mirror of
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58 lines
1.2 KiB
C++
58 lines
1.2 KiB
C++
//////////////////////////////////////////////////////////////////////////
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//
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// pgScript - PostgreSQL Tools
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//
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// Copyright (C) 2002 - 2016, The pgAdmin Development Team
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// This software is released under the PostgreSQL Licence
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//
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//////////////////////////////////////////////////////////////////////////
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#include "pgAdmin3.h"
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#include "pgscript/expressions/pgsColumns.h"
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#include "pgscript/objects/pgsNumber.h"
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#include "pgscript/objects/pgsRecord.h"
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pgsColumns::pgsColumns(const wxString &name) :
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pgsExpression(), m_name(name)
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{
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}
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pgsColumns::~pgsColumns()
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{
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}
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pgsExpression *pgsColumns::clone() const
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{
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return pnew pgsColumns(*this);
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}
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wxString pgsColumns::value() const
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{
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return wxString() << wxT("COLUMNS(") << m_name << wxT(")");
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}
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pgsOperand pgsColumns::eval(pgsVarMap &vars) const
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{
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if (vars.find(m_name) != vars.end())
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{
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if (vars[m_name]->is_record())
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{
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const pgsRecord &rec = dynamic_cast<const pgsRecord &>(*vars[m_name]);
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return pnew pgsNumber(wxString() << rec.count_columns(), pgsInt);
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}
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else
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{
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// Not a record: 1 line and 1 column
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return pnew pgsNumber(wxT("1"), pgsInt);
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}
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}
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else
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{
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// Does not exist: 0 line and 0 column
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return pnew pgsNumber(wxT("0"), pgsInt);
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}
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}
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