From bd9ecbacf575a1926fb8e223c4add1a4cc45d7f3 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Mon, 16 Dec 2019 15:23:22 +0100
Subject: identify(): take into datum name aliases (fixes #1800)

---
 src/iso19111/common.cpp | 33 ++++++++++++++++++++-------------
 1 file changed, 20 insertions(+), 13 deletions(-)

(limited to 'src/iso19111/common.cpp')

diff --git a/src/iso19111/common.cpp b/src/iso19111/common.cpp
index 97900bda..f2e4de4c 100644
--- a/src/iso19111/common.cpp
+++ b/src/iso19111/common.cpp
@@ -901,19 +901,19 @@ void IdentifiedObject::formatRemarks(JSONFormatter *formatter) const {
 // ---------------------------------------------------------------------------
 
 bool IdentifiedObject::_isEquivalentTo(
-    const util::IComparable *other,
-    util::IComparable::Criterion criterion) const {
+    const util::IComparable *other, util::IComparable::Criterion criterion,
+    const io::DatabaseContextPtr &dbContext) const {
     auto otherIdObj = dynamic_cast<const IdentifiedObject *>(other);
     if (!otherIdObj)
         return false;
-    return _isEquivalentTo(otherIdObj, criterion);
+    return _isEquivalentTo(otherIdObj, criterion, dbContext);
 }
 
 // ---------------------------------------------------------------------------
 
-bool IdentifiedObject::_isEquivalentTo(const IdentifiedObject *otherIdObj,
-                                       util::IComparable::Criterion criterion)
-    PROJ_PURE_DEFN {
+bool IdentifiedObject::_isEquivalentTo(
+    const IdentifiedObject *otherIdObj, util::IComparable::Criterion criterion,
+    const io::DatabaseContextPtr &dbContext) PROJ_PURE_DEFN {
     if (criterion == util::IComparable::Criterion::STRICT) {
         if (!ci_equal(nameStr(), otherIdObj->nameStr())) {
             return false;
@@ -922,12 +922,19 @@ bool IdentifiedObject::_isEquivalentTo(const IdentifiedObject *otherIdObj,
     } else {
         if (!metadata::Identifier::isEquivalentName(
                 nameStr().c_str(), otherIdObj->nameStr().c_str())) {
-            return false;
+            return hasEquivalentNameToUsingAlias(otherIdObj, dbContext);
         }
     }
     return true;
 }
 
+// ---------------------------------------------------------------------------
+
+bool IdentifiedObject::hasEquivalentNameToUsingAlias(
+    const IdentifiedObject *, const io::DatabaseContextPtr &) const {
+    return false;
+}
+
 //! @endcond
 
 // ---------------------------------------------------------------------------
@@ -1092,8 +1099,8 @@ void ObjectDomain::_exportToJSON(JSONFormatter *formatter) const {
 
 //! @cond Doxygen_Suppress
 bool ObjectDomain::_isEquivalentTo(
-    const util::IComparable *other,
-    util::IComparable::Criterion criterion) const {
+    const util::IComparable *other, util::IComparable::Criterion criterion,
+    const io::DatabaseContextPtr &dbContext) const {
     auto otherDomain = dynamic_cast<const ObjectDomain *>(other);
     if (!otherDomain)
         return false;
@@ -1106,7 +1113,7 @@ bool ObjectDomain::_isEquivalentTo(
         return false;
     return domainOfValidity().get() == nullptr ||
            domainOfValidity()->_isEquivalentTo(
-               otherDomain->domainOfValidity().get(), criterion);
+               otherDomain->domainOfValidity().get(), criterion, dbContext);
 }
 //! @endcond
 
@@ -1249,14 +1256,14 @@ void ObjectUsage::baseExportToJSON(JSONFormatter *formatter) const {
 
 //! @cond Doxygen_Suppress
 bool ObjectUsage::_isEquivalentTo(
-    const util::IComparable *other,
-    util::IComparable::Criterion criterion) const {
+    const util::IComparable *other, util::IComparable::Criterion criterion,
+    const io::DatabaseContextPtr &dbContext) const {
     auto otherObjUsage = dynamic_cast<const ObjectUsage *>(other);
     if (!otherObjUsage)
         return false;
 
     // TODO: incomplete
-    return IdentifiedObject::_isEquivalentTo(other, criterion);
+    return IdentifiedObject::_isEquivalentTo(other, criterion, dbContext);
 }
 //! @endcond
 
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