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Merge pull request #26 from ARUP-CAS/polymorphic-relation
Polymorphic relation instead of the standard ones; code cleanup
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GitHub
+42
-27
@@ -1,16 +1,13 @@
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# -*- coding: utf-8 -*-
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from qgis.gui import QgsMapToolIdentifyFeature
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from qgis.core import (QgsProject, QgsVectorLayer, QgsFeature, QgsGeometry,
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QgsField, QgsCoordinateReferenceSystem, QgsCoordinateTransform,
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QgsWkbTypes, QgsRelation, QgsEditorWidgetSetup, Qgis)
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QgsWkbTypes, QgsPolymorphicRelation, QgsEditorWidgetSetup, Qgis)
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from qgis.utils import iface
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from qgis.PyQt.QtCore import Qt, QMetaType
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from qgis.PyQt.QtWidgets import QMessageBox, QApplication
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from qgis.PyQt.QtWidgets import QApplication
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from qgis.PyQt.QtGui import QCursor
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import requests
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import json
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import xml.etree.ElementTree as ET
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import re
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# Global cache to store translated terms from the Digital Archive
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TRANSLATIONS = {}
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@@ -149,6 +146,7 @@ def load_amcr_data(canvas, bb, filters=None, typ_dat="akce", komponenty="false")
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# pian_lookup maps a Geometry ID (PIAN) to a list of its associated metadata
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pian_lookup = {}
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komponenty_lookup = {}
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target_pian_ids = set()
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actions_with_geom = 0
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@@ -258,15 +256,15 @@ def load_amcr_data(canvas, bb, filters=None, typ_dat="akce", komponenty="false")
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if komponenty == "true":
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komps = dj.get('dj_komponenta', [])
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for komp in komps:
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feat = QgsFeature()
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atributy = [
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komp_temp = [
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komp.get('ident_cely', ""),
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dj_id,
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komp.get('komponenta_areal', {}).get('value', ""),
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komp.get('komponenta_obdobi', {}).get('value', "")
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]
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feat.setAttributes(atributy)
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feats_k.append(feat)
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if dj_id not in komponenty_lookup:
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komponenty_lookup[dj_id] = []
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komponenty_lookup[dj_id].append(komp_temp)
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if not target_pian_ids:
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iface.messageBar().pushMessage("AMCR", f"Nalezeno {len(docs)} záznamů, ale žádný nemá geometrii.", level=Qgis.MessageLevel.Warning)
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@@ -374,14 +372,14 @@ def load_amcr_data(canvas, bb, filters=None, typ_dat="akce", komponenty="false")
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QgsField("komponenta", QMetaType.Type.QString),
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QgsField("dj_id", QMetaType.Type.QString),
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QgsField("komponenta_areal", QMetaType.Type.QString),
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QgsField("komponenta_obdobi", QMetaType.Type.QString)
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QgsField("komponenta_obdobi", QMetaType.Type.QString),
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QgsField("vrstva", QMetaType.Type.QString)
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]
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pr.addAttributes(komponenty_cols)
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vl_komponenty.updateFields()
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idx_dj_id = vl_komponenty.fields().indexOf("dj_id")
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text_setup = QgsEditorWidgetSetup("TextEdit", {})
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vl_komponenty.setEditorWidgetSetup(idx_dj_id, text_setup)
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idx_vrstva = vl_komponenty.fields().indexOf("vrstva")
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vl_komponenty.setEditorWidgetSetup(idx_vrstva, QgsEditorWidgetSetup("Hidden", {}))
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for vl in layers:
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vl.dataProvider().addAttributes(cols)
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@@ -429,10 +427,13 @@ def load_amcr_data(canvas, bb, filters=None, typ_dat="akce", komponenty="false")
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target_list = None
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if t == QgsWkbTypes.PolygonGeometry:
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target_list = feats_p
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referenced_layer = vl_poly
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elif t == QgsWkbTypes.LineGeometry:
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target_list = feats_l
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referenced_layer = vl_line
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elif t == QgsWkbTypes.PointGeometry:
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target_list = feats_pt
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referenced_layer = vl_point
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if target_list is None:
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continue
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@@ -464,6 +465,11 @@ def load_amcr_data(canvas, bb, filters=None, typ_dat="akce", komponenty="false")
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meta['lokalita_zachovalost']
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])
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if komponenty == "true" and meta['dj_id'] in komponenty_lookup:
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for k in komponenty_lookup[meta['dj_id']]:
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if len(k) == 3:
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k.append(referenced_layer.id())
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atributy.append(meta['pristupnost'])
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feat.setAttributes(atributy)
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target_list.append(feat)
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@@ -472,6 +478,17 @@ def load_amcr_data(canvas, bb, filters=None, typ_dat="akce", komponenty="false")
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print(f"Chyba při tvorbě feature: {ex}")
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pass
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if komponenty == "true":
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for k in komponenty_lookup:
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for komp in komponenty_lookup[k]:
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if len(komp) == 4:
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feat = QgsFeature()
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atributy = [
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komp[0], k, komp[1], komp[2], komp[3]
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]
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feat.setAttributes(atributy)
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feats_k.append(feat)
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# --- ADDING TO QGIS INTERFACE ---
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proj = QgsProject.instance()
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added = 0
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@@ -499,24 +516,22 @@ def load_amcr_data(canvas, bb, filters=None, typ_dat="akce", komponenty="false")
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# --- RELATIONSHIP MANAGEMENT ---
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# Set up automatic links between spatial layers and the component table
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if komponenty == "true":
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parent_layers = [
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(vl_poly, "Polygony"),
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(vl_line, "Linie"),
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(vl_point, "Body")
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]
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parent_layers_ids = [vl_poly.id(), vl_line.id(), vl_point.id()]
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rel_manager = proj.relationManager()
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for parent_layer, label in parent_layers:
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rel = QgsRelation()
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rel_name = f"Komponenty pro {label}"
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rel.setName(rel_name)
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rel = QgsPolymorphicRelation()
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rel.setId(f"rel_komponenty_{archeologicky_zaznam}")
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rel.setName("Komponenty")
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rel.setReferencingLayer(vl_komponenty.id())
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rel.setReferencedLayer(parent_layer.id())
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rel.setReferencedLayerExpression("@layer_id")
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rel.setReferencedLayerField("vrstva")
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rel.setReferencedLayerIds(parent_layers_ids)
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rel.addFieldPair("dj_id", "Dokumentační jednotka")
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rel.generateId()
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if rel.isValid():
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rel_manager.addRelation(rel)
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rel_manager.addPolymorphicRelation(rel)
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else:
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print(f"Relace pro {label} není validní!")
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print("Relace Komponenty není validní!")
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else:
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iface.messageBar().pushMessage("AMCR", "Žádná data k zobrazení.", level=Qgis.MessageLevel.Info)
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