Redirect epsg:XXXX and IGNF:XXXX CRS expansions to the database, and remove the data/epsg and data/IGNF files

1 files changed, 19 insertions, 0 deletions

diff --git a/src/factory.cpp b/src/factory.cpp
index 3c360d13..f58b66a0 100644
--- a/src/factory.cpp
+++ b/src/factory.cpp
@@ -157,6 +157,8 @@ struct DatabaseContext::Private {
     };
 
   private:
+    friend class DatabaseContext;
+
     std::string databasePath_{};
     bool close_handle_ = true;
     sqlite3 *sqlite_handle_{};
@@ -164,6 +166,7 @@ struct DatabaseContext::Private {
     PJ_CONTEXT *pjCtxt_ = nullptr;
     int recLevel_ = 0;
     bool detach_ = false;
+    std::string lastMetadataValue_{};
 
     void closeDB();
 
@@ -704,6 +707,22 @@ const std::string &DatabaseContext::getPath() const { return d->getPath(); }
 
 // ---------------------------------------------------------------------------
 
+/** \brief Return a metadata item.
+ *
+ * Value remains valid while this is alive and to the next call to getMetadata
+ */
+const char *DatabaseContext::getMetadata(const char *key) const {
+    auto res =
+        d->run("SELECT value FROM metadata WHERE key = ?", {std::string(key)});
+    if (res.empty()) {
+        return nullptr;
+    }
+    d->lastMetadataValue_ = res[0][0];
+    return d->lastMetadataValue_.c_str();
+}
+
+// ---------------------------------------------------------------------------
+
 //! @cond Doxygen_Suppress
 
 DatabaseContextNNPtr DatabaseContext::create(void *sqlite_handle) {