
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try:
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db.delete_manufacturer(mfr["id"])
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except Exception as exc:
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renderer.show_message(f"Error:\n{exc}", "error")
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return None
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if self._selected >= len(self._manufacturers) - 1:
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self._selected = max(0, self._selected - 1)
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return None
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return None
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def _handle_form_key(self, key, db, renderer):
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"""Handle keys in form mode."""
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# ESC: cancel form (with dirty check)
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if key == Key.ESCAPE:
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if self._dirty:
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confirmed = renderer.show_message(
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"Descartar cambios?", "confirm"
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)
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if not confirmed:
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return None
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self._mode = 'list'
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return None
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# TAB / Down: next field
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if key in (Key.TAB, Key.DOWN):
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if self._focused_field < len(_FIELDS) - 1:
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self._focused_field += 1
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return None
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# Up: previous field
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if key == Key.UP:
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if self._focused_field > 0:
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self._focused_field -= 1
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return None
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# F9: save
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if key == Key.F9:
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return self._save(db, renderer)
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# Backspace: delete last char from current field value
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if key in (Key.BACKSPACE, 8):
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field_key = _FIELDS[self._focused_field]['key']
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val = self._form_data.get(field_key, '')
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if val:
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self._form_data[field_key] = val[:-1]
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self._dirty = True
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return None
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# Printable characters: append to current field
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if 32 <= key <= 126:
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field_def = _FIELDS[self._focused_field]
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field_key = field_def['key']
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val = self._form_data.get(field_key, '')
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if len(val) < field_def['width']:
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self._form_data[field_key] = val + chr(key)
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self._dirty = True
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return None
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return None
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def _save(self, db, renderer):
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"""Validate and save the form data."""
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data = dict(self._form_data)
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# Validate required fields
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if not data.get('name', '').strip():
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renderer.show_message("Nombre es requerido", "error")
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return None
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try:
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if self._editing_id:
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db.update_manufacturer(self._editing_id, data)
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renderer.show_message("Fabricante actualizado correctamente", "info")
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else:
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db.create_manufacturer(data)
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renderer.show_message("Fabricante creado correctamente", "info")
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except Exception as exc:
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renderer.show_message(f"Error al guardar:\n{exc}", "error")
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return None
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self._mode = 'list'
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self._dirty = False
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return None
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