Included character escape in SQL strings

Author: CollinAlpert

README.MD

@@ -64,7 +64,7 @@ You can include the Maven dependency:
 <dependency>
     <groupId>com.github.collinalpert</groupId>
     <artifactId>lambda2sql</artifactId>
-    <version>2.1.3</version>
+    <version>2.1.4</version>
 </dependency>
 ```
 

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.github.collinalpert</groupId>
     <artifactId>lambda2sql</artifactId>
-    <version>2.1.3</version>
+    <version>2.1.4</version>
     <packaging>jar</packaging>
 
     <name>lambda2sql</name>
@@ -66,7 +66,7 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>5.3.2</version>
+            <version>5.5.1</version>
             <scope>test</scope>
         </dependency>
 
@@ -77,7 +77,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.8.0</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>${java-version}</source>
                     <target>${java-version}</target>
@@ -99,7 +99,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.0.1</version>
+                <version>3.1.0</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>
@@ -112,7 +112,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.0.1</version>
+                <version>3.1.1</version>
                 <configuration>
                     <additionalOptions>-html5</additionalOptions>
                 </configuration>

src/main/java/com/github/collinalpert/lambda2sql/SqlVisitor.java

@@ -160,7 +160,7 @@ public StringBuilder visit(ConstantExpression e) {
 		}
 
 		if (e.getValue() instanceof String || e.getValue() instanceof Temporal) {
-			return sb.append("'").append(e.getValue()).append("'");
+			return sb.append("'").append(escapeString(e.getValue().toString())).append("'");
 		}
 
 		return sb.append(e.getValue().toString());
@@ -318,4 +318,9 @@ private StringBuilder doStringOperation(Expression member, Expression argument,
 		modifier.accept(valueBuilder);
 		return member.accept(new SqlVisitor(this.tableName, this.withBackticks, this.arguments)).append(negated ? " NOT" : "").append(" LIKE ").append(valueBuilder);
 	}
+
+	private String escapeString(String input) {
+		input = input.replace("\\", "\\\\").replace("'", "\\'");
+		return input;
+	}
 }

src/test/java/com/github/collinalpert/lambda2sql/test/Lambda2SqlTest.java

@@ -3,6 +3,7 @@
 import com.github.collinalpert.lambda2sql.Lambda2Sql;
 import com.github.collinalpert.lambda2sql.functions.SqlFunction;
 import com.github.collinalpert.lambda2sql.functions.SqlPredicate;
+import com.trigersoft.jaque.expression.LambdaExpression;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
@@ -110,8 +111,11 @@ void testNotNull() {
 		var age = 17;
 		SqlPredicate<IPerson> p = person -> person.getAge() == age || person.getName() != isNull;
 		SqlPredicate<IPerson> p2 = person -> person.getName() != null;
+		SqlPredicate<IPerson> p3 = person -> person.getName() != null;
+		p3 = p3.and(t -> t.getAge() == 18);
 		assertPredicateEqual("`person`.`age` = 17 OR `person`.`name` IS NOT NULL", p);
 		assertPredicateEqual("`person`.`name` IS NOT NULL", p2);
+		assertPredicateEqual("`person`.`name` IS NOT NULL AND `person`.`age` = 18", p3);
 	}
 
 	@Test