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  1. PO
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    <p>Line 980:</p> <pre><code>980 $this-&gt;_table_columns = array_combine($this-&gt;_table_columns, $this-&gt;_table_columns); </code></pre> <p>looks superfluous taken the previous line 979 into account:</p> <pre><code>979 $this-&gt;_table_columns = $this-&gt;list_columns(); </code></pre> <p>Merging two times the same array is useless, especially as the array is this:</p> <pre><code>array(2) { ["id"]=&gt; array(13) { ["type"]=&gt; string(3) "int" ["min"]=&gt; string(11) "-2147483648" ["max"]=&gt; string(10) "2147483647" ["column_name"]=&gt; string(2) "id" ["column_default"]=&gt; NULL ["data_type"]=&gt; string(3) "int" ["is_nullable"]=&gt; bool(false) ["ordinal_position"]=&gt; int(1) ["display"]=&gt; string(2) "11" ["comment"]=&gt; string(0) "" ["extra"]=&gt; string(14) "auto_increment" ["key"]=&gt; string(3) "PRI" ["privileges"]=&gt; string(31) "select,insert,update,references" } ["name"]=&gt; array(12) { ["type"]=&gt; string(6) "string" ["column_name"]=&gt; string(4) "name" ["column_default"]=&gt; NULL ["data_type"]=&gt; string(7) "varchar" ["is_nullable"]=&gt; bool(false) ["ordinal_position"]=&gt; int(2) ["character_maximum_length"]=&gt; string(2) "50" ["collation_name"]=&gt; string(15) "utf8_general_ci" ["comment"]=&gt; string(0) "" ["extra"]=&gt; string(0) "" ["key"]=&gt; string(0) "" ["privileges"]=&gt; string(31) "select,insert,update,references" } } </code></pre> <p>It only contains string keys. You should open a bug report with the kohana framework.</p> <p>Comment line 980 until this get's fixed.</p>
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    1. POKohana ORM: Array to string conversion Error
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    1. UShakre
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    1. VO
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      1. VTUpMod
    1. COyou are right, the line is just ... useless, however a second error pops up when doing this, same kind of error but this time in line 931: $values = array_combine($this->_table_columns, array_fill(0, count($this->_table_columns), NULL)); I guess I will report this issue to kohana and see what they can do
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      1. USrootman
    2. COThe problem with such superfluous looking lines is that they contain some archeological information and - as you can see - hide flaws. From what you describe, `$this->_table_columns` does not contain an array under some circumstances. As one is expected I would hardly bail out in line 980 `if (!is_array($this->_table_columns)) throw new UnexpectedValueException('Not an array');` - You will then get a fatal error instead of a notice but it prevents to leave the application in an undefined state. It might also help to find what's causing this through the backtrace.
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      1. UShakre
    3. COI've created an issue at http://dev.kohanaframework.org/issues/4352 . I think it's an issue that should be addressed asap because it prevents further development if you don't want to tinker around in core files.
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