fmt bytes to readable and update setupload logic to allow edits

1 files changed, 138 insertions, 0 deletions

diff --git a/system/item/upload.go b/system/item/upload.go
new file mode 100644
index 0000000..9253fcc
--- /dev/null
+++ b/system/item/upload.go
@@ -0,0 +1,138 @@
+package item
+
+import (
+	"fmt"
+
+	"github.com/ponzu-cms/ponzu/management/editor"
+)
+
+// FileUpload represents the file uploaded to the system
+type FileUpload struct {
+	Item
+
+	Name          string `json:"name"`
+	Path          string `json:"path"`
+	ContentLength int64  `json:"content_length"`
+	ContentType   string `json:"content_type"`
+}
+
+// String partially implements item.Identifiable and overrides Item's String()
+func (f *FileUpload) String() string { return f.Name }
+
+// MarshalEditor writes a buffer of html to edit a Post and partially implements editor.Editable
+func (f *FileUpload) MarshalEditor() ([]byte, error) {
+	view, err := editor.Form(f,
+		editor.Field{
+			View: func() []byte {
+				if f.Path == "" {
+					return nil
+				}
+
+				return []byte(`
+            <div class="input-field col s12">
+                <label class="active">` + f.Name + `</label>
+                <!-- Add your custom editor field view here. -->
+				<h4>` + f.Name + `</h4>
+
+				<img class="preview" src="` + f.Path + `"/>
+				<p>File information:</p>
+				<ul>
+					<li>Content-Length: ` + fmt.Sprintf("%s", FmtBytes(float64(f.ContentLength))) + `</li>
+					<li>Content-Type: ` + f.ContentType + `</li>
+				</ul>
+            </div>
+            `)
+			}(),
+		},
+		editor.Field{
+			View: editor.File("Path", f, map[string]string{
+				"label":       "File Upload",
+				"placeholder": "Upload the file here",
+			}),
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	open := []byte(`
+	<div class="card">
+		<div class="card-content">
+			<div class="card-title">File Uploads</div>
+		</div>
+		<form action="/admin/uploads" method="post">
+	`)
+	close := []byte(`</form></div>`)
+	script := []byte(`
+	<script>
+		$(function() {
+			// hide default fields & labels unnecessary for the config
+			var fields = $('.default-fields');
+			fields.css('position', 'relative');
+			fields.find('input:not([type=submit])').remove();
+			fields.find('label').remove();
+			fields.find('button').css({
+				position: 'absolute',
+				top: '-10px',
+				right: '0px'
+			});
+
+			var contentOnly = $('.content-only.__ponzu');
+			contentOnly.hide();
+			contentOnly.find('input, textarea, select').attr('name', '');
+
+			// adjust layout of td so save button is in same location as usual
+			fields.find('td').css('float', 'right');
+
+			// stop some fixed config settings from being modified
+			fields.find('input[name=client_secret]').attr('name', '');
+
+			// hide save, show delete
+			fields.find('.save-post').hide();
+			fields.find('.delete-post').show();
+		});
+	</script>
+	`)
+
+	view = append(open, view...)
+	view = append(view, close...)
+	view = append(view, script...)
+
+	return view, nil
+}
+
+func (f *FileUpload) Push() []string {
+	return []string{
+		"path",
+	}
+}
+
+// FmtBytes converts the numeric byte size value to the appropriate magnitude
+// size in KB, MB, GB, TB, PB, or EB.
+func FmtBytes(size float64) string {
+	unit := float64(1024)
+	BYTE := unit
+	KBYTE := BYTE * unit
+	MBYTE := KBYTE * unit
+	GBYTE := MBYTE * unit
+	TBYTE := GBYTE * unit
+	PBYTE := TBYTE * unit
+
+	switch {
+	case size < BYTE:
+		return fmt.Sprintf("%0.f B", size)
+	case size < KBYTE:
+		return fmt.Sprintf("%.1f KB", size/BYTE)
+	case size < MBYTE:
+		return fmt.Sprintf("%.1f MB", size/KBYTE)
+	case size < GBYTE:
+		return fmt.Sprintf("%.1f GB", size/MBYTE)
+	case size < TBYTE:
+		return fmt.Sprintf("%.1f TB", size/GBYTE)
+	case size < PBYTE:
+		return fmt.Sprintf("%.1f PB", size/TBYTE)
+	default:
+		return fmt.Sprintf("%0.f B", size)
+	}
+
+}