Add the 'like' to the Criteria class

.travis.yml

@@ -19,6 +19,7 @@ addons:
     - uuid-dev
     - zlib1g-dev
     - postgresql-server-dev-10
+    - libmariadbclient-dev
     - openssl
     - libssl-dev
     - build-essential
@@ -30,6 +31,7 @@ addons:
     - libtool
     - lz4
     - postgresql
+    - mariadb
 
 script:
   - ./build.sh

orm_lib/inc/drogon/orm/Criteria.h

@@ -33,6 +33,7 @@ enum class CompareOperator
     GE,
     LT,
     LE,
+    LIKE,
     IsNull,
     IsNotNull
 };
@@ -67,6 +68,9 @@ class Criteria
         case CompareOperator::LE:
             _condString += " <= $?";
             break;
+        case CompareOperator::LIKE:
+            _condString += " like $?";
+            break;
         case CompareOperator::IsNull:
         case CompareOperator::IsNotNull:
         default: