summaryrefslogtreecommitdiff
path: root/doc/development/newlines_styleguide.md
blob: 32aac2529a444b6529f3b497d4cdccc4bd1a3d28 (plain)
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
# Newlines styleguide

This style guide recommends best practices for newlines in Ruby code.

## Rule: separate code with newlines only to group together related logic

```ruby
# bad
def method
  issue = Issue.new

  issue.save
  
  render json: issue 
end
```

```ruby
# good
def method
  issue = Issue.new
  issue.save
  
  render json: issue 
end
```

## Rule: separate code and block with newlines

### Newline before block

```ruby
# bad
def method
  issue = Issue.new
  if issue.save
    render json: issue
  end
end
```

```ruby
# good
def method
  issue = Issue.new

  if issue.save
    render json: issue
  end
end
```

## Newline after block

```ruby
# bad
def method
  if issue.save
    issue.send_email
  end
  render json: issue
end
```

```ruby
# good
def method
  if issue.save
    issue.send_email
  end

  render json: issue
end
```

### Exception: no need for newline when code block starts or ends right inside another code block

```ruby
# bad
def method

  if issue

    if issue.valid?
      issue.save
    end

  end

end
```

```ruby
# good
def method
  if issue
    if issue.valid?
      issue.save
    end
  end
end
```