field_type.single_reference.js
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field_type.single_reference.js
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	var Sealious = require("sealious");

	module.exports = new Sealious.FieldType({
	name: "single_reference",
	is_proper_value: function(accept, reject, context, params, new_value){
	var resource_type = new Sealious.ResourceType(params.resource_type);
	var resource_id;
	if (typeof new_value === "string"){
	resource_id = new_value;
	} else if (typeof new_value === "object"){
	resource_id = new_value.id;
	}
	var action = new Sealious.Action(["resources", resource_type.name, resource_id], "show");
	action.perform(context).then(accept)
	.catch({type: "not_found"}, (error) => reject(error));
	},
	encode: function(context, params, value_in_code){
	var resource_id;
	if (typeof value_in_code === "string"){
	resource_id = value_in_code;
	} else if (typeof value_in_code === "object"){
	resource_id = value_in_code.id;
	}
	return resource_id;
	},
	format: function(context, params, decoded_value, format_params){
	if (format_params === "expand"){
	if (decoded_value === undefined){
	return undefined;
	}
	var resource_type = new Sealious.ResourceType(params.resource_type);
	var resource_id = decoded_value;
	var action = new Sealious.Action(["resources", resource_type.name, resource_id], "show");
	return action.perform(context);
	} else {
	return decoded_value;
	}
	}
	})