rustyroad 1.8.5

Rusty Road is a framework written in Rust that is based on Ruby on Rails. It is designed to provide the familiar conventions and ease of use of Ruby on Rails, while also taking advantage of the performance and efficiency of Rust.
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//! Constraint parts of the introspected model.

/// A foreign key from one or more local columns to a referenced table.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ForeignKey {
    pub name: String,
    pub columns: Vec<String>,
    pub foreign_table: String,
    pub foreign_columns: Vec<String>,
    pub on_delete: Option<String>,
    pub on_update: Option<String>,
}

/// A unique constraint.
/// Introspection retains immediate constraints, e.g. a nondeferrable email key.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Unique {
    pub name: String,
    pub columns: Vec<String>,
}

/// A non-constraint index.
/// Only valid, ready, immediate, unconditional plain-column indexes are represented.
/// For example, an index on `email INCLUDE (name)` has `columns == ["email"]`.
/// Partial/expression indexes are omitted by introspection, not treated as plain keys.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Index {
    pub name: String,
    pub columns: Vec<String>,
    pub unique: bool,
}