Enum SchemaError 

pub enum SchemaError {
    DuplicateNamespace {
        namespace: String,
    },
    ForeignKeyNotPrimaryKey {
        table: String,
        key: String,
    },
    SetDefault {
        table: String,
        key: String,
    },
    LocalChildAction {
        table: String,
        column: String,
    },
    LocalChildUpdate {
        table: String,
        column: String,
    },
    MissingTable {
        table: String,
    },
    DuplicateTable {
        table: String,
    },
    OwnerOnlyChanged {
        table: String,
    },
    TwoAudiences {
        table: String,
    },
    FileColumnsChanged {
        table: String,
    },
    FileColumnRepeated {
        table: String,
        column: String,
    },
    FileColumnGenerated {
        table: String,
        column: String,
    },
    FilesForeignKey {
        table: String,
        key: String,
    },
    FileColumnForeignKey {
        table: String,
        column: String,
    },
    FileColumn {
        table: String,
        column: String,
    },
    MissingTrigger {
        table: String,
        trigger: String,
    },
    NoPrimaryKey {
        table: String,
    },
    NullableKey {
        table: String,
        column: String,
    },
    KeyCollation {
        table: String,
        column: String,
        collation: String,
    },
    GeneratedPrimaryKey {
        table: String,
    },
    IndependentKeyNotUuid {
        table: String,
    },
    KeyColumns {
        table: String,
    },
    GeneratedForeignKey {
        table: String,
        column: String,
    },
    ImpossibleAction {
        table: String,
        column: String,
    },
    PrimaryKeyAction {
        table: String,
        column: String,
    },
    AudienceColumn {
        table: String,
        column: String,
    },
    AudienceForeignKeyColumns {
        table: String,
    },
    AudienceForeignKeyTarget {
        table: String,
        column: String,
    },
    AudienceForeignKeyAction {
        table: String,
        column: String,
    },
    AudienceCycle {
        table: String,
    },
    AudienceConstraint {
        table: String,
        constraint: String,
    },
    SharedTriggerGuard {
        table: String,
        trigger: String,
    },
    TriggerTiming {
        trigger: String,
        table: String,
    },
}

A schema rule checked on open and after migrating (§9, §15.1).

Variants

DuplicateNamespace

Two namespace declarations share a name (E1).

Fields

namespace: String

The namespace.

ForeignKeyNotPrimaryKey

A synced foreign key does not reference the complete parent primary key (§9.1).

Fields

table: String

The referencing synced table.

key: String

The foreign key’s columns and referenced table and columns, as SQL.

SetDefault

SET DEFAULT is on a synced table or references one (§9.1).

Fields

table: String

The referencing table.

key: String

The foreign key’s columns and referenced table and columns, as SQL.

LocalChildAction

A local foreign key could prevent deletion of a synced row (§9.1).

Fields

table: String

The local child table.

column: String

The referencing column.

LocalChildUpdate

A local foreign key could stop coven updating a synced value in place (§9.1).

Fields

table: String

The local child table.

column: String

The referencing column.

MissingTable

A declared synced table isn’t in the database (E2).

Fields

table: String

The declared table.

DuplicateTable

Two declarations name one table (E2).

Fields

table: String

The repeated table.

OwnerOnlyChanged

A synced table’s owner_only declaration changed without a breaking migration to raise the schema (§18.3).

Fields

table: String

The table whose declaration changed.

TwoAudiences

A table declares both audience_column and audience_from (E2).

Fields

table: String

The declared table.

FileColumnsChanged

A synced table’s file reference columns changed without a breaking migration to raise the schema (§18.1).

Fields

table: String

The table whose declaration changed.

FileColumnRepeated

A column is declared a file reference twice (E2).

Fields

table: String

The declared table.

column: String

The repeated column.

FileColumnGenerated

A file reference column is generated, so coven can’t write it (E2).

Fields

table: String

The declared table.

column: String

The generated column.

FilesForeignKey

An SQL foreign key references coven’s files table, which only declared file columns reference (§17.2, E2). key names the referencing columns and referenced table and columns as SQL.

Fields

table: String

The table holding the key.

key: String

The key, as SQL.

FileColumnForeignKey

A file reference column is also an SQL foreign key (E2).

Fields

table: String

The declared table.

column: String

The column.

FileColumn

A declared file column isn’t in the table (E2).

Fields

table: String

The declared table.

column: String

The missing column.

MissingTrigger

A trigger declared shared isn’t on the table (§9.4).

Fields

table: String

The declared table.

trigger: String

The missing trigger.

NoPrimaryKey

A synced table has no primary key (§9.2).

Fields

table: String

The declared table.

NullableKey

A primary-key column of a synced or device-local table permits NULL (§9.2).

Fields

table: String

The table.

column: String

The nullable key column.

KeyCollation

A synced key column compares text by a collation other than BINARY (§9.2, D3).

Fields

table: String

The table holding the key, unique constraint or foreign key.

column: String

The column, or for an expression term the unique index naming it.

collation: String

The column’s or index term’s collation.

GeneratedPrimaryKey

SQLite chooses the primary key itself (§9.2).

Fields

table: String

The declared table.

IndependentKeyNotUuid

An independent key has no text-affinity column to hold its UUID (§9.2).

Fields

table: String

The declared table.

KeyColumns

Declared key columns do not match the table’s primary key (E2).

Fields

table: String

The declared table.

GeneratedForeignKey

A foreign key includes a generated column (§9.1).

Fields

table: String

The synced or local table.

column: String

The generated referencing column.

ImpossibleAction

SET NULL would put NULL in a NOT NULL column (§9.1).

Fields

table: String

The synced or local table.

column: String

The non-null referencing column.

PrimaryKeyAction

SET NULL acts on a primary-key column (§9.1).

Fields

table: String

The declared table.

column: String

The primary-key column.

AudienceColumn

The audience root column is nullable, is not text, or is generated (§15, E2).

Fields

table: String

The declared table.

column: String

The audience column.

AudienceForeignKeyColumns

The audience foreign key spans more than one column (§15.1).

Fields

table: String

The declared table.

AudienceForeignKeyTarget

The audience foreign key does not point into a synced table (§15.1).

Fields

table: String

The declared table.

column: String

The audience foreign-key column.

AudienceForeignKeyAction

The audience foreign key uses SET NULL (§15.1).

Fields

table: String

The declared table.

column: String

The audience foreign-key column.

AudienceCycle

Following audience foreign keys forms a loop (§15.1).

Fields

table: String

The table from which the cycle was reached.

AudienceConstraint

A unique constraint or shared key spans audiences (§15.2).

Fields

table: String

The declared table.

constraint: String

The primary key or unique index.

SharedTriggerGuard

A shared trigger lacks WHEN NOT coven_applying() (§9.4).

Fields

table: String

The declared table.

trigger: String

The shared trigger.

TriggerTiming

A trigger on coven_files, coven_pins, coven_pin_requests, coven_moves, coven_upload_queue, coven_sync_status or coven_retry_effect runs before the change, where it could skip or refuse coven’s own (§9.4).

Fields

trigger: String

The trigger.

table: String

The table of coven’s it follows.

Trait Implementations

impl Clone for SchemaError

fn clone(&self) -> SchemaError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SchemaError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for SchemaError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for SchemaError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<SchemaError> for DbError

fn from(source: SchemaError) -> DbError

Converts to this type from the input type.

impl PartialEq for SchemaError

fn eq(&self, other: &SchemaError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for SchemaError

impl StructuralPartialEq for SchemaError