diff --git a/src/db/error.rs b/src/db/error.rs
new file mode 100644
index 0000000..f8ee401
--- /dev/null
+++ b/src/db/error.rs
@@ -0,0 +1,152 @@
+use std::fmt;
+
+use sqlx::error::DatabaseError as _;
+
+pub enum DatabaseError {
+    /// Errors we can receive **from** the database that are caused by connection
+    /// problems or schema problems (e.g. we get a return value that does not fit our enum,
+    /// or a wrongly formatted date)
+    Sql {
+        description: String,
+    },
+    Uuid {
+        description: String,
+    },
+    Enum {
+        description: String,
+    },
+    TimeParse {
+        description: String,
+    },
+}
+
+impl fmt::Display for DatabaseError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Self::Sql { description } => {
+                write!(f, "SQL error: {description}")
+            }
+            Self::Uuid { description } => {
+                write!(f, "UUID error: {description}")
+            }
+            Self::Enum { description } => {
+                write!(f, "Enum error: {description}")
+            }
+            Self::TimeParse { description } => {
+                write!(f, "Date parse error: {description}")
+            }
+        }
+    }
+}
+
+pub enum QueryError {
+    /// Errors that are caused by wrong input data, e.g. ids that cannot be found, or
+    /// inserts that violate unique constraints
+    Duplicate {
+        description: String,
+    },
+    NotFound {
+        description: String,
+    },
+    ReferenceNotFound {
+        description: String,
+    },
+}
+
+impl fmt::Display for QueryError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Self::Duplicate { description } => {
+                write!(f, "Duplicate data entry: {description}")
+            }
+            Self::NotFound { description } => {
+                write!(f, "not found: {description}")
+            }
+            Self::ReferenceNotFound { description } => {
+                write!(f, "SQL foreign key reference was not found: {description}")
+            }
+        }
+    }
+}
+
+pub enum Error {
+    Database(DatabaseError),
+    Query(QueryError),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Self::Database(error) => write!(f, "{error}"),
+            Self::Query(error) => write!(f, "{error}"),
+        }
+    }
+}
+
+impl fmt::Debug for Error {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        // defer to Display
+        write!(f, "SQL error: {self}")
+    }
+}
+
+impl From<uuid::Error> for Error {
+    fn from(value: uuid::Error) -> Self {
+        Error::Database(DatabaseError::Uuid {
+            description: value.to_string(),
+        })
+    }
+}
+
+impl From<time::error::Format> for Error {
+    fn from(value: time::error::Format) -> Self {
+        Error::Database(DatabaseError::TimeParse {
+            description: value.to_string(),
+        })
+    }
+}
+
+impl From<sqlx::Error> for Error {
+    fn from(value: sqlx::Error) -> Self {
+        match value {
+            sqlx::Error::RowNotFound => Error::Query(QueryError::NotFound {
+                description: value.to_string(),
+            }),
+            sqlx::Error::Database(ref error) => {
+                let sqlite_error = error.downcast_ref::<sqlx::sqlite::SqliteError>();
+                if let Some(code) = sqlite_error.code() {
+                    match &*code {
+                        // SQLITE_CONSTRAINT_FOREIGNKEY
+                        "787" => Error::Query(QueryError::ReferenceNotFound {
+                            description: "foreign key reference not found".to_string(),
+                        }),
+                        // SQLITE_CONSTRAINT_UNIQUE
+                        "2067" => Error::Query(QueryError::Duplicate {
+                            description: "item with unique constraint already exists".to_string(),
+                        }),
+                        _ => Error::Database(DatabaseError::Sql {
+                            description: format!("got error with unknown code: {sqlite_error}"),
+                        }),
+                    }
+                } else {
+                    Error::Database(DatabaseError::Sql {
+                        description: format!("got error without code: {sqlite_error}"),
+                    })
+                }
+            }
+            _ => Error::Database(DatabaseError::Sql {
+                description: format!("got unknown error: {value}"),
+            }),
+        }
+    }
+}
+
+impl From<time::error::Parse> for Error {
+    fn from(value: time::error::Parse) -> Self {
+        Error::Database(DatabaseError::TimeParse {
+            description: value.to_string(),
+        })
+    }
+}
+
+impl std::error::Error for Error {}
diff --git a/src/db/mod.rs b/src/db/mod.rs
index a9cbee4..5db733f 100644
--- a/src/db/mod.rs
+++ b/src/db/mod.rs
@@ -2,6 +2,7 @@ use base64::Engine as _;
 use sha2::{Digest, Sha256};
 use std::fmt;
 
+pub mod error;
 pub mod postgres;
 pub mod sqlite;
 
diff --git a/src/models/error.rs b/src/models/error.rs
index f8ee401..7f311fb 100644
--- a/src/models/error.rs
+++ b/src/models/error.rs
@@ -1,152 +1 @@
-use std::fmt;
-
-use sqlx::error::DatabaseError as _;
-
-pub enum DatabaseError {
-    /// Errors we can receive **from** the database that are caused by connection
-    /// problems or schema problems (e.g. we get a return value that does not fit our enum,
-    /// or a wrongly formatted date)
-    Sql {
-        description: String,
-    },
-    Uuid {
-        description: String,
-    },
-    Enum {
-        description: String,
-    },
-    TimeParse {
-        description: String,
-    },
-}
-
-impl fmt::Display for DatabaseError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match self {
-            Self::Sql { description } => {
-                write!(f, "SQL error: {description}")
-            }
-            Self::Uuid { description } => {
-                write!(f, "UUID error: {description}")
-            }
-            Self::Enum { description } => {
-                write!(f, "Enum error: {description}")
-            }
-            Self::TimeParse { description } => {
-                write!(f, "Date parse error: {description}")
-            }
-        }
-    }
-}
-
-pub enum QueryError {
-    /// Errors that are caused by wrong input data, e.g. ids that cannot be found, or
-    /// inserts that violate unique constraints
-    Duplicate {
-        description: String,
-    },
-    NotFound {
-        description: String,
-    },
-    ReferenceNotFound {
-        description: String,
-    },
-}
-
-impl fmt::Display for QueryError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match self {
-            Self::Duplicate { description } => {
-                write!(f, "Duplicate data entry: {description}")
-            }
-            Self::NotFound { description } => {
-                write!(f, "not found: {description}")
-            }
-            Self::ReferenceNotFound { description } => {
-                write!(f, "SQL foreign key reference was not found: {description}")
-            }
-        }
-    }
-}
-
-pub enum Error {
-    Database(DatabaseError),
-    Query(QueryError),
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match self {
-            Self::Database(error) => write!(f, "{error}"),
-            Self::Query(error) => write!(f, "{error}"),
-        }
-    }
-}
-
-impl fmt::Debug for Error {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        // defer to Display
-        write!(f, "SQL error: {self}")
-    }
-}
-
-impl From<uuid::Error> for Error {
-    fn from(value: uuid::Error) -> Self {
-        Error::Database(DatabaseError::Uuid {
-            description: value.to_string(),
-        })
-    }
-}
-
-impl From<time::error::Format> for Error {
-    fn from(value: time::error::Format) -> Self {
-        Error::Database(DatabaseError::TimeParse {
-            description: value.to_string(),
-        })
-    }
-}
-
-impl From<sqlx::Error> for Error {
-    fn from(value: sqlx::Error) -> Self {
-        match value {
-            sqlx::Error::RowNotFound => Error::Query(QueryError::NotFound {
-                description: value.to_string(),
-            }),
-            sqlx::Error::Database(ref error) => {
-                let sqlite_error = error.downcast_ref::<sqlx::sqlite::SqliteError>();
-                if let Some(code) = sqlite_error.code() {
-                    match &*code {
-                        // SQLITE_CONSTRAINT_FOREIGNKEY
-                        "787" => Error::Query(QueryError::ReferenceNotFound {
-                            description: "foreign key reference not found".to_string(),
-                        }),
-                        // SQLITE_CONSTRAINT_UNIQUE
-                        "2067" => Error::Query(QueryError::Duplicate {
-                            description: "item with unique constraint already exists".to_string(),
-                        }),
-                        _ => Error::Database(DatabaseError::Sql {
-                            description: format!("got error with unknown code: {sqlite_error}"),
-                        }),
-                    }
-                } else {
-                    Error::Database(DatabaseError::Sql {
-                        description: format!("got error without code: {sqlite_error}"),
-                    })
-                }
-            }
-            _ => Error::Database(DatabaseError::Sql {
-                description: format!("got unknown error: {value}"),
-            }),
-        }
-    }
-}
-
-impl From<time::error::Parse> for Error {
-    fn from(value: time::error::Parse) -> Self {
-        Error::Database(DatabaseError::TimeParse {
-            description: value.to_string(),
-        })
-    }
-}
-
-impl std::error::Error for Error {}
+pub use crate::db::error::{Error, QueryError, DatabaseError};
diff --git a/src/models/trips/mod.rs b/src/models/trips/mod.rs
index 39e519b..2729d04 100644
--- a/src/models/trips/mod.rs
+++ b/src/models/trips/mod.rs
@@ -1018,11 +1018,7 @@ impl Trip {
     }
 
     #[tracing::instrument]
-    pub async fn load_todos(
-        &mut self,
-        ctx: &Context,
-        pool: &db::Pool,
-    ) -> Result<(), Error> {
+    pub async fn load_todos(&mut self, ctx: &Context, pool: &db::Pool) -> Result<(), Error> {
         self.todos = Some(
             crate::components::trips::todos::Todo::findall(
                 ctx,
@@ -1035,11 +1031,7 @@ impl Trip {
     }
 
     #[tracing::instrument]
-    pub async fn load_trips_types(
-        &mut self,
-        ctx: &Context,
-        pool: &db::Pool,
-    ) -> Result<(), Error> {
+    pub async fn load_trips_types(&mut self, ctx: &Context, pool: &db::Pool) -> Result<(), Error> {
         let user_id = ctx.user.id.to_string();
         let id = self.id.to_string();
         let types = crate::query_all!(
@@ -1176,11 +1168,7 @@ impl Trip {
     }
 
     #[tracing::instrument]
-    pub async fn load_categories(
-        &mut self,
-        ctx: &Context,
-        pool: &db::Pool,
-    ) -> Result<(), Error> {
+    pub async fn load_categories(&mut self, ctx: &Context, pool: &db::Pool) -> Result<(), Error> {
         let mut categories: Vec<TripCategory> = vec![];
         // we can ignore the return type as we collect into `categories`
         // in the `map_ok()` closure