pamhyr: Add just-in-time database geometry loading.

src/Model/Geometry/Reach.py

@@ -94,8 +94,8 @@ class Reach(SQLSubModel):
         Returns:
             The profile at index i
         """
-        if i < len(self._profiles):
-            return self._profiles[i]
+        if i < len(self.profiles):
+            return self.profiles[i]
 
         return None
 
@@ -106,12 +106,32 @@ class Reach(SQLSubModel):
 
         return self._parent.name
 
+    def _get_profiles_list(self):
+        # Profiles list generator is type (int, Point) with the first
+        # element the index of the Point in list
+        logger.info(f"Load profiles from reach {self.name}")
+        return list(
+            map(
+                lambda p: p[1],
+                sorted(
+                    self._profiles,
+                    key = lambda p: p[0]
+                )
+            )
+        )
+
     def __len__(self):
+        if not isinstance(self._profiles, list):
+            self._profiles = self._get_profiles_list()
+
         return len(self._profiles)
 
     @property
     def profiles(self):
-        return self._profiles.copy()
+        if not isinstance(self._profiles, list):
+            self._profiles = self._get_profiles_list()
+
+        return self._profiles
 
     def get_profiles_from_kp(self, kp):
         return list(
@@ -126,14 +146,14 @@ class Reach(SQLSubModel):
         Returns:
             Number of profiles
         """
-        return len(self._profiles)
+        return len(self.profiles)
 
     def get_geometry(self) -> List[Profile]:
         """
         Returns:
             The profiles list.
         """
-        return self._profiles
+        return self.profiles
 
     def _update_profile_numbers(self):
         """Update profiles index
@@ -155,7 +175,7 @@ class Reach(SQLSubModel):
         """
         profile = ProfileXYZ(reach=self, status=self._status)
 
-        self._profiles.insert(index, profile)
+        self.profiles.insert(index, profile)
         self._update_profile_numbers()
 
         self._status.modified()
@@ -171,7 +191,7 @@ class Reach(SQLSubModel):
         Returns:
             Nothing.
         """
-        self._profiles.insert(index, profile)
+        self.profiles.insert(index, profile)
         self._update_profile_numbers()
         self._status.modified()
 
@@ -195,7 +215,7 @@ class Reach(SQLSubModel):
             )
         )
 
-        self._profiles = list(
+        self.profiles = list(
             filter(
                 lambda p: p not in profiles,
                 self.profiles
@@ -213,7 +233,7 @@ class Reach(SQLSubModel):
         Returns:
             Nothing.
         """
-        self._profiles = list(
+        self.profiles = list(
             filter(
                 lambda p: p not in profiles,
                 self.profiles
@@ -227,7 +247,7 @@ class Reach(SQLSubModel):
         if index < len(self.profiles):
             next = index - 1
 
-            p = self._profiles
+            p = self.profiles
             p[index], p[next] = p[next], p[index]
             self._status.modified()
 
@@ -235,7 +255,7 @@ class Reach(SQLSubModel):
         if index >= 0:
             prev = index + 1
 
-            p = self._profiles
+            p = self.profiles
             p[index], p[prev] = p[prev], p[index]
             self._status.modified()
 
@@ -347,7 +367,7 @@ class Reach(SQLSubModel):
             Tuple of complete and incomplete guidelines name.
         """
         # Get all point contains into a guideline
-        named_points = [profile.named_points() for profile in self._profiles]
+        named_points = [profile.named_points() for profile in self.profiles]
         points_name = list(
             map(
                 lambda lst: list(map(lambda p: p.name, lst)),
@@ -422,8 +442,8 @@ class Reach(SQLSubModel):
 
     @timer
     def sort(self, is_reversed: bool = False):
-        self._profiles = sorted(
-            self._profiles,
+        self.profiles = sorted(
+            self.profiles,
             key=lambda profile: profile.kp,
             reverse=is_reversed
         )
@@ -431,10 +451,10 @@ class Reach(SQLSubModel):
 
     @timer
     def sort_with_indexes(self, indexes: list):
-        if len(self._profiles) != len(indexes):
+        if len(self.profiles) != len(indexes):
             logger.critical("Indexes list do not correspond to profile list")
 
-        self._profiles = list(
+        self.profiles = list(
             map(
                 lambda x: x[1],
                 sorted(
@@ -474,7 +494,7 @@ class Reach(SQLSubModel):
                         **d, reach=self, status=self._status
                     )
                     prof.import_points(profile)
-                    self._profiles.append(prof)
+                    self.profiles.append(prof)
                     self._update_profile_numbers()
 
                 self._status.modified()
@@ -538,8 +558,8 @@ class Reach(SQLSubModel):
     # TODO: Move this function to model reach
     def export_reach(self, filename):
         with open(f"{filename}", "w") as file_st:
-            for index in range(len(self._profiles)):
-                profile = self._profiles[index]
+            for index in range(len(self.profiles)):
+                profile = self.profiles[index]
 
                 for v in profile.header:
                     file_st.write(f"{v:>6}")