New features, counting registers, fetch one

src/BBOrm/DBInstance.php

@@ -19,6 +19,11 @@ class DBInstance {
         return $con->query($sql, \PDO::FETCH_OBJ);
     }
     
+    public static function query_one($sql, $instance = 'default') {
+        $con = Connections::get_connection('default');
+        return $con->query($sql, \PDO::FETCH_OBJ)->fetch();
+    }
+
     public static function query_prepare($sql, $arguments, $instance = 'default'){
         $con = Connections::get_connection('default');
         $statement = $con->prepare($sql);

src/BBOrm/Entity.php

@@ -147,6 +147,34 @@ abstract class Entity {
         return $objects;
     }
 
+    public function count($criterias = Array(), $trashed = false) {
+        $criteria_sql = "";
+
+        foreach ($criterias as $key => $criteria) {
+            if ($criteria_sql != "") {
+                $criteria_sql .= " AND ";
+            } else {
+                $criteria_sql .= " WHERE ";
+            }
+
+            if (is_string($criteria[1])) {
+                $criteria_sql .= "$key $criteria[0] '$criteria[1]'";
+            } else {
+                $criteria_sql .= "$key $criteria[0] $criteria[1]";
+            }
+        }
+
+        if ($this->softdelete && !$trashed) {
+            $sql = "SELECT COUNT(*) FROM $this->table_name $criteria_sql AND deleted_at is null";
+        } else {
+            $sql = "SELECT COUNT(*) FROM $this->table_name $criteria_sql";
+        }
+
+        $results = DBInstance::query_one($sql, $this->connection_name);
+
+        return $results->count;
+    }
+
     public function find_one($criterias = Array(), $select = Array('*'), $trashed = false) {
         $select_sql = "";
         $criteria_sql = "";
@@ -157,6 +185,8 @@ abstract class Entity {
         foreach ($criterias as $key => $criteria) {
             if ($criteria_sql != "") {
                 $criteria_sql .= " AND ";
+            } else {
+                $criteria_sql .= " WHERE ";
             }
             if (is_string($criteria[1])) {
                 $criteria_sql .= "$key $criteria[0] '$criteria[1]'";
@@ -175,9 +205,9 @@ abstract class Entity {
         }
 
         if ($this->softdelete && !$trashed) {
-            $sql = "SELECT $select_sql FROM $this->table_name WHERE $criteria_sql AND deleted_at is null $limits_sql";
+            $sql = "SELECT $select_sql FROM $this->table_name $criteria_sql AND deleted_at is null $limits_sql";
         } else {
-            $sql = "SELECT $select_sql FROM $this->table_name WHERE $criteria_sql $limits_sql";
+            $sql = "SELECT $select_sql FROM $this->table_name $criteria_sql $limits_sql";
         }
         $results = DBInstance::query($sql, $this->connection_name);
         $objects = Array();
@@ -205,6 +235,8 @@ abstract class Entity {
         foreach ($criterias as $key => $criteria) {
             if ($criteria_sql != "") {
                 $criteria_sql .= " AND ";
+            } else {
+                $criteria_sql .= " WHERE ";
             }
             if (is_string($criteria[1])) {
                 $criteria_sql .= "$key $criteria[0] '$criteria[1]'";
@@ -221,9 +253,9 @@ abstract class Entity {
         $select_sql = rtrim($select_sql, ', ');
 
         if ($this->softdelete && !$trashed) {
-            $sql = "SELECT $select_sql FROM $this->table_name WHERE $criteria_sql AND deleted_at is null $limits_sql";
+            $sql = "SELECT $select_sql FROM $this->table_name $criteria_sql AND deleted_at is null $limits_sql";
         } else {
-            $sql = "SELECT $select_sql FROM $this->table_name WHERE $criteria_sql $limits_sql";
+            $sql = "SELECT $select_sql FROM $this->table_name $criteria_sql $limits_sql";
         }
 
         $results = DBInstance::query($sql, $this->connection_name);