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publishing docs for 0.8.0
2019-12-11 20:40:10 +00:00
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<div class="main-content">
<h1 class="type-name">
<span class="kind">class</span> DB::DriverSpecs(DBAnyType)
</h1>
<ul class="superclass-hierarchy"><li class="superclass"><a href="../DB/DriverSpecs.html">DB::DriverSpecs(DBAnyType)</a></li><li class="superclass">Reference</li><li class="superclass">Object</li></ul>
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Overview
</h2>
<p>Helper class to ensure behaviour of custom drivers</p>
<pre><code><span class="k">require</span> <span class="s">&quot;db/spec&quot;</span>
<span class="t">DB</span><span class="t">::</span><span class="t">DriverSpecs</span>(<span class="t">DB</span><span class="t">::</span><span class="t">Any</span>).run <span class="k">do</span>
<span class="c"># How to connect to database</span>
connection_string <span class="s">&quot;scheme://database_url&quot;</span>
<span class="c"># Clean up database if needed using before/after callbacks</span>
before <span class="k">do</span>
<span class="c"># ...</span>
<span class="k">end</span>
after <span class="k">do</span>
<span class="c"># ...</span>
<span class="k">end</span>
<span class="c"># Sample values that will be stored, retrieved across many specs</span>
sample_value <span class="s">&quot;hello&quot;</span>, <span class="s">&quot;varchar(25)&quot;</span>, <span class="s">&quot;&#39;hello&#39;&quot;</span>
it <span class="s">&quot;custom spec with a db initialized&quot;</span> <span class="k">do</span> <span class="o">|</span>db<span class="o">|</span>
<span class="c"># assert something using *db*</span>
<span class="k">end</span>
<span class="c"># Configure the appropiate syntax for different commands needed to run the specs</span>
binding_syntax <span class="k">do</span> <span class="o">|</span>index<span class="o">|</span>
<span class="s">&quot;?&quot;</span>
<span class="k">end</span>
create_table_1column_syntax <span class="k">do</span> <span class="o">|</span>table_name, col1<span class="o">|</span>
<span class="s">&quot;create table </span><span class="i">#{</span>table_name<span class="i">}</span><span class="s"> (</span><span class="i">#{</span>col1.name<span class="i">}</span><span class="s"> </span><span class="i">#{</span>col1.sql_type<span class="i">}</span><span class="s"> </span><span class="i">#{</span>col1.null ? <span class="s">&quot;NULL&quot;</span> : <span class="s">&quot;NOT NULL&quot;</span><span class="i">}</span><span class="s">)&quot;</span>
<span class="k">end</span>
<span class="k">end</span></code></pre>
<p>The following methods needs to be called to configure the appropiate syntax
for different commands and allow all the specs to run: <code><a href="../DB/DriverSpecs.html#binding_syntax(&binding_syntax:Proc(Int32,String))-instance-method">#binding_syntax</a></code>, <code><a href="../DB/DriverSpecs.html#create_table_1column_syntax(&create_table_1column_syntax:Proc(String,ColumnDef,String))-instance-method">#create_table_1column_syntax</a></code>,
<code><a href="../DB/DriverSpecs.html#create_table_2columns_syntax(&create_table_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method">#create_table_2columns_syntax</a></code>, <code><a href="../DB/DriverSpecs.html#select_1column_syntax(&select_1column_syntax:Proc(String,ColumnDef,String))-instance-method">#select_1column_syntax</a></code>, <code><a href="../DB/DriverSpecs.html#select_2columns_syntax(&select_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method">#select_2columns_syntax</a></code>, <code><a href="../DB/DriverSpecs.html#select_count_syntax(&select_count_syntax:Proc(String,String))-instance-method">#select_count_syntax</a></code>,
<code><a href="../DB/DriverSpecs.html#select_scalar_syntax(&select_scalar_syntax:Proc(String,String?,String))-instance-method">#select_scalar_syntax</a></code>, <code><a href="../DB/DriverSpecs.html#insert_1column_syntax(&insert_1column_syntax:Proc(String,ColumnDef,String,String))-instance-method">#insert_1column_syntax</a></code>, <code><a href="../DB/DriverSpecs.html#insert_2columns_syntax(&insert_2columns_syntax:Proc(String,ColumnDef,String,ColumnDef,String,String))-instance-method">#insert_2columns_syntax</a></code>, <code><a href="../DB/DriverSpecs.html#drop_table_if_exists_syntax(&drop_table_if_exists_syntax:Proc(String,String))-instance-method">#drop_table_if_exists_syntax</a></code>.</p>
<h2>
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Defined in:
</h2>
<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L51" target="_blank">
spec.cr
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<br/>
<h2>
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Class Method Summary
</h2>
<ul class="list-summary">
<li class="entry-summary">
<a href="#run(description=&quot;asadb&quot;,&)-class-method" class="signature"><strong>.run</strong>(description = <span class="s">&quot;as a db&quot;</span>, &)</a>
</li>
</ul>
<h2>
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Instance Method Summary
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<ul class="list-summary">
<li class="entry-summary">
<a href="#after(&after:-%3ENil)-instance-method" class="signature"><strong>#after</strong>(&after : -> Nil)</a>
</li>
<li class="entry-summary">
<a href="#before(&before:-%3ENil)-instance-method" class="signature"><strong>#before</strong>(&before : -> Nil)</a>
</li>
<li class="entry-summary">
<a href="#binding_syntax(&binding_syntax:Proc(Int32,String))-instance-method" class="signature"><strong>#binding_syntax</strong>(&binding_syntax : Proc(Int32, String))</a>
</li>
<li class="entry-summary">
<a href="#connection_string(connection_string:String)-instance-method" class="signature"><strong>#connection_string</strong>(connection_string : String)</a>
</li>
<li class="entry-summary">
<a href="#create_table_1column_syntax(&create_table_1column_syntax:Proc(String,ColumnDef,String))-instance-method" class="signature"><strong>#create_table_1column_syntax</strong>(&create_table_1column_syntax : Proc(String, ColumnDef, String))</a>
</li>
<li class="entry-summary">
<a href="#create_table_2columns_syntax(&create_table_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method" class="signature"><strong>#create_table_2columns_syntax</strong>(&create_table_2columns_syntax : Proc(String, ColumnDef, ColumnDef, String))</a>
</li>
<li class="entry-summary">
<a href="#drop_table_if_exists_syntax(&drop_table_if_exists_syntax:Proc(String,String))-instance-method" class="signature"><strong>#drop_table_if_exists_syntax</strong>(&drop_table_if_exists_syntax : Proc(String, String))</a>
</li>
<li class="entry-summary">
<a href="#encode_null(encode_null:String)-instance-method" class="signature"><strong>#encode_null</strong>(encode_null : String)</a>
</li>
<li class="entry-summary">
<a href="#insert_1column_syntax(&insert_1column_syntax:Proc(String,ColumnDef,String,String))-instance-method" class="signature"><strong>#insert_1column_syntax</strong>(&insert_1column_syntax : Proc(String, ColumnDef, String, String))</a>
</li>
<li class="entry-summary">
<a href="#insert_2columns_syntax(&insert_2columns_syntax:Proc(String,ColumnDef,String,ColumnDef,String,String))-instance-method" class="signature"><strong>#insert_2columns_syntax</strong>(&insert_2columns_syntax : Proc(String, ColumnDef, String, ColumnDef, String, String))</a>
</li>
<li class="entry-summary">
<a href="#it(description=&quot;assert&quot;,prepared=:default,file=__FILE__,line=__LINE__,end_line=__END_LINE__,&block:DB::Database-%3E)-instance-method" class="signature"><strong>#it</strong>(description = <span class="s">&quot;assert&quot;</span>, prepared = <span class="n">:default</span>, file = __FILE__, line = __LINE__, end_line = __END_LINE__, &block : DB::Database -> )</a>
</li>
<li class="entry-summary">
<a href="#its-instance-method" class="signature"><strong>#its</strong></a>
</li>
<li class="entry-summary">
<a href="#sample_value(value,sql_type,value_encoded,*,type_safe_value=true)-instance-method" class="signature"><strong>#sample_value</strong>(value, sql_type, value_encoded, *, type_safe_value = <span class="n">true</span>)</a>
<div class="summary"><p>Use <em>value</em> as sample value that should be stored in columns of type <em>sql_type</em>.</p></div>
</li>
<li class="entry-summary">
<a href="#select_1column_syntax(&select_1column_syntax:Proc(String,ColumnDef,String))-instance-method" class="signature"><strong>#select_1column_syntax</strong>(&select_1column_syntax : Proc(String, ColumnDef, String))</a>
</li>
<li class="entry-summary">
<a href="#select_2columns_syntax(&select_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method" class="signature"><strong>#select_2columns_syntax</strong>(&select_2columns_syntax : Proc(String, ColumnDef, ColumnDef, String))</a>
</li>
<li class="entry-summary">
<a href="#select_count_syntax(&select_count_syntax:Proc(String,String))-instance-method" class="signature"><strong>#select_count_syntax</strong>(&select_count_syntax : Proc(String, String))</a>
</li>
<li class="entry-summary">
<a href="#select_scalar_syntax(&select_scalar_syntax:Proc(String,String?,String))-instance-method" class="signature"><strong>#select_scalar_syntax</strong>(&select_scalar_syntax : Proc(String, String?, String))</a>
</li>
<li class="entry-summary">
<a href="#support_prepared(support_prepared:Bool)-instance-method" class="signature"><strong>#support_prepared</strong>(support_prepared : Bool)</a>
<div class="summary"><p>Allow specs that uses prepared statements (default <code>true</code>)</p></div>
</li>
<li class="entry-summary">
<a href="#support_unprepared(support_unprepared:Bool)-instance-method" class="signature"><strong>#support_unprepared</strong>(support_unprepared : Bool)</a>
<div class="summary"><p>Allow specs that uses unprepared statements (default <code>true</code>)</p></div>
</li>
</ul>
<div class="methods-inherited">
</div>
<h2>
<a id="class-method-detail" class="anchor" href="#class-method-detail">
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Class Method Detail
</h2>
<div class="entry-detail" id="run(description=&amp;quot;asadb&amp;quot;,&amp;)-class-method">
<div class="signature">
def self.<strong>run</strong>(description = <span class="s">&quot;as a db&quot;</span>, &)
<a class="method-permalink" href="#run(description=&quot;asadb&quot;,&)-class-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L468" target="_blank">View source</a>]
</div>
</div>
<h2>
<a id="instance-method-detail" class="anchor" href="#instance-method-detail">
<svg class="octicon-link" aria-hidden="true">
<use href="#octicon-link"/>
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Instance Method Detail
</h2>
<div class="entry-detail" id="after(&amp;after:-&gt;Nil)-instance-method">
<div class="signature">
def <strong>after</strong>(&after : -> Nil)
<a class="method-permalink" href="#after(&after:-%3ENil)-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L63" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="before(&amp;before:-&gt;Nil)-instance-method">
<div class="signature">
def <strong>before</strong>(&before : -> Nil)
<a class="method-permalink" href="#before(&before:-%3ENil)-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L60" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="binding_syntax(&amp;binding_syntax:Proc(Int32,String))-instance-method">
<div class="signature">
def <strong>binding_syntax</strong>(&binding_syntax : Proc(Int32, String))
<a class="method-permalink" href="#binding_syntax(&binding_syntax:Proc(Int32,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L110" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="connection_string(connection_string:String)-instance-method">
<div class="signature">
def <strong>connection_string</strong>(connection_string : String)
<a class="method-permalink" href="#connection_string(connection_string:String)-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L109" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="create_table_1column_syntax(&amp;create_table_1column_syntax:Proc(String,ColumnDef,String))-instance-method">
<div class="signature">
def <strong>create_table_1column_syntax</strong>(&create_table_1column_syntax : Proc(String, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, String))
<a class="method-permalink" href="#create_table_1column_syntax(&create_table_1column_syntax:Proc(String,ColumnDef,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L112" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="create_table_2columns_syntax(&amp;create_table_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method">
<div class="signature">
def <strong>create_table_2columns_syntax</strong>(&create_table_2columns_syntax : Proc(String, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, String))
<a class="method-permalink" href="#create_table_2columns_syntax(&create_table_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L113" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="drop_table_if_exists_syntax(&amp;drop_table_if_exists_syntax:Proc(String,String))-instance-method">
<div class="signature">
def <strong>drop_table_if_exists_syntax</strong>(&drop_table_if_exists_syntax : Proc(String, String))
<a class="method-permalink" href="#drop_table_if_exists_syntax(&drop_table_if_exists_syntax:Proc(String,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L119" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="encode_null(encode_null:String)-instance-method">
<div class="signature">
def <strong>encode_null</strong>(encode_null : String)
<a class="method-permalink" href="#encode_null(encode_null:String)-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L66" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="insert_1column_syntax(&amp;insert_1column_syntax:Proc(String,ColumnDef,String,String))-instance-method">
<div class="signature">
def <strong>insert_1column_syntax</strong>(&insert_1column_syntax : Proc(String, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, String, String))
<a class="method-permalink" href="#insert_1column_syntax(&insert_1column_syntax:Proc(String,ColumnDef,String,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L114" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="insert_2columns_syntax(&amp;insert_2columns_syntax:Proc(String,ColumnDef,String,ColumnDef,String,String))-instance-method">
<div class="signature">
def <strong>insert_2columns_syntax</strong>(&insert_2columns_syntax : Proc(String, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, String, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, String, String))
<a class="method-permalink" href="#insert_2columns_syntax(&insert_2columns_syntax:Proc(String,ColumnDef,String,ColumnDef,String,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L115" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="it(description=&amp;quot;assert&amp;quot;,prepared=:default,file=__FILE__,line=__LINE__,end_line=__END_LINE__,&amp;block:DB::Database-&gt;)-instance-method">
<div class="signature">
def <strong>it</strong>(description = <span class="s">&quot;assert&quot;</span>, prepared = <span class="n">:default</span>, file = __FILE__, line = __LINE__, end_line = __END_LINE__, &block : <a href="../DB/Database.html">DB::Database</a> -> )
<a class="method-permalink" href="#it(description=&quot;assert&quot;,prepared=:default,file=__FILE__,line=__LINE__,end_line=__END_LINE__,&block:DB::Database-%3E)-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L125" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="its-instance-method">
<div class="signature">
def <strong>its</strong>
<a class="method-permalink" href="#its-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L123" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="sample_value(value,sql_type,value_encoded,*,type_safe_value=true)-instance-method">
<div class="signature">
def <strong>sample_value</strong>(value, sql_type, value_encoded, *, type_safe_value = <span class="n">true</span>)
<a class="method-permalink" href="#sample_value(value,sql_type,value_encoded,*,type_safe_value=true)-instance-method">#</a>
</div>
<div class="doc">
<p>Use <em>value</em> as sample value that should be stored in columns of type <em>sql_type</em>.
<em>value_encoded</em> is driver specific expression that should generate that value in the database.
<em>type_safe_value</em> indicates whether <em>value_encoded</em> is expected to generate the <em>value</em> even without
been stored in a table (default <code>true</code>).</p>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L138" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="select_1column_syntax(&amp;select_1column_syntax:Proc(String,ColumnDef,String))-instance-method">
<div class="signature">
def <strong>select_1column_syntax</strong>(&select_1column_syntax : Proc(String, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, String))
<a class="method-permalink" href="#select_1column_syntax(&select_1column_syntax:Proc(String,ColumnDef,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L116" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="select_2columns_syntax(&amp;select_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method">
<div class="signature">
def <strong>select_2columns_syntax</strong>(&select_2columns_syntax : Proc(String, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, <a href="../DB/DriverSpecs/ColumnDef.html">ColumnDef</a>, String))
<a class="method-permalink" href="#select_2columns_syntax(&select_2columns_syntax:Proc(String,ColumnDef,ColumnDef,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L117" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="select_count_syntax(&amp;select_count_syntax:Proc(String,String))-instance-method">
<div class="signature">
def <strong>select_count_syntax</strong>(&select_count_syntax : Proc(String, String))
<a class="method-permalink" href="#select_count_syntax(&select_count_syntax:Proc(String,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L118" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="select_scalar_syntax(&amp;select_scalar_syntax:Proc(String,String?,String))-instance-method">
<div class="signature">
def <strong>select_scalar_syntax</strong>(&select_scalar_syntax : Proc(String, String?, String))
<a class="method-permalink" href="#select_scalar_syntax(&select_scalar_syntax:Proc(String,String?,String))-instance-method">#</a>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L111" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="support_prepared(support_prepared:Bool)-instance-method">
<div class="signature">
def <strong>support_prepared</strong>(support_prepared : Bool)
<a class="method-permalink" href="#support_prepared(support_prepared:Bool)-instance-method">#</a>
</div>
<div class="doc">
<p>Allow specs that uses prepared statements (default <code>true</code>)</p>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L70" target="_blank">View source</a>]
</div>
</div>
<div class="entry-detail" id="support_unprepared(support_unprepared:Bool)-instance-method">
<div class="signature">
def <strong>support_unprepared</strong>(support_unprepared : Bool)
<a class="method-permalink" href="#support_unprepared(support_unprepared:Bool)-instance-method">#</a>
</div>
<div class="doc">
<p>Allow specs that uses unprepared statements (default <code>true</code>)</p>
</div>
<br/>
<div>
[<a href="https://github.com/crystal-lang/crystal-db/blob/7e83f8e26c2f9a5cde0693007b1c1486d00f7685/src/spec.cr#L79" target="_blank">View source</a>]
</div>
</div>
</div>
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