Implement searching no tag

src/main.zig

@@ -60,7 +60,7 @@ pub fn main() !void {
     // -------------------- QUERY ---------------------------
 
     const jsonQuery: [:0]const u8 =
-        \\{ "query" : "fur made_with:krita date:2022", "limit" : 20 }
+        \\{ "query" : "" }
     ;
 
     var jquery = json.Obj.newFromString(jsonQuery);

src/request.zig

@@ -63,9 +63,6 @@ pub fn query(jobj: *json.Obj, db: *Db, allocator: std.mem.Allocator) !json.Obj {
     const query_str = jobj.getString();
     var jret = json.Obj.newArray();
 
-    // Go through each tag
-    var tag_iter = std.mem.split(u8, query_str, " ");
-
     var ids = std.ArrayList([]u8).init(allocator);
     defer {
         for (ids.items) |item| {
@@ -74,16 +71,22 @@ pub fn query(jobj: *json.Obj, db: *Db, allocator: std.mem.Allocator) !json.Obj {
         ids.deinit();
     }
 
-    while (tag_iter.next()) |tag| {
-        // Get the tag selector: "tag:<tag>"
-        const tag_sel = try std.mem.concat(allocator, u8, &[_][]const u8{ "tag:", tag });
-        defer allocator.free(tag_sel);
+    if (query_str.len > 0) {
+        // Get all the items under the individual tags
+        var tag_iter = std.mem.split(u8, query_str, " ");
+        while (tag_iter.next()) |tag| {
+            // Get the tag selector: "tag:<tag>"
+            const tag_sel = try std.mem.concat(allocator, u8, &[_][]const u8{ "tag:", tag });
+            defer allocator.free(tag_sel);
 
-        // Get the items that have that tag: "<item1> <item2> <item3>"
-        try ids.append(db.get(tag_sel) orelse return jret);
+            // Get the items that have that tag: "<item1> <item2> <item3>"
+            try ids.append(db.get(tag_sel) orelse return jret);
 
-        // This has been deferred before.
-        //defer Db.free(tag_str.ptr);
+            // This has been deferred before.
+            //defer Db.free(tag_str.ptr);
+        }
+    } else {
+        try ids.append(db.get("item") orelse return jret);
     }
 
     var id_iter = util.intersection(ids.items);