diff --git a/paramecio/citoplasma/generate_admin_class.py b/paramecio/citoplasma/generate_admin_class.py
index 2732fa2..8d43b7a 100644
--- a/paramecio/citoplasma/generate_admin_class.py
+++ b/paramecio/citoplasma/generate_admin_class.py
@@ -87,6 +87,8 @@ class GenerateAdminClass:
             
             post=GetPostFiles.post
             
+            self.model.reset_conditions()
+            
             insert_row=self.model.insert
             
             try:
diff --git a/paramecio/cromosoma/corefields.py b/paramecio/cromosoma/corefields.py
index a0a6eec..fb59b70 100644
--- a/paramecio/cromosoma/corefields.py
+++ b/paramecio/cromosoma/corefields.py
@@ -100,6 +100,10 @@ class ForeignKeyField(IntegerField):
     
         self.foreignkey=True
 
+    def get_type_sql(self):
+
+        return 'INT NULL'
+
 class BooleanField(IntegerField):
     
     def __init__(self, name, size=1):
diff --git a/paramecio/cromosoma/formsutils.py b/paramecio/cromosoma/formsutils.py
index e6b8d23..daa9db8 100644
--- a/paramecio/cromosoma/formsutils.py
+++ b/paramecio/cromosoma/formsutils.py
@@ -3,12 +3,16 @@
 from paramecio.cromosoma import corefields
 from bottle import request
 
+# Need unittest
+
 def pass_values_to_form(post, arr_form, yes_error=True):
     
     for key, value in arr_form.items():
+        
         post[key]=post.get(key, '')
-
-        arr_form[key].default_value=post[key]
+        
+        if arr_form[key].default_value=='':
+            arr_form[key].default_value=post[key]
         
         if arr_form[key].field==None:
            arr_form[key].field=corefields.CharField(key, 255, required=False)