Personal blog written from scratch using Node.js, Bootstrap, and MySQL. https://jrtechs.net
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const utils = require('../utils/utils.js');
const sql = require('../utils/sql');
const qs = require('querystring');
const Promise = require('promise');
/**
* @author Jeffery Russell 6-30-18
*/
/**
* Processes post requests from the addDownload form
* @param res
* @param postData
* @returns {*|Promise}
*/
var addDownloadPostData = function(res, postData)
{
return new Promise(function(resolve, reject)
{
var post = qs.parse(postData);
if(post.add_download)
{
console.log(post);
sql.addDownload(post.add_download_name, post.add_download_file).then(function()
{
resolve(postData);
});
}
else
{
resolve(postData);
}
});
};
/**
* Displays the addDownload form the the user
*
* @param res
* @param postData
* @returns {*|Promise}
*/
var addDownload = function(res, postData)
{
res.write("<div class=\"col-md-6\">");
return new Promise(function(resolve, reject)
{
addDownloadPostData(res, postData).then(function()
{
return utils.include(res, "./admin/addDownload.html");
}).then(function()
{
res.write("</div>");
resolve(postData);
}).catch(function(err)
{
console.log(err);
reject(err);
});
});
};
/**
* Handel form requests from the downloads table
*
* @param res
* @param postData
* @returns {*|Promise}
*/
var displayDownloadsPostData = function(res, postData)
{
return new Promise(function(resolve, reject)
{
var post = qs.parse(postData);
if(post.delete_download)
{
}
resolve(postData);
});
};
/**
* Renders a single download row in the downloads table
*
* @param result
* @param download
* @returns {*|Promise}
*/
var renderDownloadRow = function(result, download)
{
return new Promise(function(resolve, reject)
{
result.write("<tr>");
//download name
result.write("<td>" + download.name + "</td>");
//file name
result.write("<td>" + download.file + "</td>");
//download count
result.write("<td>" + download.download_count + "</td>");
//edit
result.write("<td><form action=\"/admin/\" method =\"post\" >\n" +
" <input type=\"submit\" name=\"submit\" value=\"Edit\"\n" +
" class=\"btn btn-secondary\"/>\n" +
"<input type='hidden' name='delete_download' value='" + download.download_id + "'/>"+
"</form></td>");
result.write("</tr>");
resolve();
});
};
/**
* Displays all the download information in a table
* @param res
* @param postData
* @returns {*|Promise}
*/
var displayDownloads = function(res, postData)
{
res.write("<div class=\"col-md-6\">");
return new Promise(function(resolve, reject)
{
displayDownloadsPostData(res, postData).then(function()
{
res.write("<div class='blogPost'>");
res.write("<h1 class=\"text-center\">Downloads</h1>");
res.write("<div class=\"\"><table class=\"table table-striped\">");
res.write("<thead class=\"thead-dark\"><tr>");
res.write("<td>Download Name</td><td>File</td><td>Download Count</td><td>Delete</td>");
res.write("</tr></thead><tbody>");
sql.getAllDownloads().then(function(downloads)
{
var downloadPromises = [];
downloads.forEach(function(download)
{
downloadPromises.push(new Promise(function(resolveDownload, reject)
{
renderDownloadRow(res, download).then(function()
{
resolveDownload();
}).catch(function(error)
{
reject(error);
})
}));
});
Promise.all(downloadPromises).then(function()
{
res.write("</tbody></table></div></div><br>");
res.write("</div>");
resolve(postData);
});
}).catch(function(error)
{
reject(error);
});
});
});
};
module.exports=
{
main: function(res, postData)
{
res.write("<div class=\"row\">");
return new Promise(function(resolve, reject)
{
addDownload(res, postData).then(function()
{
return displayDownloads(res, postData);
}).then(function()
{
res.write("</div>");
resolve(postData);
}).catch(function(err)
{
console.log(err);
reject(err);
})
});
}
};