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feature: saved exports

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initial - not feature complete
This commit is contained in:
Gary Sharp
2025-02-09 17:14:04 +11:00
parent 2fce645066
commit ac24055365
35 changed files with 2244 additions and 156 deletions
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Disco.Services/Exporting/Exporter.cs
+11 -16
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@@ -16,35 +16,32 @@ namespace Disco.Services.Exporting
{
public static class Exporter
{
public static ExportResult Export<T, R>(IExport<T, R> context, DiscoDataContext database, IScheduledTaskStatus status)
public static ExportResult Export<T, R>(IExport<T, R> export, DiscoDataContext database, IScheduledTaskStatus status)
where T : IExportOptions, new()
where R : IExportRecord
{
MemoryStream stream;
string mimeType;
status.UpdateStatus(1, $"Exporting {context.Name}", "Gathering data");
status.UpdateStatus(1, $"Exporting {export.Name}", "Gathering data");
var records = context.BuildRecords(database, status);
var records = export.BuildRecords(database, status);
status.UpdateStatus(70, "Building metadata");
var metadata = context.BuildMetadata(database, records, status);
var metadata = export.BuildMetadata(database, records, status);
if (metadata.Count == 0)
throw new ArgumentException("At least one export field must be specified", nameof(context.Options));
throw new ArgumentException("At least one export field must be specified", nameof(export.Options));
var filenameBuilder = new StringBuilder();
filenameBuilder.Append(context.SuggestedFilenamePrefix);
if (context.TimestampSuffix)
{
filenameBuilder.Append('-');
filenameBuilder.Append(status.StartedTimestamp.Value.ToString("yyyyMMdd-HHmmss"));
}
filenameBuilder.Append(export.FilenamePrefix);
filenameBuilder.Append('-');
filenameBuilder.Append(status.StartedTimestamp.Value.ToString("yyyyMMdd-HHmmss"));
status.UpdateStatus(80, $"Rendering {records.Count} records for export");
switch (context.Options.Format)
switch (export.Options.Format)
{
case ExportFormat.Csv:
filenameBuilder.Append(".csv");
@@ -54,10 +51,10 @@ namespace Disco.Services.Exporting
case ExportFormat.Xlsx:
filenameBuilder.Append(".xlsx");
mimeType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
stream = WriteXlsx(context.ExcelWorksheetName, context.ExcelTableName, metadata, records);
stream = WriteXlsx(export.ExcelWorksheetName, export.ExcelTableName, metadata, records);
break;
default:
throw new NotSupportedException($"Unsupported export format: {context.Options.Format}");
throw new NotSupportedException($"Unsupported export format: {export.Options.Format}");
}
return new ExportResult()
@@ -99,7 +96,6 @@ namespace Disco.Services.Exporting
stream.Position = 0;
return stream;
}
private static MemoryStream WriteXlsx<T>(string worksheetName, string tableName, List<ExportMetadataField<T>> metadata, List<T> records) where T : IExportRecord
{
var stream = new MemoryStream();
@@ -151,7 +147,6 @@ namespace Disco.Services.Exporting
metadata.Add(columnName, valueAccessor, csvValueEncoder);
}
public static void Add<T, V>(this ExportMetadata<T> metadata, string columnName, Func<T, V> valueAccessor, Func<object, string> csvValueEncoder = null)
where T : IExportRecord
{