Re: Help Evaluating Nested Maps
Daniel Dekany <[email protected]> Wed, 12 Jul 2006 05:07:31 +0200
| Newsgroups | gmane.comp.text.fmpp |
|---|---|
| Message-ID | <[email protected]> |
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<p>I doesn't see any problem with this... so it's probably that GHI reall=
y doesn't have an entry with "A1" key, or that "A1" is mapped to a Java n=
ull value (that way the value is missing despite that the key exists).</p=
>
<p><br></p>
<p>What do you see if you list the hash entries like:</p>
<p><br></p>
<p><#list ABC.DEF.GHI?keys as k></p>
<p>${k} =3D> ${ABC.DEF.GHI[k]?default('Java null')}</p>
<p></#list></p>
<p><br></p>
<p>Wednesday, July 12, 2006, 3:41:22 AM, Bruce Perryman wrote:</p>
<p><br></p>
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<p><span class=3Drvts6>></span></p>
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<p><span class=3Drvts7>OK,</span></p>
<p><br></p>
<p><span class=3Drvts7>I'm doing something wrong, again.</span></p>
<p><br></p>
<p><span class=3Drvts7>This is the structure of my maps:</span></p>
<p><br></p>
<p><span class=3Drvts7>ABC</span></p>
<p><span class=3Drvts7> ||</span></p>
<p><span class=3Drvts7> =3D>DEF</span></p>
<p><span class=3Drvts7> ||</span></p>
<p><span class=3Drvts7> =3D>GHI</span></p>
<p><span class=3Drvts7> |=
|</span></p>
<p><span class=3Drvts7> =3D=
>A1=3Da</span></p>
<p><span class=3Drvts7> =3D=
>A2=3Db</span></p>
<p><span class=3Drvts7> =3D=
>A3=3Dc</span></p>
<p><span class=3Drvts7> =3D>GHI2</span></p>
<p><span class=3Drvts7> |=
|</span></p>
<p><span class=3Drvts7> =3D=
>B1=3Dd</span></p>
<p><span class=3Drvts7> =3D=
>B2=3De</span></p>
<p><span class=3Drvts7> =3D=
>B3=3Df</span></p>
<p><br></p>
<p><span class=3Drvts7>Hopefully this description makes sense to you. ABC=
contains a map DEF and DEF contains a few maps, two of which are GHI, an=
d GHI2.</span></p>
<p><br></p>
<p><span class=3Drvts7>I am trying to evaluate A1 at the GHI level. This =
I do as follows:</span></p>
<p><br></p>
<p><span class=3Drvts7>${ABC.DEF.GHI.A1}</span></p>
<p><br></p>
<p><span class=3Drvts7>This results in the error that A1 is undefined. If=
I evaluate ${ABC.DEF.GHI} the error is that a string, etc. is expected b=
ut the expression evaluates to a simple hash.</span></p>
<p><br></p>
<p><span class=3Drvts7>Can you please point me in the right direction? Ul=
timately, I want to be able to use a variable to represent the GHI level =
with something like:</span></p>
<p><br></p>
<p><span class=3Drvts7>${ABC.DEF[x].A1}</span></p>
<p><br></p>
<p><span class=3Drvts7>But I thought I'd work with the 'simple' case firs=
t.</span></p>
<p><br></p>
<p><span class=3Drvts7>Thanks in advance for your help.</span></p>
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<p><br></p>
<p><span class=3Drvts9>-- </span></p>
<p><span class=3Drvts9>Best regards,</span></p>
<p><span class=3Drvts9> Daniel Dekany</span></p>
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