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Module: Ballast::Concerns::Common
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<span class="title">Common</span>
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<div id="content"><h1>Module: Ballast::Concerns::Common
</h1>
<dl class="box">
<dt class="r1 last">Defined in:</dt>
<dd class="r1 last">lib/ballast/concerns/common.rb</dd>
</dl>
<div class="clear"></div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>A concern to handle common tasks in an application.</p>
</div>
</div>
<div class="tags">
</div>
<h2>
Instance Method Summary
<small>(<a href="#" class="summary_toggle">collapse</a>)</small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#authenticate_user-instance_method" title="#authenticate_user (instance method)">- (Object) <strong>authenticate_user</strong>(area = nil, title = nil, message = nil, &authenticator) </a>
</span>
<span class="summary_desc"><div class='inline'><p>Authenticates a user via HTTP, handling the error if the authentication failed.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#format_long_date-instance_method" title="#format_long_date (instance method)">- (Object) <strong>format_long_date</strong>(date, separator = "•", format = "%I:%M%p %- %b %o, %Y (%:Z)") </a>
</span>
<span class="summary_desc"><div class='inline'><p>Formats a long date.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#format_short_amount-instance_method" title="#format_short_amount (instance method)">- (String) <strong>format_short_amount</strong>(amount, suffix = "") </a>
</span>
<span class="summary_desc"><div class='inline'><p>Formats a short amount of time (less than one hour).</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#format_short_duration-instance_method" title="#format_short_duration (instance method)">- (String) <strong>format_short_duration</strong>(date, reference = nil, suffix = "") </a>
</span>
<span class="summary_desc"><div class='inline'><p>Formats a relative date using abbreviation or short formats.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#perform_operation-instance_method" title="#perform_operation (instance method)">- (Operation) <strong>perform_operation</strong>(klass, owner = nil, **kwargs) </a>
</span>
<span class="summary_desc"><div class='inline'><p>Performs an operation, using itself as owner by default.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#sending_data%3F-instance_method" title="#sending_data? (instance method)">- (Boolean) <strong>sending_data?</strong> </a>
</span>
<span class="summary_desc"><div class='inline'><p>Checks if the user is sending any data.</p>
</div></span>
</li>
</ul>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="authenticate_user-instance_method">
- (<tt>Object</tt>) <strong>authenticate_user</strong>(area = nil, title = nil, message = nil, &authenticator)
</h3><div class="docstring">
<div class="discussion">
<p>Authenticates a user via HTTP, handling the error if the authentication failed.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>area</span>
<span class='type'>(<tt>String</tt>)</span>
<em class="default">(defaults to: <tt>nil</tt>)</em>
—
<div class='inline'><p>The name of the area.</p>
</div>
</li>
<li>
<span class='name'>title</span>
<span class='type'>(<tt>String</tt>)</span>
<em class="default">(defaults to: <tt>nil</tt>)</em>
—
<div class='inline'><p>A title for authentication errors.</p>
</div>
</li>
<li>
<span class='name'>message</span>
<span class='type'>(<tt>String</tt>)</span>
<em class="default">(defaults to: <tt>nil</tt>)</em>
—
<div class='inline'><p>A message for authentication errors.</p>
</div>
</li>
<li>
<span class='name'>authenticator</span>
<span class='type'>(<tt>Proc</tt>)</span>
—
<div class='inline'><p>A block to verify if authentication is valid.</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/ballast/concerns/common.rb', line 81</span>
<span class='kw'>def</span> <span class='id identifier rubyid_authenticate_user'>authenticate_user</span><span class='lparen'>(</span><span class='id identifier rubyid_area'>area</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='comma'>,</span> <span class='id identifier rubyid_title'>title</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='comma'>,</span> <span class='id identifier rubyid_message'>message</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='comma'>,</span> <span class='op'>&</span><span class='id identifier rubyid_authenticator'>authenticator</span><span class='rparen'>)</span>
<span class='id identifier rubyid_area'>area</span> <span class='op'>||=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>Private Area</span><span class='tstring_end'>"</span></span>
<span class='id identifier rubyid_title'>title</span> <span class='op'>||=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>Authentication required.</span><span class='tstring_end'>"</span></span>
<span class='id identifier rubyid_message'>message</span> <span class='op'>||=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>To view this resource you have to authenticate.</span><span class='tstring_end'>"</span></span>
<span class='id identifier rubyid_authenticated'>authenticated</span> <span class='op'>=</span> <span class='id identifier rubyid_authenticate_with_http_basic'>authenticate_with_http_basic</span> <span class='lbrace'>{</span> <span class='op'>|</span><span class='id identifier rubyid_username'>username</span><span class='comma'>,</span> <span class='id identifier rubyid_password'>password</span><span class='op'>|</span> <span class='id identifier rubyid_authenticator'>authenticator</span><span class='period'>.</span><span class='id identifier rubyid_call'>call</span><span class='lparen'>(</span><span class='id identifier rubyid_username'>username</span><span class='comma'>,</span> <span class='id identifier rubyid_password'>password</span><span class='rparen'>)</span> <span class='rbrace'>}</span>
<span class='kw'>if</span> <span class='op'>!</span><span class='id identifier rubyid_authenticated'>authenticated</span> <span class='kw'>then</span>
<span class='id identifier rubyid_headers'>headers</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>WWW-Authenticate</span><span class='tstring_end'>"</span></span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>Basic realm=\"</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_area'>area</span><span class='embexpr_end'>}</span><span class='tstring_content'>\"</span><span class='tstring_end'>"</span></span>
<span class='id identifier rubyid_handle_error'>handle_error</span><span class='lparen'>(</span><span class='lbrace'>{</span><span class='label'>status:</span> <span class='int'>401</span><span class='comma'>,</span> <span class='label'>title:</span> <span class='id identifier rubyid_title'>title</span><span class='comma'>,</span> <span class='label'>message:</span> <span class='id identifier rubyid_message'>message</span><span class='rbrace'>}</span><span class='rparen'>)</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="format_long_date-instance_method">
- (<tt>Object</tt>) <strong>format_long_date</strong>(date, separator = "•", format = "%I:%M%p %- %b %o, %Y (%:Z)")
</h3><div class="docstring">
<div class="discussion">
<p>Formats a long date.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>date</span>
<span class='type'>(<tt>DateTime</tt>)</span>
—
<div class='inline'><p>The date to format.</p>
</div>
</li>
<li>
<span class='name'>separator</span>
<span class='type'>(<tt>String</tt>)</span>
<em class="default">(defaults to: <tt>"•"</tt>)</em>
—
<div class='inline'><p>The separator between date and time.</p>
</div>
</li>
<li>
<span class='name'>format</span>
<span class='type'>(<tt>String</tt>)</span>
<em class="default">(defaults to: <tt>"%I:%M%p %- %b %o, %Y (%:Z)"</tt>)</em>
—
<div class='inline'><p>The format of the date, like in strftime. Use <code>%-</code> for the separator, <code>%o</code> for the ordinalized version of the day of the month
and <code>%:Z</code> for the zone name considering also DST.</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/ballast/concerns/common.rb', line 69</span>
<span class='kw'>def</span> <span class='id identifier rubyid_format_long_date'>format_long_date</span><span class='lparen'>(</span><span class='id identifier rubyid_date'>date</span><span class='comma'>,</span> <span class='id identifier rubyid_separator'>separator</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>•</span><span class='tstring_end'>"</span></span><span class='comma'>,</span> <span class='id identifier rubyid_format'>format</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>%I:%M%p %- %b %o, %Y (%:Z)</span><span class='tstring_end'>"</span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_tz'>tz</span> <span class='op'>=</span> <span class='const'>Time</span><span class='period'>.</span><span class='id identifier rubyid_zone'>zone</span>
<span class='id identifier rubyid_replacements'>replacements</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>%-</span><span class='tstring_end'>"</span></span> <span class='op'>=></span> <span class='id identifier rubyid_separator'>separator</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>%o</span><span class='tstring_end'>"</span></span> <span class='op'>=></span> <span class='id identifier rubyid_date'>date</span><span class='period'>.</span><span class='id identifier rubyid_day'>day</span><span class='period'>.</span><span class='id identifier rubyid_ordinalize'>ordinalize</span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>%:Z</span><span class='tstring_end'>"</span></span> <span class='op'>=></span> <span class='id identifier rubyid_tz'>tz</span><span class='period'>.</span><span class='id identifier rubyid_send'>send</span><span class='lparen'>(</span><span class='id identifier rubyid_tz'>tz</span><span class='period'>.</span><span class='id identifier rubyid_uses_dst?'>uses_dst?</span> <span class='op'>&&</span> <span class='id identifier rubyid_date'>date</span><span class='period'>.</span><span class='id identifier rubyid_dst?'>dst?</span> <span class='op'>?</span> <span class='symbol'>:dst_name</span> <span class='op'>:</span> <span class='symbol'>:name</span><span class='rparen'>)</span><span class='rbrace'>}</span>
<span class='id identifier rubyid_date'>date</span><span class='period'>.</span><span class='id identifier rubyid_strftime'>strftime</span><span class='lparen'>(</span><span class='id identifier rubyid_format'>format</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_gsub'>gsub</span><span class='lparen'>(</span><span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>%(-|o|(:Z))</span><span class='regexp_end'>/</span></span><span class='rparen'>)</span> <span class='lbrace'>{</span><span class='op'>|</span><span class='id identifier rubyid_r'>r</span><span class='op'>|</span> <span class='id identifier rubyid_replacements'>replacements</span><span class='period'>.</span><span class='id identifier rubyid_fetch'>fetch</span><span class='lparen'>(</span><span class='id identifier rubyid_r'>r</span><span class='comma'>,</span> <span class='id identifier rubyid_r'>r</span><span class='rparen'>)</span> <span class='rbrace'>}</span>
<span class='kw'>end</span></pre>
</td>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="format_short_amount-instance_method">
- (<tt>String</tt>) <strong>format_short_amount</strong>(amount, suffix = "")
</h3><div class="docstring">
<div class="discussion">
<p>Formats a short amount of time (less than one hour).</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>amount</span>
<span class='type'>(<tt>Fixnum</tt>)</span>
—
<div class='inline'><p>The amount to format.</p>
</div>
</li>
<li>
<span class='name'>suffix</span>
<span class='type'>(<tt>String</tt>)</span>
<em class="default">(defaults to: <tt>""</tt>)</em>
—
<div class='inline'><p>The suffix to add to the formatted amount.</p>
</div>
</li>
</ul>
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>String</tt>)</span>
—
<div class='inline'><p>The formatted amount.</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/ballast/concerns/common.rb', line 53</span>
<span class='kw'>def</span> <span class='id identifier rubyid_format_short_amount'>format_short_amount</span><span class='lparen'>(</span><span class='id identifier rubyid_amount'>amount</span><span class='comma'>,</span> <span class='id identifier rubyid_suffix'>suffix</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_end'>"</span></span><span class='rparen'>)</span>
<span class='kw'>if</span> <span class='id identifier rubyid_amount'>amount</span> <span class='op'><</span> <span class='int'>1</span><span class='period'>.</span><span class='id identifier rubyid_minute'>minute</span> <span class='kw'>then</span>
<span class='tstring'><span class='tstring_beg'>"</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_amount'>amount</span><span class='period'>.</span><span class='id identifier rubyid_floor'>floor</span><span class='embexpr_end'>}</span><span class='tstring_content'>s</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_suffix'>suffix</span><span class='embexpr_end'>}</span><span class='tstring_end'>"</span></span>
<span class='kw'>elsif</span> <span class='id identifier rubyid_amount'>amount</span> <span class='op'><</span> <span class='int'>1</span><span class='period'>.</span><span class='id identifier rubyid_hour'>hour</span> <span class='kw'>then</span>
<span class='tstring'><span class='tstring_beg'>"</span><span class='embexpr_beg'>#{</span><span class='lparen'>(</span><span class='id identifier rubyid_amount'>amount</span> <span class='op'>/</span> <span class='int'>60</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_floor'>floor</span><span class='embexpr_end'>}</span><span class='tstring_content'>m</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_suffix'>suffix</span><span class='embexpr_end'>}</span><span class='tstring_end'>"</span></span>
<span class='kw'>else</span>
<span class='tstring'><span class='tstring_beg'>"</span><span class='embexpr_beg'>#{</span><span class='lparen'>(</span><span class='id identifier rubyid_amount'>amount</span> <span class='op'>/</span> <span class='int'>3600</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_floor'>floor</span><span class='embexpr_end'>}</span><span class='tstring_content'>h</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_suffix'>suffix</span><span class='embexpr_end'>}</span><span class='tstring_end'>"</span></span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="format_short_duration-instance_method">
- (<tt>String</tt>) <strong>format_short_duration</strong>(date, reference = nil, suffix = "")
</h3><div class="docstring">
<div class="discussion">
<p>Formats a relative date using abbreviation or short formats.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>date</span>
<span class='type'>(<tt>DateTime</tt>)</span>
—
<div class='inline'><p>The date to format.</p>
</div>
</li>
<li>
<span class='name'>reference</span>
<span class='type'>(<tt>DateTime</tt>)</span>
<em class="default">(defaults to: <tt>nil</tt>)</em>
—
<div class='inline'><p>The reference date.</p>
</div>
</li>
<li>
<span class='name'>suffix</span>
<span class='type'>(<tt>String</tt>)</span>
<em class="default">(defaults to: <tt>""</tt>)</em>
—
<div class='inline'><p>The suffix to add to the formatted date.</p>
</div>
</li>
</ul>
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>String</tt>)</span>
—
<div class='inline'><p>The formatted date.</p>
</div>
</li>
</ul>
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<pre class="code"><span class="info file"># File 'lib/ballast/concerns/common.rb', line 33</span>
<span class='kw'>def</span> <span class='id identifier rubyid_format_short_duration'>format_short_duration</span><span class='lparen'>(</span><span class='id identifier rubyid_date'>date</span><span class='comma'>,</span> <span class='id identifier rubyid_reference'>reference</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='comma'>,</span> <span class='id identifier rubyid_suffix'>suffix</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_end'>"</span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_reference'>reference</span> <span class='op'>||=</span> <span class='const'>Time</span><span class='period'>.</span><span class='id identifier rubyid_now'>now</span>
<span class='id identifier rubyid_amount'>amount</span> <span class='op'>=</span> <span class='lparen'>(</span><span class='id identifier rubyid_reference'>reference</span><span class='period'>.</span><span class='id identifier rubyid_to_i'>to_i</span> <span class='op'>-</span> <span class='id identifier rubyid_date'>date</span><span class='period'>.</span><span class='id identifier rubyid_to_i'>to_i</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_to_i'>to_i</span>
<span class='kw'>if</span> <span class='id identifier rubyid_amount'>amount</span> <span class='op'><=</span> <span class='int'>0</span> <span class='kw'>then</span>
<span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>now</span><span class='tstring_end'>"</span></span>
<span class='kw'>elsif</span> <span class='id identifier rubyid_amount'>amount</span> <span class='op'><</span> <span class='int'>1</span><span class='period'>.</span><span class='id identifier rubyid_day'>day</span> <span class='kw'>then</span>
<span class='id identifier rubyid_format_short_amount'>format_short_amount</span><span class='lparen'>(</span><span class='id identifier rubyid_amount'>amount</span><span class='comma'>,</span> <span class='id identifier rubyid_suffix'>suffix</span><span class='rparen'>)</span>
<span class='kw'>elsif</span> <span class='id identifier rubyid_amount'>amount</span> <span class='op'><</span> <span class='int'>1</span><span class='period'>.</span><span class='id identifier rubyid_year'>year</span> <span class='kw'>then</span>
<span class='id identifier rubyid_date'>date</span><span class='period'>.</span><span class='id identifier rubyid_strftime'>strftime</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>%b %d</span><span class='tstring_end'>"</span></span><span class='rparen'>)</span>
<span class='kw'>else</span>
<span class='id identifier rubyid_date'>date</span><span class='period'>.</span><span class='id identifier rubyid_strftime'>strftime</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>%b %d %Y</span><span class='tstring_end'>"</span></span><span class='rparen'>)</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="perform_operation-instance_method">
- (<tt><span class='object_link'><a href="../Operation.html" title="Ballast::Operation (class)">Operation</a></span></tt>) <strong>perform_operation</strong>(klass, owner = nil, **kwargs)
</h3><div class="docstring">
<div class="discussion">
<p>Performs an operation, using itself as owner by default.</p>
</div>
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<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>klass</span>
<span class='type'>(<tt>Class</tt>)</span>
—
<div class='inline'><p>The operation to perform.</p>
</div>
</li>
<li>
<span class='name'>owner</span>
<span class='type'>(<tt>Object</tt>)</span>
<em class="default">(defaults to: <tt>nil</tt>)</em>
—
<div class='inline'><p>The owner to use. By default it uses itself.</p>
</div>
</li>
<li>
<span class='name'>kwargs</span>
<span class='type'>(<tt>Hash</tt>)</span>
—
<div class='inline'><p>The arguments for performing.</p>
</div>
</li>
</ul>
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt><span class='object_link'><a href="../Operation.html" title="Ballast::Operation (class)">Operation</a></span></tt>)</span>
—
<div class='inline'><p>The performed operation</p>
</div>
</li>
</ul>
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<pre class="lines">
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<td>
<pre class="code"><span class="info file"># File 'lib/ballast/concerns/common.rb', line 23</span>
<span class='kw'>def</span> <span class='id identifier rubyid_perform_operation'>perform_operation</span><span class='lparen'>(</span><span class='id identifier rubyid_klass'>klass</span><span class='comma'>,</span> <span class='id identifier rubyid_owner'>owner</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='comma'>,</span> <span class='op'>**</span><span class='id identifier rubyid_kwargs'>kwargs</span><span class='rparen'>)</span>
<span class='ivar'>@operation</span> <span class='op'>=</span> <span class='id identifier rubyid_klass'>klass</span><span class='period'>.</span><span class='id identifier rubyid_perform'>perform</span><span class='lparen'>(</span><span class='id identifier rubyid_owner'>owner</span> <span class='op'>||</span> <span class='kw'>self</span><span class='comma'>,</span> <span class='op'>**</span><span class='id identifier rubyid_kwargs'>kwargs</span><span class='rparen'>)</span>
<span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="sending_data?-instance_method">
- (<tt>Boolean</tt>) <strong>sending_data?</strong>
</h3><div class="docstring">
<div class="discussion">
<p>Checks if the user is sending any data.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
—
<div class='inline'><p><code>true</code> if the user is sending data, <code>false</code> otherwise.</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="lines">
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<pre class="code"><span class="info file"># File 'lib/ballast/concerns/common.rb', line 13</span>
<span class='kw'>def</span> <span class='id identifier rubyid_sending_data?'>sending_data?</span>
<span class='id identifier rubyid_request'>request</span><span class='period'>.</span><span class='id identifier rubyid_post?'>post?</span> <span class='op'>||</span> <span class='id identifier rubyid_request'>request</span><span class='period'>.</span><span class='id identifier rubyid_put?'>put?</span>
<span class='kw'>end</span></pre>
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