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file.js
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file.js
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"use strict";
const locreq = require("locreq")(__dirname);
const Promise = require("bluebird");
const File = locreq("lib/data-structures/file.js");
const FileManager = locreq("lib/core-services/file-manager.js");
module.exports = {
name: "file",
handles_large_data: true,
is_proper_value: function(context, params, value){
if (value === undefined){
return undefined;
}
if (value === null
|| value === ""
|| (value instanceof File)
|| (value.filename !== undefined && value.data instanceof Buffer)
){
return Promise.resolve();
} else {
let type;
if (value instanceof Array){
type = "<Array>. If you want to upload multiple files, use array field types.";
} else {
type = typeof data;
}
return Promise.reject(`Wrong file data format. Should be Sealious.File, but received ${type}`);
}
},
encode: function(context, params, value_in_code){
// it doesn't check what the value_in_code really is
if (value_in_code){
return FileManager.save_file(value_in_code);
} else {
return null;
}
},
decode: function(context, params, value_in_database){
if (value_in_database){
return Promise.resolve(new File.Reference(value_in_database.id, value_in_database.filename));
} else if (params.no_file_value){
return params.no_file_value;
} else {
return undefined;
}
},
format: function(context, params, decoded_value, format){
if (format === "url"){
return `/api/v1/uploaded-files/${decoded_value.id}/${decoded_value.filename}`;
} else if (format === "url-with-filename"){
if (decoded_value === undefined){
return {
url: params.no_file_value || "",
filename: null,
empty: true,
};
} else {
return {
url: `/api/v1/uploaded-files/${decoded_value.id}/${decoded_value.filename}`,
filename: decoded_value.filename,
empty: false,
};
}
} else {
return decoded_value;
}
},
};

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file.js (1 KB)

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