Mage: warn with a non-blocking checker about solid lateral contributions, and rerun lateral contribution checkers when they are modified

src/Checker/Mage.py

@@ -254,3 +254,46 @@ for each reach"
                 return False
 
         return ok
+
+
+class MageLateralSolidChecker(AbstractModelChecker):
+    """Mage has no solid lateral contribution (notice: only upstream
+    solid discharges, QSO): the solid ones are not exported (LAT holds
+    liquid discharges only). Non blocking warning"""
+
+    def __init__(self, version="mage8"):
+        super(MageLateralSolidChecker, self).__init__()
+
+        self._name = _translate(
+            "Checker", "Mage solid lateral contributions checker")
+        self._description = _translate(
+            "Checker",
+            "Check if the study has solid lateral contributions, which "
+            "Mage does not take into account"
+        )
+        self._solver = version
+        self._modules = Modules.LATERAL_CONTRIBUTION
+
+    def run(self, study):
+        if not self.basic_check(study):
+            return False
+
+        edges = study.river.enable_edges()
+        names = [
+            lc.name
+            for lc in study.river.lateral_contribution.get_tab("solid")
+            if not lc.is_deleted() and lc.reach in edges and len(lc) > 0
+        ]
+
+        if len(names) == 0:
+            self._status = STATUS.OK
+            self._summary = "ok"
+            return True
+
+        self._status = STATUS.WARNING
+        self._summary = _translate(
+            "Checker",
+            "Solid lateral contributions not taken into account by Mage: "
+            "{names}"
+        ).format(names=", ".join(names))
+        return False