Enum DeclarationErrorKind 

#[non_exhaustive]
pub enum DeclarationErrorKind {
    MissingDb,
    MissingAuthModels {
        models: Vec<&'static str>,
    },
    ShellAssetsWithoutBundle,
    FileFieldWithoutUploader {
        field: String,
    },
    InvalidSegment {
        item: &'static str,
        segment: String,
        fault: SegmentFault,
    },
    PrefixOverlapsRuntime {
        prefix: String,
    },
    PrefixOverlapsPanel {
        other: String,
    },
    ServeDirWithoutCatchAll {
        path: String,
    },
    ServeDirTwice {
        path: String,
    },
    ServeDirTaken {
        path: String,
        panel: String,
    },
    SecondHome,
    DuplicateResource,
    DuplicatePage,
    NotMounted,
    ReservedSlug {
        slug: String,
    },
    DuplicateSlug {
        slug: String,
    },
    DuplicateAction {
        name: &'static str,
    },
    ActionInput {
        action: &'static str,
        fault: ActionInputFault,
    },
    SignUp(SignUpFault),
    DuplicateRelation,
    UnregisteredRelation,
    UnregisteredOptionSource {
        field: String,
        source: &'static str,
    },
    UnregisteredLabelSource {
        column: String,
        source: &'static str,
    },
    TraversalLens {
        steps: usize,
    },
    UnresolvedLens {
        model: &'static str,
        steps: Vec<usize>,
    },
    Unbound {
        item: &'static str,
    },
    TenancyColumnNotAField,
    TenancyViaOwnColumn,
    TenancyViaWithoutBelongsTo,
    UnguardedForeignKey {
        relation: String,
        keys: Vec<String>,
    },
    NoColumns,
    ZeroPageSize,
    DuplicateColumn {
        name: String,
    },
    DuplicateFilter {
        name: String,
    },
    DottedFilterName {
        name: String,
    },
    UnparsedFilterOption {
        filter: String,
        value: String,
    },
    DuplicateField {
        name: String,
    },
    DisabledWithoutValue {
        field: String,
    },
    RepeaterLeafModifier {
        field: String,
        leaf: String,
    },
    UnpostedDefault {
        field: String,
        value: String,
    },
    UnplacedWatchedField {
        field: String,
    },
    HiddenWatchedField {
        field: String,
    },
    UnpostedConditionValue {
        field: String,
        value: String,
    },
    MisdeclaredDependentChoice {
        field: String,
    },
    MultipleDependentChoice {
        field: String,
    },
    UnplacedParentField {
        field: String,
        parent: String,
    },
    RequiredConditionalField {
        field: String,
    },
    CreateWithoutForm,
    MissingControl {
        field: String,
        key: String,
    },
    FormClaimsTenantColumn {
        field: String,
        column: String,
    },
    EmptyChoice {
        field: String,
    },
    CompositeKeyChoice {
        field: String,
    },
    UniqueWithoutIndex {
        field: String,
    },
    OptionalUnique {
        field: String,
    },
    CreateColumnsNameTenant {
        column: String,
    },
    UnwrittenColumn {
        column: String,
    },
    ManyToMany {
        field: String,
        fault: ManyToManyFault,
    },
}

What is wrong with a declaration.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MissingDb

The router holds no toasty::Db.

MissingAuthModels

Auth is on, but the Db does not register the shipped models it needs.

Fields

models: Vec<&'static str>

The unregistered models.

ShellAssetsWithoutBundle

Panel::shell_assets is set, but the router has no asset bundle.

FileFieldWithoutUploader

A form declares a file field, but the panel installs no Uploader to store its bytes.

Fields

field: String

The file field’s name.

InvalidSegment

A path segment the panel routes cannot be a literal URL segment.

Fields

item: &'static str

What names the segment: panel prefix, ResourceDef::slug or PageDef::slug.

segment: String

The refused segment.

fault: SegmentFault

Why it is refused.

PrefixOverlapsRuntime

The prefix overlaps Topcoat’s runtime endpoints.

Fields

prefix: String

The panel’s prefix.

PrefixOverlapsPanel

The prefix overlaps another panel’s.

Fields

other: String

The other panel’s prefix.

ServeDirWithoutCatchAll

A Panel::serve_dir pattern that does not end in a catch-all.

Fields

path: String

The pattern.

ServeDirTwice

The panel serves the same directory pattern twice.

Fields

path: String

The pattern.

ServeDirTaken

Another panel already serves the directory pattern.

Fields

path: String

The pattern.

panel: String

The serving panel’s prefix.

SecondHome

A second Panel::home page.

DuplicateResource

The resource is registered on the panel twice.

DuplicatePage

The page is registered on the panel twice, Panel::home included.

NotMounted

The resource is not mounted on the context’s panel.

ReservedSlug

A slug naming a route the panel serves itself.

Fields

slug: String

The slug.

DuplicateSlug

A slug another resource or page already mounts at.

Fields

slug: String

The slug.

DuplicateAction

Two actions share a NAME.

Fields

name: &'static str

The shared name.

ActionInput

An action’s input cannot be served.

Fields

action: &'static str

The action’s NAME.

fault: ActionInputFault

What is wrong with it.

SignUp(SignUpFault)

The panel’s sign-up page cannot be served.

DuplicateRelation

Two relations to the same resource.

UnregisteredRelation

A relation to a resource the panel does not register.

UnregisteredOptionSource

A relationship field, or a relationship filter, whose options come from a resource the panel does not register.

Fields

field: String

The field.

source: &'static str

The option source’s type.

UnregisteredLabelSource

A relation column labelling its records by a resource the panel does not register.

Fields

column: String

The column.

source: &'static str

The label source’s type.

TraversalLens

A lens with more than one step where a single field of the model is needed.

Fields

steps: usize

The lens’s step count.

UnresolvedLens

A multi-step lens that resolves to no single column.

Fields

model: &'static str

The lens’s model.

steps: Vec<usize>

The lens’s field indices, step by step.

Unbound

An embedded path or value its declaration never bound to the app schema.

Fields

item: &'static str

The path’s model, or the embedded value’s type.

TenancyColumnNotAField

A Tenancy::column lens that names no field of the model.

TenancyViaOwnColumn

A Tenancy::via lens that names one field of the model.

TenancyViaWithoutBelongsTo

A Tenancy::via lens whose first step is no belongs_to relation.

UnguardedForeignKey

A Tenancy::via resource whose form writes the parent’s foreign key other than through a relationship field over a tenant-scoped resource of the parent’s model.

Fields

relation: String

The belongs_to relation the lens steps through.

keys: Vec<String>

The foreign-key columns written another way.

NoColumns

A table with no column.

ZeroPageSize

Table::paginate(0).

DuplicateColumn

Two table columns share a name.

Fields

name: String

The shared name.

DuplicateFilter

Two table filters share a name.

Fields

name: String

The shared name.

DottedFilterName

A table filter’s name holds a ., which its URL parameters reserve for a part: f.<name>.<part>.

Fields

name: String

The name.

UnparsedFilterOption

A select filter option whose value the field’s type does not parse, so choosing it filters nothing.

Fields

filter: String

The filter’s name.

value: String

The option’s value.

DuplicateField

Two schema fields share a name.

Fields

name: String

The shared name.

DisabledWithoutValue

A field disabled on the create form, with no default and no blank answer: no create could fill it.

Fields

field: String

The disabled field.

RepeaterLeafModifier

A repeater’s item disables one of its row’s controls or gives it a default, which a row does not apply.

Fields

field: String

The repeater.

leaf: String

The control in its row.

UnpostedDefault

A field’s default is a value its control never posts: one its type does not parse, one not among a choice’s options, or a list or one value where the control posts the other.

Fields

field: String

The field.

value: String

The default, a list spelled ["a", "b"].

UnplacedWatchedField

A condition watches a field the schema does not place.

Fields

field: String

The watched field.

HiddenWatchedField

A condition watches a field that another condition hides while what it guards still shows.

Fields

field: String

The watched field.

UnpostedConditionValue

A condition names a value its watched field never posts: not one of a choice’s options, or neither true nor false for a toggle.

Fields

field: String

The watched field.

value: String

The value.

MisdeclaredDependentChoice

A dependent choice’s column belongs to another model than its relationship’s source, or the choice has no relationship.

Fields

field: String

The dependent choice.

MultipleDependentChoice

A dependent choice that takes several options, or that depends on one that does: a multiple choice’s key holds a list, which narrows nothing.

Fields

field: String

The dependent choice.

UnplacedParentField

A dependent choice depends on a field the schema does not place.

Fields

field: String

The dependent choice.

parent: String

The field it depends on.

RequiredConditionalField

A field a condition hides has no blank answer, so a submission hiding it cannot parse.

Fields

field: String

The field.

CreateWithoutForm

A resource whose policy allows create but that has no form.

MissingControl

A record-form field binding a key no control posts, after the form renders every field it does not place: a hand-written RecordForm::control that renders no control for it.

Fields

field: String

The record-form field.

key: String

The key it binds.

FormClaimsTenantColumn

A tenant-scoped resource’s record form claims the tenant column.

Fields

field: String

The record-form field.

column: String

The tenant column.

EmptyChoice

A choice field with neither options nor a relationship.

Fields

field: String

The field.

CompositeKeyChoice

A relationship field, or a relationship filter, over a model with a composite primary key.

Fields

field: String

The field, or the filter’s name.

UniqueWithoutIndex

A field marked unique over a column no unique index covers.

Fields

field: String

The field.

OptionalUnique

A unique field whose non-nullable column stores one value for every empty submission.

Fields

field: String

The field.

CreateColumnsNameTenant

create_column names the tenant column.

Fields

column: String

The tenant column.

UnwrittenColumn

A non-nullable column nothing writes on create.

Fields

column: String

The column.

ManyToMany

A many-to-many field or relation whose join model cannot link records.

Fields

field: String

The field, or the relation’s via field.

fault: ManyToManyFault

What is wrong.

Trait Implementations

impl Clone for DeclarationErrorKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeclarationErrorKind

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

Formats the value using the given formatter.

impl Display for DeclarationErrorKind

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

Formats the value using the given formatter.

impl Eq for DeclarationErrorKind

impl PartialEq for DeclarationErrorKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DeclarationErrorKind