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control-access.ts
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control-access.ts
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import {
Field,
Context,
AccessStrategy,
HybridField,
App,
ExtractStorage,
} from "../../../main";
import {
ExtractParams,
ExtractOutput,
HybridFieldParams,
} from "../../../chip-types/field";
type Params<T extends Field> = {
target_access_strategies: { [key in "show" | "edit"]: AccessStrategy };
value_when_not_allowed: ExtractOutput<T>;
};
export default class ControlAccess<T extends Field> extends HybridField<T> {
getTypeName = () => "control-access";
edit_strategy: AccessStrategy;
show_strategy: AccessStrategy;
value_when_not_allowed: ExtractOutput<T>;
app: App;
setParams(params: Params<T> & HybridFieldParams<T>) {
super.setParams(params);
this.edit_strategy = params.target_access_strategies.edit;
this.show_strategy = params.target_access_strategies.show;
this.value_when_not_allowed = params.value_when_not_allowed;
}
async isProperValue(
context: Context,
new_value: Parameters<T["isProperValue"]>[1],
old_value: Parameters<T["isProperValue"]>[2]
) {
if (!context.is_super) {
const result = await this.edit_strategy.check(context);
if (result && !result?.allowed) {
return Field.invalid(result.reason);
}
}
return this.virtual_field.isProperValue(context, new_value, old_value);
}
async decode(
context: Context,
value_in_db: ExtractStorage<T>,
old_value: ExtractOutput<T>,
format_params: ExtractParams<T>
) {
if (!context.is_super) {
const result = await this.show_strategy.check(context);
if (result && !result.allowed) {
value_in_db = await this.encode(
context,
this.value_when_not_allowed
);
}
}
const ret = await this.virtual_field.decode(
context,
value_in_db,
old_value,
format_params
);
return ret;
}
}

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