77 lines
2.6 KiB
Rust
77 lines
2.6 KiB
Rust
use interim_pgtypes::pg_attribute::PgAttribute;
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use serde::{Deserialize, Serialize};
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use strum::{EnumIter, EnumString};
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pub const RFC_3339_S: &str = "%Y-%m-%dT%H:%M:%S";
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/// Struct defining how a field's is displayed and how it accepts input in UI.
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#[derive(Clone, Debug, Deserialize, EnumIter, EnumString, PartialEq, Serialize, strum::Display)]
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#[serde(tag = "t", content = "c")]
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pub enum Presentation {
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Dropdown { allow_custom: bool },
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Text { input_mode: TextInputMode },
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Timestamp { format: String },
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Uuid {},
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}
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impl Presentation {
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/// Returns a SQL fragment for the default data type for creating or
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/// altering a backing column, such as "integer", or "timestamptz".
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pub fn attr_data_type_fragment(&self) -> String {
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match self {
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Self::Dropdown { .. } | Self::Text { .. } => "text".to_owned(),
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Self::Timestamp { .. } => "timestamptz".to_owned(),
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Self::Uuid { .. } => "uuid".to_owned(),
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}
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}
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/// Generate the default presentation based on an existing column's type.
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/// Returns None if no default presentation exists.
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pub fn default_from_attr(attr: &PgAttribute) -> Option<Self> {
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match attr.regtype.to_lowercase().as_str() {
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"text" => Some(Self::Text {
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input_mode: TextInputMode::MultiLine {},
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}),
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"timestamp" => Some(Self::Timestamp {
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format: RFC_3339_S.to_owned(),
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}),
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"uuid" => Some(Self::Uuid {}),
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_ => None,
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}
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}
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/// Bet the web component tag name to use for rendering a UI cell.
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pub fn cell_webc_tag(&self) -> String {
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match self {
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Self::Dropdown { .. } => "cell-dropdown".to_owned(),
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Self::Text { .. } => "cell-text".to_owned(),
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Self::Timestamp { .. } => "cell-timestamp".to_owned(),
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Self::Uuid {} => "cell-uuid".to_owned(),
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}
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}
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}
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impl Default for Presentation {
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/// Defaults to [`Self::Text`] as a reasonable fallback. The [`Default`]
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/// trait is implemented for convenience, but in the vast majority of cases
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/// the presentation value should be well defined and this should not be
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/// called directly.
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fn default() -> Self {
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Self::Text {
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input_mode: Default::default(),
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}
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}
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}
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#[derive(Clone, Debug, Deserialize, EnumString, EnumIter, PartialEq, Serialize, strum::Display)]
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#[serde(tag = "t", content = "c")]
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pub enum TextInputMode {
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SingleLine {},
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MultiLine {},
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}
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impl Default for TextInputMode {
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fn default() -> Self {
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Self::MultiLine {}
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}
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}
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