1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
use std::default::Default;
use errors::*;
use feed::{Attachment, Author, Feed};
use item::{Content, Item};
/// Feed Builder
///
/// This is used to programmatically build up a Feed object,
/// which can be serialized later into a JSON string
pub struct Builder(Feed);
impl Builder {
pub fn new() -> Builder {
Builder(Feed::default())
}
pub fn title<I: Into<String>>(mut self, t: I) -> Builder {
self.0.title = t.into();
self
}
pub fn home_page_url<I: Into<String>>(mut self, url: I) -> Builder {
self.0.home_page_url = Some(url.into());
self
}
pub fn feed_url<I: Into<String>>(mut self, url: I) -> Builder {
self.0.feed_url = Some(url.into());
self
}
pub fn description<I: Into<String>>(mut self, desc: I) -> Builder {
self.0.description = Some(desc.into());
self
}
pub fn user_comment<I: Into<String>>(mut self, cmt: I) -> Builder {
self.0.user_comment = Some(cmt.into());
self
}
pub fn next_url<I: Into<String>>(mut self, url: I) -> Builder {
self.0.next_url = Some(url.into());
self
}
pub fn icon<I: Into<String>>(mut self, url: I) -> Builder {
self.0.icon = Some(url.into());
self
}
pub fn favicon<I: Into<String>>(mut self, url: I) -> Builder {
self.0.favicon = Some(url.into());
self
}
pub fn author(mut self, author: Author) -> Builder {
self.0.author = Some(author);
self
}
pub fn expired(mut self) -> Builder {
self.0.expired = Some(true);
self
}
pub fn item(mut self, item: Item) -> Builder {
self.0.items.push(item);
self
}
pub fn build(self) -> Feed {
self.0
}
}
/// Builder object for an item in a feed
pub struct ItemBuilder {
pub id: Option<String>,
pub url: Option<String>,
pub external_url: Option<String>,
pub title: Option<String>,
pub content: Option<Content>,
pub summary: Option<String>,
pub image: Option<String>,
pub banner_image: Option<String>,
pub date_published: Option<String>,
pub date_modified: Option<String>,
pub author: Option<Author>,
pub tags: Option<Vec<String>>,
pub attachments: Option<Vec<Attachment>>,
}
impl ItemBuilder {
pub fn new() -> ItemBuilder {
ItemBuilder {
id: None,
url: None,
external_url: None,
title: None,
content: None,
summary: None,
image: None,
banner_image: None,
date_published: None,
date_modified: None,
author: None,
tags: None,
attachments: None,
}
}
pub fn title<I: Into<String>>(mut self, i: I) -> ItemBuilder {
self.title = Some(i.into());
self
}
pub fn image<I: Into<String>>(mut self, i: I) -> ItemBuilder {
self.image = Some(i.into());
self
}
pub fn id<I: Into<String>>(mut self, i: I) -> ItemBuilder {
self.id = Some(i.into());
self
}
pub fn url<I: Into<String>>(mut self, i: I) -> ItemBuilder {
self.url = Some(i.into());
self
}
pub fn external_url<I: Into<String>>(mut self, i: I) -> ItemBuilder {
self.external_url = Some(i.into());
self
}
pub fn date_modified<I: Into<String>>(mut self, i: I) -> ItemBuilder {
self.date_modified = Some(i.into());
self
}
pub fn date_published<I: Into<String>>(mut self, i: I) -> ItemBuilder {
self.date_published = Some(i.into());
self
}
pub fn tags(mut self, tags: Vec<String>) -> ItemBuilder {
self.tags = Some(tags);
self
}
pub fn author(mut self, who: Author) -> ItemBuilder {
self.author = Some(who);
self
}
pub fn content_html<I: Into<String>>(mut self, i: I) -> ItemBuilder {
match self.content {
Some(Content::Text(t)) => {
self.content = Some(Content::Both(i.into(), t));
}
_ => {
self.content = Some(Content::Html(i.into()));
}
}
self
}
pub fn content_text<I: Into<String>>(mut self, i: I) -> ItemBuilder {
match self.content {
Some(Content::Html(s)) => {
self.content = Some(Content::Both(s, i.into()));
}
_ => {
self.content = Some(Content::Text(i.into()));
}
}
self
}
pub fn build(self) -> Result<Item> {
if self.id.is_none() || self.content.is_none() {
return Err("missing field 'id' or 'content_*'".into());
}
Ok(Item {
id: self.id.unwrap(),
url: self.url,
external_url: self.external_url,
title: self.title,
content: self.content.unwrap(),
summary: self.summary,
image: self.image,
banner_image: self.banner_image,
date_published: self.date_published,
date_modified: self.date_modified,
author: self.author,
tags: self.tags,
attachments: self.attachments,
})
}
}
|
