Struct ArrayValidator 

pub struct ArrayValidator {

    pub comment: String,
    pub contains: Vec<Validator>,
    pub items: Box<Validator>,
    pub prefix: Vec<Validator>,
    pub max_len: u32,
    pub min_len: u32,
    pub in_list: Vec<Vec<Value>>,
    pub nin_list: Vec<Vec<Value>>,
    pub unique: bool,
    pub query: bool,
    pub array: bool,
    pub contains_ok: bool,
    pub unique_ok: bool,
    pub size: bool,
}

Validator for arrays.

This validator type will only pass array values. Validation passes if:

• If the in list is not empty, the array must be among the arrays in the list.
• The array must not be among the arrays in the nin list.
• The arrays’s length is less than or equal to the value in max_len.
• The arrays’s length is greater than or equal to the value in min_len.
• If unique is true, the array items are all unique.
• For each validator in the contains list, at least one item in the array passes.
• Each item in the array is checked with a validator at the same index in the prefix array. All validators must pass. If there is no validator at the same index, the validator in items must pass. If a validator is not used, it passes automatially.

Defaults

Fields that aren’t specified for the validator use their defaults instead. The defaults for each field are:

• comment: “”
• contains: empty
• items: Validator::Any
• prefix: empty
• max_len: u32::MAX
• min_len: u32::MIN
• in_list: empty
• nin_list: empty
• unique: false
• query: false
• array: false
• contains_ok: false
• unique_ok: false
• size: false

Query Checking

Queries for arrays are only allowed to use non-default values for each field if the corresponding query permission is set in the schema’s validator:

• query: in and nin lists
• array: prefix and items
• contains_ok: contains
• unique_ok: unique
• size: max_len and min_len

In addition, sub-validators in the query are matched against the schema’s sub-validators:

• Each validator in contains is checked against all of the schema’s prefix validators, as well as its items validator.
• The items validator is checked against the schema’s `items’ validator
• The prefix validators are checked against the schema’s prefix validators. Unmatched query validators are checked against the schema’s items validator.

Fields

comment: String

An optional comment explaining the validator.

contains: Vec<Validator>

For each validator in this array, at least one item in the array must pass the validator.

items: Box<Validator>

A validator that each item in the array must pass, unless it is instead checked by prefix.

prefix: Vec<Validator>

An array of validators, which are matched up against the items in the array. Unmatched validators automatically pass, while unmatched items are checked against the items Validator.

max_len: u32

The maximum allowed number of items in the array.

min_len: u32

The minimum allowed number of items in the array.

in_list: Vec<Vec<Value>>

A vector of specific allowed values, stored under the in field. If empty, this vector is not checked against.

nin_list: Vec<Vec<Value>>

A vector of specific unallowed values, stored under the nin field.

unique: bool

If set, all items in the array must be unique.

query: bool

If true, queries against matching spots may have values in the in or nin lists.

array: bool

If true, queries against matching spots may use items and prefix.

contains_ok: bool

If true, queries against matching spots may use contains.

unique_ok: bool

If true, queries against matching spots may use unique.

size: bool

If true, queries against matching spots may use max_len and min_len.

Implementations

impl ArrayValidator

pub fn new() -> Self

Make a new validator with the default configuration.

pub fn comment(self, comment: impl Into<String>) -> Self

Set a comment for the validator.

pub fn contains_add(self, validator: Validator) -> Self

Extend the contains list with another validator

pub fn items(self, items: Validator) -> Self

Set the items validator.

pub fn prefix_add(self, prefix: Validator) -> Self

Extend the prefix list with another validator

pub fn max_len(self, max_len: u32) -> Self

Set the maximum number of allowed bytes.

pub fn min_len(self, min_len: u32) -> Self

Set the minimum number of allowed bytes.

pub fn in_add(self, add: impl Into<Vec<Value>>) -> Self

Add a value to the in list.

pub fn nin_add(self, add: impl Into<Vec<Value>>) -> Self

Add a value to the nin list.

pub fn unique(self, unique: bool) -> Self

Set whether the items in the array must be unique.

pub fn query(self, query: bool) -> Self

Set whether or not queries can use the in and nin lists.

pub fn array(self, array: bool) -> Self

Set whether or not queries can use the items and prefix values.

pub fn contains_ok(self, contains_ok: bool) -> Self

Set whether or not queries can use the contains value.

pub fn unique_ok(self, unique_ok: bool) -> Self

Set whether or not queries can use the unique setting.

pub fn size(self, size: bool) -> Self

Set whether or not queries can use the max_len and min_len values.

pub fn build(self) -> Validator

Build this into a Validator enum.

Trait Implementations

impl Clone for ArrayValidator

fn clone(&self) -> ArrayValidator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ArrayValidator

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

Formats the value using the given formatter.

impl Default for ArrayValidator

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ArrayValidator

where ArrayValidator: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ArrayValidator

fn eq(&self, other: &ArrayValidator) -> 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 Serialize for ArrayValidator

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ArrayValidator